Answer:
Can Newton's laws of motion be broken?
Explanation:
A team of researchers has managed to (very technically) break Newton's third law of motion — that every action has an equal and opposite reaction — by accelerating laser pulses around a loop seemingly without any corresponding push-back.
Answer:
Newton’s laws of motion, three statements describing the relations between the forces acting on a body and the motion of the body, first formulated by English physicist and mathematician Isaac Newton, which are the foundation of classical mechanics.
Explanation:
Newton’s laws of motion, three statements describing the relations between the forces acting on a body and the motion of the body, first formulated by English physicist and mathematician Isaac Newton, which are the foundation of classical mechanics.
Which of the following research designs would be the most appropriate method for studying whether playing video games causes aggressive behavior?
A. a naturalistic observation
B. a case study
C. a true experiment
D. a correlational design
A correlational design would be the most appropriate method for studying whether playing video games causes aggressive behavior due to methodology of the design for finding the solution.
What is correlational research design?A correlational research investigates the relationships between variables without the interference of researcher or controlling or manipulating any of them. A correlation provides information about the direction of the relationship between two or more variables. The direction of a correlation can be positive or negative.
In conclusion, correlational design is the correct answer.
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If a quantity of heat equal to the magnitude of the change in mechanical energy of the water goes into the water, what is its increase in temperature
what is kinematics?
explain!!~
Answer:
Kinematics is the branch of science that studies the motion of objects through equations. It is a type of study in which the applied force is not required to calculate the motion.
Explanation:
The term kinematics in science refers to the study of motion without taking into account the forces that cause motion.
What is kinematics?The term kinematics in science refers to the study of motion without taking into account the forces that cause motion. It often involves only the equations of motion.
The other area of motion that takes force into account is called dynamics and depends on Newton's laws.
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2. If the system mass is 600 grams and the mass of the disks hanging on the string is 100 grams, predict the acceleration.
m/s/s
I need help as fast as possible PLEASE!!
The acceleration of the hanging disk is 49 m/s².
Acceleration of the massesThe acceleration of the masses will occur in the direction of the greater weight.
Net weight of the objectsThe net downward weight of the objects is calculated as follows;
[tex]F_{net} = W_2 - W_1\\\\F_{net} = g (m_2 - m_1)[/tex]
where;
g is acceleration due to gravitym₁ is the mass of the smaller object = 100 gramsm₂ is the mass of the bigger object = 600 gramsThe acceleration of the smaller massThe acceleration of the smaller object is calculated by applying Newton's second law of motion as follows;
[tex]m_1 a= g(m_2 - m_1)\\\\a = \frac{g(m_2 - m_1)}{m_1} \\\\a = \frac{9.8(600-100)}{100} \\\\a = 49 \ m/s^2[/tex]
Thus, the acceleration of the hanging disk is 49 m/s².
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Antonio ran 15 kilometers in 1.5 hours. His speed was
km/hr.
Answer:10.0001 km/hr
Explanation:v=s/t
15km =15000ms
1.5hr =5400s
V=15000m/5400s
V =2.778m/s
2.778m/s =10.0001 km/hr
His speed was 10 km/hr
Speed, distance and timeFrom the question, we are to determine Antonio's speed,
From the formula,
[tex]Speed = \frac{Distance}{Time}[/tex]
From the given information,
Distance = 15 km
Time = 1.5 hours
[tex]Speed = \frac{15}{1.5}[/tex]
Speed = 10 km/hr
Hence, his speed was 10 km/hr
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Find out the frequency of a sound wave whose wavelength is 15m.The speed of sound in air is 330m/s.
Answer:
Remember Speed equation
Explanation:
Speed= Frequency × wavelength
330/15=22km/h
Explanation:
i am not sure that this answer will be correct
I need help answering this, I keep running into dead ends.
