A student throws a baseball upwards at an angle of 60 degrees to the horizontal. The initial horizontal and vertical components are 12.5 m/s and 21.7 m/s, respectively. What position will have the greatest magnitude of vertical acceleration

Answers

Answer 1

Answer:

All positions have constant acceleration

Explanation:

Projectiles have two velocity component; a vertical velocity and a horizontal velocity. The horizontal velocity is constant while the vertical velocity is acted upon by the force of gravity, causing a change of vertical velocity.

If the air resistance is negligible, the acceleration of a projectile would be constant and equal to the acceleration due to gravity. This means that the acceleration for a projectile is the same at every point in its trajectory.


Related Questions

WGVU-AM is a radio station that serves the Grand Rapids, Michigan area. The main broadcast frequency is 1480kHz. At a certain distance from the radio station transmitter, the magnitude of the magnetic field of the electromagnetic wave is 3.0x10^-11T.
a. Calculate the wavelength
b. What is the angular velocity?
c. Find the wave number of the wave.
d. What is the amplitude of the electric field at this distance from the transmitter?

Answers

Answer:

a

  [tex]\lambda = 202.7 \ m[/tex]

b

  [tex]w = 9.3 *10^{6} \ rad/s[/tex]

c

  [tex]k = 0.031 m^{-1}[/tex]

d

  [tex]E_{max} = 9.0 *10^{-3} \ V/m[/tex]

Explanation:

From the question we are told that  

       The frequency of the radio station is  [tex]f= 1480 \ kHz = 1480 *10^{3}\ Hz[/tex]

         The magnitude of the magnetic field is  [tex]B = 3.0* 10^{-11} \ T[/tex]

Generally the wavelength is mathematically represented as

          [tex]\lambda = \frac{c}{f}[/tex]

Here c is the speed of light with value  [tex]c = 3.0 *10^{8} \ m/s[/tex]

So

        [tex]\lambda = \frac{3.0 *10^{8}}{ 1480 *10^{3}}[/tex]

=>      [tex]\lambda = 202.7 \ m[/tex]

Generally the angular frequency is mathematically represented as

       [tex]w = 2 \pi * f[/tex]

=>   [tex]w = 2 * 3.142 * 1480 *10^{3}[/tex]

=>   [tex]w = 9.3 *10^{6} \ rad/s[/tex]

Generally the wave number is mathematically represented as        

=>      [tex]k = \frac{2 \pi }{\lambda}[/tex]

=>      [tex]k = \frac{2 * 3.142 }{ 202.7}[/tex]

=>      [tex]k = 0.031 m^{-1}[/tex]

Generally the amplitude of the electric field at this distance from the transmitter is mathematically represented as

         [tex]E_{max} = c * B[/tex]

=>      [tex]E_{max} = 3.0 *10^{8} * 3.0* 10^{-11}[/tex]

=>      [tex]E_{max} = 9.0 *10^{-3} \ V/m[/tex]

The US Patent and Trademark Office is responsible for protecting the intellectual property of inventors. A patent is granted if the idea is original and scientifically valid. A student creates a device that they claim will change the world by changing the way we understand energy. The student includes a table of energy measurements as part of his application.

Answers

Answer:

Deny the patent- the machine violates the law of conservation of mass

Explanation:

Took the test

g You heard the sound of a distant explosion (3.50 A/10) seconds after you saw it happen. If the temperature of the air is (15.0 B) oC, how far were you from the site of the explosion

Answers

Answer:

The answer is "1557 meters".

Explanation:

speed of sound in ([tex]\frac{m}{s}[/tex]) [tex]= 331.5 + 0.60 \ T^{\circ}\ C\\\\[/tex]

[tex]\to V = 331.5 + 0.6 \times 24 = 346 \frac{m}{s}\\\\\to t = 4.5 \ seconds \\\\\to S = vt = 346 \times 4.5 = 1557 \ meters[/tex]

A generator is a machine which makes:

electricity
magnetism
magnetic materials

Answers

Answer: generator is a machine which makes electricity.

Explanation: When powered on, generator makes energy for homes and business. This is especially the case with power outages.
The answer is electricity!

At what angle in degrees is the first-order maximum for 460-nm wavelength blue light falling on double slits separated by 0.0500 mm?

