Answer:
25.0 N
Explanation:
Just took the test
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.
Learn more about design here: https://brainly.com/question/3778204
The weight of an astronaut plus his space suit on the Moon is only 310 N. How much (in N) do they weigh on Earth
Explanation:
Gravity on the Moon is 1/6 th of Earths gravity
weight on earth=310 N ×6
=1860 N
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.
2 A sensor uses 5*10-3A of current when it is operated by a 5.0-V battery. What is the resistance of the sensor circuit?
[tex]10^{3}Ω[/tex] or 1000 Ohms
Explanation:-
The relationship between current, voltage and resistance is given by Ohms Law.
[tex]V=IR[/tex]
where
V = Voltage
I = Current
R = Resistance
Now in our case, we are told that,
V = 5.0 V
I = 5×[tex]10^{ - 3}[/tex]amperes
Therefore, the above equation gives
[tex]5.0 = (5 \times {10}^{ - 3})R[/tex]
Dividing both sides by 5×[tex]10^{ - 3}[/tex] gives,
R = 5.0 ÷ 5×[tex]10^{ - 3}[/tex]
=> R = [tex]10^{3}Ω[/tex]
Hence, the resistance of the sensor circuit is [tex]10^{3}Ω[/tex] or 1000 Ohms
~ Benjemin360
A bicyclists travels with an average velocity of 15 km/h north, for 20 minutes. what is his displace mm end in km?
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 :)
A piece of rubber 10cm stretches 6mm when a load of 100N is hung from it.what is the strain
Answer:
Question:
A piece of rubber 10cm long stretches from 6mm when a load of 100N is hung from it. What is the strain?
Important Note (for solving your any problems):
In Physics to help for better understanding, it is important to write out
your given first.Given:
1. Original length = 10cm 2. Extension e= 6mm
3. The extension is meant to be in cm and to convert mm to cm, divide the number by 10.
Answer:
Strain = 0.6
Explanation:
Solution:
Remember that,
[10 mm = 1 cm]
6 mm = (6 × 1) ÷ 10
-
= 0.6 cm
Load (force) = 100N
Recall that,
Strain = (extension) Original length
Strain = 0.6 cm ÷ 10 cm
Strain = 0.06
If you convert to standard form,
0.06 = 6 x 10^-2
There is no unit because strain is a ratio of two lengths and they both have the same unit which cancels out during division.HOPE IT HELPS YOU #ITZADMIRERA 5kg ball held above the ground has 500 J of gravitational potential energy if the ball is allowed to fall how much velocity does it have just before hitting the ground
Answer:
This GPE calculator will find the missing variable in the physics equation for gravitational potential energy, when three of the variables are known.
Explanation:
<3
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
The range of a projectile is found by multiplying which two factors?
the horizontal velocity
the maximum height
the time of flight
the vertical velocity
ANSWER:
A & C
Explanation:
Range depends upon two factors, horizontal velocity and air time of the projectile. Since velocity was constant throughout the investigation, the only factor that had an impact upon the range is air time. Increasing the height means that the projectile has a greater vertical distance to travel.
Answer: the time of flight & the horizontal velocity
Explanation: I got the problem right!
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]
Learn more about beat frequency here: https://brainly.com/question/3086912
Determine the height h of water that will support 1atmosphere pressure (Hint: 1 = = ).
Answer:
Just Keep Scrolling You'll See My Answer
Hope Its Helps Bro:)
brainliest me
[tex]\red{ \rule{0pt}{100000pt}} \orange{ \rule{0pt}{100000pt}} \color{yellow}{ \rule{0pt} {100000pt}} \green{ \rule{0pt} {100000pt}} \blue{ \rule{0pt} {100000pt}} \purple{ \rule{0pt} {100000pt}}[/tex]
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.
HOPE IT HELPS
BRAINLIEST PLEASE
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 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
pls pls help i am in 8th grade k12 How is the temperature affected (increased or decreased) when the iron block is placed in the water?
a. the iron black (temp increase or decrease)
b. the water (temp increase or decrease)
Question 3 options:
Blank # 1
Blank # 2
Explanation:
the water temperature increase or decrease
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 force of 400.0N is exerted on a 1,250N car while moving it at a distance of 3.0m. How much work was done on the car?
Answer:
solution
force(f)=400N
distance(d)=3m
Now,
Work done =F x d
=400 x 3
=1200J
Explanation:
The work done on the car is 1,200 Joules.
Work (W) is calculated using the formula: W = force (F) × distance (d) × cos(θ), where θ is the angle between the force and the direction of motion.
Given:
Force (F) = 400.0 N
Distance (d) = 3.0 m
The angle between the force and the direction of motion is not given, so we assume that the force is applied in the direction of motion, making the angle θ = 0°. In this case, cos(0°) = 1.
Therefore, W = 400.0 N × 3.0 m × 1 = 1,200 Joules.
So, 1,200 Joules of work was done on the car to move it a distance of 3.0 meters with a force of 400.0 N in the same direction as the motion.
To learn more about work done, here
https://brainly.com/question/32263955
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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.
Learn more about net acceleration here: https://brainly.com/question/141388
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
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
Which Model represents a lithium isotope? Use your periodic table for this one!
Answer:-D
Answer:
The model D
Explanation:
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.
plz help me if it's okay :) and thank you
Explanation:
I am not sure that this answer will be correct
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.
Learn more about kinematics: https://brainly.com/question/25638908?
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.
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
If a battery stores 1000 C of charge, how many seconds will it power a lamp for if the current through the lamp is 5.0 A?
Answer:
200seconds
Explanation:
Q=IT
1000c=5T
T=1000/5
T=200secs
I hope this will help
kindly follow ne
highest speed car crash would survive
Answer:
It might be like 45-50 mph
Explanation:
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
Learn more on Speed, distance and time here: https://brainly.com/question/2681210