You are target shooting using a toy gun that fires a small ball at a speed of 15 m/s. When the gun is fired at an angle of 35 ∘ above horizontal, the ball hits the bull's-eye of a target at the same height as the gun. Then the target distance is halved.
At what angle must you aim the gun to hit the bull's-eye in its new position? (Mathematically there are two solutions to this problem; the physically reasonable answer is the smaller of the two.)
Answer:
Use of the "range" formula will greatly simplify this -
R = V^2 sin 2 θ / g
R = 15^2 sin 70 / 9.8 = 21.6 m distance originally traveled
r = 21.6 /2 = 10.8 if distance is halved
sin 2 θ = 10.8 * 9.8 / 225 = 28.1 deg
θ = 14 deg
1. How do you determine which between the two object has a greater amount of potential energy?
2. How was potential energy changed into kinetic energy?
3. What was the position or condition of the materials that possess kinetic energy?
Answer:
All of these answers are dependent upon the specific scenario, but here are some general answers.
1. An object with a greater height will have more potential energy.
2. Potential energy can be changed into kinetic energy as an object falls. It loses height (potential energy) and gains speed (kinetic energy).
3. Depends on what scenario your class had.
Which Model represents a lithium isotope? Use your periodic table for this one!
Answer:-D
Answer:
The model D
Explanation:
if the environment does work on an object, the objects energy will ____
Answer:
Work changes the amount of mechanical and internal energy possessed by objects. When work is done on a system or object, energy is added to it. When work is done by a system or object, it gives some of its energy to something else. Throwing a ball means a hand applies a force as an arm swings forward.
Explanation:
Work changes the amount of mechanical and internal energy possessed by objects. When work is done on a system or object, energy is added to it. When work is done by a system or object, it gives some of its energy to something else. Throwing a ball means a hand applies a force as an arm swings forward.
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please help , I answered some of them but I just want to make sure if it's right
Answer:
are you having problems with something if so message this guy on
highest speed car crash would survive
Answer:
It might be like 45-50 mph
Explanation:
Part 1
A square plate is produced by welding together four smaller square plates, each of side
a. The weight of each of the four plates is
shown in the figure. Find the x-coordinate of the center of gravity (as a multiple of a).
Answer in units of a.
Part 2
Find the y-coordinate of the center of gravity
(as a multiple of a).
Answer in units of a.
a) The x-coordinate of the center of gravity is [tex]\frac{19}{18}\cdot a[/tex].
b) The y-coordinate of the center of gravity is [tex]\frac{19}{18}\cdot a[/tex].
Determination of the coordinates of the center of gravity
Let suppose that each square has an uniform density, the coordinates of the center of gravity of each square with respect to the origin are, respectively:
[tex]\vec r_{1} = (0.5\cdot a, 0.5\cdot a)[/tex]
[tex]\vec r_{2} = (1.5\cdot a, 0.5\cdot a)[/tex]
[tex]\vec r_{3} = (0.5\cdot a, 1.5\cdot a)[/tex]
[tex]\vec r_{4} = (1.5\cdot a, 1.5\cdot a)[/tex]
The center of gravity of the entire system is found by applying definition of weighted averages:
[tex]\vec r_{cg} = \frac{W_{1}\cdot \vec r_{1}+W_{2}\cdot \vec r_{2}+W_{3}\cdot \vec r_{3}+W_{4}\cdot \vec r_{4}}{W_{1}+W_{2}+W_{3}+W_{4}}[/tex]
Where [tex]W_{1}[/tex], [tex]W_{2}[/tex], [tex]W_{3}[/tex] and [tex]W_{4}[/tex] are weights of the each square, in newtons.