Answers

Answer:

The angle is [tex]\theta = 0.52^o[/tex]

Explanation:

From the question we are told that

    The number of order is  n =  1

     The wavelength is   [tex]\lambda = 460 \ nm = 460 *10^{- 9} \ m[/tex]

     The separation between the slit is  [tex]d = 0.0500 \ mm = 5 *10^{-5} \ m[/tex]

Generally the condition for constructive interference is  

         [tex]d sin \theta = n * \lambda[/tex]

=>     [tex]\theta = sin^{-1}[\frac{n * \lambda }{ d} ][/tex]

=>    [tex]\theta = sin^{-1}[\frac{1 * 450 *10^{-9}}{ 5*10^{-5}} ][/tex]

=>    [tex]\theta = sin^{-1}[0.009 ][/tex]

=>    [tex]\theta = 0.52^o[/tex]

Which statement places events during the Space Race in the correct order from the earliest to the most recent?

1.NASA was established, US satellite Explorer launched, first man walked on the moon, first man orbited the Earth

2.first man walked on the moon, first man orbited the Earth, NASA was established, US satellite Explorer launched

3.US satellite Explorer launched, NASA was established, first man orbited the Earth, first man walked on the moon

4. first man orbited the Earth, first man walked on the moon, US satellite Explorer launched, NASA was established

Answers

Answer:

3,1,4,2

Explanation:

Answer:C

Explanation:

Which of the following is correct? *
PLEASE HELP MEEEE
1 cm = 100 m
1 mm = 100 cm
100 mm = 1 cm
1 m = 100 cm

Answers

Answer:

The last one

1m = 100 cm

Explanation:

If you do not trust me look it up

An object is placed 10 cm from a convex lens of focal length 20 cm. What is the lateral magnification of the object?
A) 0.50
B) 1.0
C) 1.5
D) 2.0
E) 2.5

Answers

Answer:

D 2

Explanation:

Given that

Distance of the object, u = 10 cm

Focal distance of the object, f = 20 cm

Then again, we know from the lens formula that

1/f = 1/u + 1/v

Then we solve for the distance of the image, v

1/20 = 1/10 + 1/v

1/v = 1/20 - 1/10

1/v = (1 - 2) /20

1/v = -1/20

v = -20 cm

Lateral magnification is given as

m = -v/u,

So we input our values

m = - -20/10

m = 20/10

m = 2

A book is sitting on a table. Which of the following is true about the table?

Answers

Answer:

Its pulling down on the book

Explanation: if it was pushing up the book would be floating and the other choices don't make sense

Answer:
C


Hope this helps!! :D

Which structures are found in the middle ear? Check all that apply.

A. hammer
B. anvil
C. ear canal
D. cochlea
E. ear drum
F. stirrup

Answers

Answer:

E, A, B, F

Explanation:

The Middle Ear contains:

eardrum.

cavity (also called the tympanic cavity)

ossicles (3 tiny bones that are attached) malleus (or hammer) - long handle attached to the eardrum. incus (or anvil) - the bridge bone between the malleus and the stapes. stapes (or stirrup) - the footplate; the smallest bone in the body.

Answer: rawr

Explanation:

hammer

anvil

ear drum

stirrup

What is the correct unit for the following measurement?

Jane wants to know how long her room is.
gm/cm3
liters (L)
cubic centimeters (cm3)
Celsius (°C)
grams (g)
meters (m)

Answers

If Jane wants to know how long her room is, the correct unit for the measurement is meters (m).

In the question, we are told that Jane wants to measure her room. This means that Jane wants to measure length. The only unit of length that is mentioned among the options is meters (m).

This means that, if Jane wants to know how long her room is, the correct unit for the measurement is meters (m).

Learn more: https://brainly.com/question/8646601

Answer: meters (m)

Explanation:

In an open circuit like the picture

A. the light bulb will produce light
B. a resistor controls the flow of current
C. the light bulb will be off
D. current will flow

Answers

C. The light bulb will be off
This is due to the reason that the wire doesn’t go back to the battery :)

In an open circuit like the picture the light bulb will be off. So, option (C) is correct.

What is electric circuit?

Electric circuit is a way for current to flow through electricity. An electric circuit consists of a source of energy for the charged particles that make up the current, like a battery or generator; sources of current-using equipment, like lamps, electric motors, or computers; and the connecting wires or transmission lines.

Ohm's law and Kirchhoff's rules are two of the fundamental mathematical laws that define how electric circuits function.

In the given diagram, the circuit is open. So, no current passes through it and the light bulb will be off. Hence, option (C) is correct.

Learn more about electric circuit here:

https://brainly.com/question/29032441

#SPJ2

How much of the day do we spend sleeping?

Answers

Answer:

roughly 8-10 hours for the average human being

Explanation:

I THINK 7 HOURS ...... WELL TJATS HOW MUCH I SPEND

A piston contains oxygen at 280 k occupying a volume of 0.25m3. The cylinder is compressed adiabatically to 0.14 m3, find the increase in temperature of the gas.

Answers

dhvxdryvbjjolbcsdfunnlpifsaf

What type of electromagnetic wave is a TV remote and a cloud

Answers

Answer: Kids learn about the types of electromagnetic waves in the science of physics ... Microwaves are useful in communication because they can penetrate clouds, ... These are the infrared waves that are used in your TV remote to change channels

Explanation:

calculate the net force

250N left force and right force is 150N​

Answers

Answer

100N on the left force

Explanation:

You have to subtract 250 - 100 and the reamaining would be 100 and that 100 would go to the left force since it was the higher number

If the same force is applied to each of these balls, which one will have the LEAST
acceleration
A
m 1.0 kg
B
m=7.3 kg 1
С
m=0.75 kg
D
m=0.5 kg

Answers

Answer:

d is the awnser

Explanation:

MABY?!??

A 500-eV electron and a 300-eV electron trapped in a uniform magnetic field move in circular paths in a plane perpendicular to the magnetic field. What is the ratio of the radii of their orbits?
a. 2.8
b. 1.7.
c. 1.3.
d. 4.0.
e. 1.0.

Answers

Answer:ratio of the radii of their orbits = 1.3 --- C

Explanation:

1- eV = to the kinetic energy of the electrons

and kinetic energy is given as

K.E= 1/2mv2

v = √(2E/m)----- equation 1

The force on the particles  relating to the magnetic and circular motion ( centripetal force is given as

F = magnetic force = centripetal force

F= qvB = mv2/r

qvB = mv2/r

  r = mv/qB ------ equation 2

We know from equation 1 that v = √(2E/m)

Therefore,

r = √(2mE)/qB------ equation 3

We can now say that the  ratio of the two radii of their orbits can be calculated as

r1/r2 =(√(2mE1)/qB) /(√(2mE2)/qB

Where E1 = 500-eV  and E2 = 300-eV (1- eV = to the kinetic energy of the electrons)

r1/r2 = (√(2m x500)/qB) /(√(2mx 300)/qB

Cancelling out common variables, we are left with

r1/r2 =[tex]\sqrt{500/300}[/tex]

r1/r2= 1.29 ≈ 1.3

   

A torque acting on an object tends to produce..

Answers

Torque will produce rotation

Answer:rotation

Explanation:

Rahim is watching his favorite football team on television. In order to work, the television must be
plugged into an electrical outlet. When the television gets turned on, what is the main energy
transformation demonstrated by the television?

Answers

Answer:

it would be the cord will have the most energy at the moment.

Explanation:

...

20 pts.





Which of the following statements is true?
O Electromagnets use electrlcity and magnets.
O Magnetic fields are strongest around the poles of a magnet.
O The south pole of a magnet will repel the south pole of another magnet.
O all of the above

Answers

Answer:

all are true so d is right

Explanation:

Electromagnets use electrlcity and magnets is true.

Magnetic fields are strongest around the poles of a magnet is true.

The south pole of a magnet will repel the south pole of another magnet is true

and since all of them is true the answer is d all of the above

Help me please

What is the shape of the velocity vs time graph for an object going at constant speed?