Now we proceed the coordinates of the center of gravity of the entire system:
[tex]\vec r_{cg} = \frac{(50\,N)\cdot (0.5\cdot a, 0.5\cdot a) + (30\,N)\cdot (1.5\cdot a, 0.5\cdot a)+(30\,N)\cdot (0.5\cdot a, 1.5\cdot a)+(70\,N)\cdot (1.5\cdot a, 1.5\cdot a)}{50\,N+30\,N+30\,N+70\,N}[/tex]
[tex]\vec r_{cg} = \frac{5}{18}\cdot (0.5\cdot a, 0.5\cdot a) +\frac{1}{6}\cdot (1.5\cdot a, 0.5\cdot a) +\frac{1}{6}\cdot (0.5\cdot a, 1.5\cdot a) + \frac{7}{18}\cdot (1.5\cdot a, 1.5\cdot a)[/tex]
[tex]\vec r_{cg} = \left(\frac{19}{18}\cdot a, \frac{19}{18}\cdot a \right)[/tex] [tex]\blacksquare[/tex]
a) The x-coordinate of the center of gravity is [tex]\frac{19}{18}\cdot a[/tex]. [tex]\blacksquare[/tex]
b) The y-coordinate of the center of gravity is [tex]\frac{19}{18}\cdot a[/tex]. [tex]\blacksquare[/tex]
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so couldn't read the previous tutors question sadly. probably threw it into a equation graphic. I CAN'T READ GRAPHICS LIKE THAT since I am blind. So here is the question again:
, a with right arrow above = 5b where B⃗ = 8 i^− 8 j^
Answer:
1. A =3i - 9j
B = -4i + 2j
A.B = -12 - 18 = -30
2. A = 5i + 5j
B = 2i - 4j
A.B = 10 - 20 = -10
3. A = 8i + 4j
B = 41 - 8j
A.B = 32 - 32 = 0
I will mark brainlist if it’s a good fact.
Can someone give me a fact about space that Is NOT about how space is complete silent or about a black hole cause I already used those. I only need one more fact. And when writing the fact tell me how is that possible. And please don’t copy off the internet cause my teacher would notice. And me to.
Answer:
o Their are more stars in space than there are grains of sand on earth, and more stars are created every day, we just don't see them yet.
Explanation:
I read a lot. use any of the three facts you like. I just thought that I should let you decide which one :)
Standing waves are set up on two strings fixed at each end, as shown in the drawing. The two strings have the same tension and mass per unit length, but they differ in length by 0.58 cm. The waves on the shorter string propagate with a speed of 41.9 m/s, and the fundamental frequency of the shorter string is 225 Hz. Determine the beat frequency produced by the two standing waves.
The beat frequency produced by the two standing waves is 13 Hz.
The wavelength of the shorter stringThe wavelength of the shorter string is calculated as follows;
[tex]L = \frac{\lambda}{2} \\\\\lambda = 2L\\\\\lambda = \frac{v}{f} \\\\\lambda = \frac{41.9}{225} \\\\\lambda = 0.186 \ m\\\\\lambda = 18.6 \ cm\\\\L= \frac{\lambda }{2} \\\\L = \frac{18.6 \ cm}{2} = 9.3\ cm[/tex]
The length of the longer string[tex]L_2 = 0.58 \ cm \ + 9.3 \ cm\\\\L_2 = 9.88 \ cm \\\\\lambda _2 = 2L_2\\\\\lambda _2 = 2(9.88 \ cm)\\\\\lambda_2 = 19.76 \ cm = 0.1976 \ m[/tex]
The frequency of the longer string is calculated as follows;
[tex]v_1 = v_2\\\\f_2 = \frac{v_2}{\lambda_2} \\\\f_2 = \frac{41.9}{0.1976} \\\\f_2 = 212 \ Hz[/tex]
Beat frequencyThe beat frequency produced by the two standing waves is calculated as follows;
[tex]F_b = 225 \ Hz \ - \ 212 \ Hz\\\\F_b = 13 \ Hz[/tex]
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2. In Erikson's eight stages of psychosocial development, toddlerhood is marked by
Autonomy versus shame and doubt is the second stage of Erik Erikson's stages of psychosocial development. This stage occurs between the ages of 18 months to around age 2 or 3 years. According to Erikson, children at this stage are focused on developing a greater sense of self-control.