A- A curve that rises gradually to the right

B- A curve that decreases gradually to the right

C- A straight line that rises gradually to the right

D- A strait line that decreases gradually to the right

E- A straight line that is level and neither increases or decreases going to the right

Answers

Answer: a or b can u pls give me brainlest

Explanation:A straight line is a curve with constant slope. Since slope is acceleration on a velocity-time graph, each of the objects represented on this graph is moving with a constant acceleration.

When you look at yourself in a convex mirror, you appear to be ¼ your actual size. If you are standing 1.0 m in front of the mirror, what is the mirror’s focal length and radius of curvature. (Be sure to first sketch the situation).

Answers

Answer:

The focal length is   [tex]f = -0.2 \ m[/tex]

The radius of curvature is [tex]R = -0.4 \ m[/tex]

Explanation:

From the question we are told that

       The magnification of the mirror is  [tex]m = \frac{1}{2}[/tex]

       The distance of the person from the mirror(the object distance ) is  [tex]u = - 1.0 \ m[/tex]

        The negative sign shows that it is been placed in front of the mirror

         

Generally the magnification of the mirror is mathematically represented as

       [tex]m = \frac{v}{u}[/tex]

=>   [tex]\frac{1}{4} = \frac{v}{-u}[/tex]

=>   [tex]v = \frac{- 1}{4}[/tex]

Generally from the lens equation we have that

        [tex]\frac{1}{f} = \frac{1}{u} + \frac{1}{v}[/tex]

=>     [tex]\frac{1}{f} = \frac{1}{-1 } + \frac{1}{-\frac{1}{4} }[/tex]

=>     [tex]f = -0.2 \ m[/tex]

Generally the radius of curvature is  mathematically represented as

         [tex]R = 2 * f[/tex]

=>      [tex]R = 2 * - 0.2[/tex]

=>      [tex]R = -0.4 \ m[/tex]

A horse travels 1200 meters to the right in 60 seconds. What was its velocity?

a. 72,000 m/s
b. 20 m/s
c. 0.05 m/s
d. 1260 m/s​

Answers

Answer:

a

Explanation:

If its not right choose D

For constant volume processes the heat capacity of gas A is greater than the heat capacity of gas B. We conclude that when they both absorb the same energy as heat at constant volume:
A. the temperature of A increases more than the temperature of B
B. the temperature of B increases more than the temperature of A
C. the internal energy of A increases more than the internal energy of B
D. the internal energy of B increases more than the internal energy of A
E. A does more positive work than B

Answers

Answer:

B). the temperature of B increases more than the temperature of A

Explanation:

For constant volume process, relation between molar heat capacity and temperature is given by,

[tex]$\Delta Q = mC_v \Delta T$[/tex]

where, ΔQ is the amount of heat required

              m is the mass of the gas

              [tex]$C_v$[/tex] is heat capacity at constant volume

              ΔT is the change in temperature.

For a constant energy ΔQ,

[tex]$C_v=\frac{1}{\Delta T}$[/tex]

Given, [tex]$(C_v)_A>(C_v)_B$[/tex]

∴     [tex]$(\Delta T)_A < (\Delta T)_B $[/tex]

Thus the temperature of gas B increases more than the temperature of gas A.

A 96 kg man lying on a surface of negligible friction shoves a 75 g stone away from himself, giving it a speed of 7.2 m/s. What speed does the man acquire as a result?

Answers

Answer:

7.21m/s

Explanation:

Using the law of conservation of momentum expressed as;

m1u1 + m2u2 = (m1+m2)v

m1 and m2 are the mass of the man and the stone respectively

u1 and u2 are their respective initial velocities

v is their final common velocity

Given

m1 = 96kg

m2 = 75g = 0.075kg

u1 = ?

u2 = 0m/s (initial speed of the stone)

v = 7.2m/s

Substitute into the firmula and get u1

96u1 + 0.075(0) = (96 + 0.075)(7.2)

96u1 = 96.075(7.2)

u1 = 691.74/96

u1 = 7.21m/s

Hence the man acquired a speed of 7.21m/s

HELP !!!!!
A. not enough information

B. only volume (cm3) is the independent variable

C. the slope of the trend line

D. both volume (cm3) and mass (grams) are independent variables

E. only mass (grams) is the independent variable

Answers

Answer:D

Explanation:

Answer:

C. The slope of the line

Explanation:

The slope of the trend line is independent (this is a density of the body by the way). The volume of the body depends on the mass, and the mass depends on the volume

Which of the factors below is NOT critical in developing good physical fitness? *

environment
behavior
age
heredity

Answers

Answer: Age

Explanation:

Physical fitness has to do with the effective and efficient working of the body system which allows individuals to be healthy.