Please answer and show work:
What time would it take a plane moving at 500milies/hour to travel 4000 miles?
A) 1.25 hours
B) 5 hours
C) 8 hours
D)500 hours
3- A car was traveled 110 meters in 5.5 seconds. What was the car's velocity?*
12 m/s
15 m/s
18 m/s
20 m/s
Answer:
20 m/s
Explanation:
* velocity = distance / time *
velocity = 110 / 5.5
velocity = 20 m/s
Answer:
V= 20m/s
Explanation:
velocity= distance/time
V= d/s
= 110m/5.5 seconds
= 20m/s
I am ion with 17 protons, 18 neutrons, and 18
electrons. Who am I and what is my charge?
Element Name:
Symbol and Charge (include + or - sign)
Am I a Cation or Anion? Explain.
If I see H+1 (hydrogen ion, charge + 1), will i
bond with her? Explain your answer
Pls show work
Answer:
chloride, ion, -1, this is an anion
Worth 20 points
Please answer showing the conversions
Answer:
b) 18 m/s is the correct answer.
Explanation:
initial velocity(u) = 30m/s
acceleration(a) = -4m/s²
time(t) = 3 seconds
final velocity(v) = ?
using the formula,
a = (v-u)/t
or, -4 = (v-30)/3
or, -12 = v-30
or, v = -12+30
so, v = 18 m/s
5. Identify Which of the following substances will conduct electric current aluminum foil, sugar
How much work is required to move a 1 nC charge from an electric potential of 0 V to a potential of 18V?
a) 56 µJ
b) No work is required by an external force because this is the natural movement of the charge.
c) 18 J
d) 56 MJ
e) 18GJ
f) 18 nJ
The work required to move a 1 nC charge from an electric potential of 0 V to a potential of 18 V is 18 nJ (Option f).
When moving a charge in an electric field, the work done can be calculated using the formula W = qΔV, where W is the work done, q is the charge, and ΔV is the change in electric potential.
In this case, the charge is[tex]0.36V * 1600 kg/m^3 = 0.36 * 0.088 m^3 * 1600 kg/m^3 = 88 kg.[/tex]) and the change in potential is 18 V. Plugging these values into the formula, we get[tex]W = (1 × 10^-9 C)(18 V) = 18 × 10^-9 J = 18 nJ.[/tex]
Therefore, the correct answer is option f. No other options accurately represent the work required to move the charge in this scenario.
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The velocity of a car Travelling in the positive direction decreases from 36 m/s to 28 m/s in four seconds what is the average acceleration of the car in this process
A model rocket has an acceleration of 12 m/s2. A net force of 18 N is acting on the rocket. What is the mass of the rocket? its a select answer, the answers are A. 30 kg B. 6.0kg C. 1.5 kg and finally D. 0.67 kg
Answer:
C.) 1.5 kg
Explanation:
Start with the equation:
[tex]F_n_e_t=ma[/tex]
Plug in what you know, and solve:
[tex]18=m(12)\\m=1.5kg[/tex]
Find matching soluation:
C.) 1.5 kg
Answer:
1.5 kg
Explanation:
A bicyclists travels with an average velocity of 15 km/h north, for 20 minutes. what is his displace mm end in km?
what is the first letter of the alphabet?
A:B B:A
C:Z or D:D
Answer:
B:A
Explanation:
because the alphabet goes
A B C D E F G
Answer: B.) A
This was a little complicated because of the answer letters LOL
A ball that weighs 20 N has 40 J of potential energy relative to the ground. What is its height?
Answer:
2m, or 2 meters.
Determine the height h of water that will support 1atmosphere pressure (Hint: 1 = = ).
Answer:
Just Keep Scrolling You'll See My Answer
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A very long time after the circuit is connected, when the capacitor is fully charged, the charge on the capacitor is