The factors that are critical in developing good physical fitness include the environment, the behavior of the individual and heredity. To maintain physical fitness, one should exercise, eat healthy, avoid smoking etc. Age is not a factor in physical fitness.

g A communication system operating at a power of 510 W produces electromagnetic radiation with a wavelength of 10.5 cm . Calculate the number of photons produced by the system per minute.

Answers

Answer:

The value is  [tex]N = 2.69 *10^{26} \ photons[/tex]

Explanation:

From the question we are told that

    The power is  [tex]P = 510 \ W[/tex]  

    The wavelength is  [tex]\lambda = 10.5 \ cm = 0.105 \ m[/tex]

   

Gnerally the number of photon produced is mathematically represented as

             [tex]N = \frac{P * \lambda }{ h * c }[/tex]

Here  [tex]h[/tex] is the Planck's constant with a value   [tex]h = 6.62607015 * 10^{-34} J \cdot s[/tex]

          c is the speed of light with value  [tex]c = 3.0*10^{8 } \ m/s[/tex]

So  

             [tex]N = \frac{ 510 * 0.105 }{ 6.62607015 * 10^{-34} * 3.0 *10^{8} }[/tex]

=>          [tex]N = 2.69 *10^{26} \ photons[/tex]

Find the current if 55 C of charge pass a particular point in a circuit in 5 seconds.

Answers

Answer:

The current is 11 Amperes

Explanation:

Electric Current

The electric current is defined as a stream of charged particles that move through a conductive path.

The current intensity can be calculated as:

[tex]\displaystyle I=\frac{Q}{t}[/tex]

Where:

Q = Electric charge

t   = Time taken by the charge to move through the conductor

The current intensity is often measured in Amperes.

The charge passing through a point in a circuit is Q= 55 c during t=5 seconds, thus the current intensity is:

[tex]\displaystyle I=\frac{55}{5}[/tex]

I = 11 Amp

The current is 11 Amperes

Other Questions
which sentence contains the best example of paradox Select the correct name for each part of the equation Marin Company's accounts receivable arising from sales to customers amounted to $131000 and $114000 at the beginning and end of the year, respectively. Income reported on the income statement for the year was $498000. Exclusive of the effect of other adjustments, the cash flows from operating activities to be reported on the statement of cash flows is What is the definition of reflection of light? What is the framing guideline for photography? What are some ways of framing within a photograph? In what ways has life improved since the fall of Communism for devout Muslims in central Asian republics like Kazakhstan? Find the unit rate. Round to the nearest hundredth, if necessary. $380 for 18 ft2i'm in 7th grade btw so this is 7th grade mathhhh help ASAP plz and thanks !! Why was the council of 500 important to the athens Solve the inequality + 6 > -3. In bio-medical science do i need to know how to read a finger-print? What were the main purposes of the counter Reformation? Write an expression that is equivalent to 5(6 + y) A landscaper receives a discount on each plant purchased. The original price of each plant is x dollars. The landscaper purchases 20 plants for a total of (20x-80) dollars. By how much is each plant discounted? A slow pace in narrative creates Which of the following scenarios best demonstrates an employee being responsible? A. Sophia greets each customer with a smile. B. Juan listens to coworkers and lets them finish talking before he speaks C. Fredrick volunteers to help on a project beyond his normal duties. D. Gabriel stays late after work to finish a task that is due. Need help with homework-math Question 9 PART 1: MULTIPLE CHOICE Choose the best answer for each question from the choices available. Who was the last pharaoh to rule Egypt before it fell to Roman conquest? 0 Thutmose III O Hatshepsut O Cleopatra VII O Khafu Findhowmany times21+9 goesinto 1312 Write a chemical equation for cellular respiration. Label the molecules involved. Help! Although claimed to be seen by many, the Loch Ness Monster's existence has not been.................a culminatedb. complicatedc. sophisticatedd. authenticated