1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
wariber [46]
3 years ago
8

If an object has 180 J of PE and a mass of .5kg, what is its height?

Physics
1 answer:
Nonamiya [84]3 years ago
7 0
PE=mgh
180=0.5*10*h
180=5h
h=180/5=36 m
You might be interested in
A box at rest is in a state of equilibrium half way up on a ramp. The ramp has an incline of 42° . What is the force of static f
olchik [2.2K]

Answer:

Explanation:

The force of static friction acting on the box is the frictional force;

Frictional force Ff = Wsin theta (force acting along the ramp)

W is the gravitational force known as the weight

Ff = 112.1sin42°

Ff = 112.1(0.6691)

Ff = 75.00N

Hence he force of static friction acting on the box  if box has a gravitational force of 112.1 N id 75.00N

4 0
3 years ago
Select the correct answer. G = 6.67 × 10-11 N·m2/kg2 Me = 5.598 × 1024 kg What is the velocity of an Earth satellite that is in
zzz [600]
Centripetal force of satellite = gravitational force between earth and the satellite
(m•v^2)/r = (G•Me•m)/r^2
v^2 = (G•Me)/r
v^2 = 6.67x10^-11 x 5.598x10^24 / 7.5x10^7
v = 2231 m/s

so answer is B
7 0
4 years ago
the two forces acting on a falling object are gravity and?....1.force, 2. friction, 3. air resistance, and 4. net force?​
Vsevolod [243]
In free fall, the only force acting on an object is gravity. The force of gravity is an unbalanced force, which causes an object to accelerate. In the absence of air, two objects with different masses fall at exactly the same rate of acceleration.
6 0
3 years ago
A bicycle-cab driver takes two customers across the park. The driver exerts a constant force of 1,400 Newtons as he pedals the c
seraphim [82]
Power is the work performed divided by time in seconds.  The work is the force times distance:
W=Fd=1400*200=280000J

the time in seconds is 60*11+30=690s so the power is

P=\frac{280000J }{690s}=405.8W

So choice B
4 0
3 years ago
A car is traveling north at 17.7m/s After 12 s its velocity is 14.1m/s in the same direction. Find the magnitude and direction o
Nat2105 [25]

The car is initially traveling north at 17.7 m/s, and after 12 s, its velocity is 14.1 m/s, still due north. This means that the direction of the car has not changed, so we can already say that the direction of the acceleration is north (if the magnitude of the acceleration is positive) or south (if the magnitude of the acceleration is negative).

To find the magnitude of the average acceleration, we must calculate the ratio between the change in velocity and the time taken:

a=\frac{v_f -v_i}{t}=\frac{14.1 m/s-17.7 m/s}{12 s}=-0.3 m/s^2

Since the acceleration is negative, it means it is in the opposite direction to the motion of the car, therefore south. Therefore, the correct answer is

b) 0.30 m/s2, south

7 0
3 years ago
Other questions:
  • In the Roman soldier model for refraction, what happens to the first soldier who hits the muddy stream?.....HELP PLZ.... A. They
    9·1 answer
  • Using the information from Paul Hewitt's Conceptual Development Practice Page 25-1 and the image below, answer the following que
    14·1 answer
  • PLEASE SOMEONE ANSWER THIS
    12·2 answers
  • Noah drops a rock with a density of 1.73 g/cm cubes into a pond. Will the rock float or sink? Explain your answer.
    10·1 answer
  • A stone was projected at an angle of 40o and initial velocity of 20m/s. (a.)Determine the time of flight  (b)Maximum height.
    9·1 answer
  • You plug in an extension cord and have to be very careful around the electrical outlet. However, you can handle the extension co
    9·2 answers
  • If the s – t graph of a particle is parallel to the t – axis, the speed of the particle is (a) zero (b) constant (c) infinite (d
    5·2 answers
  • Lightning is formed when clouds
    9·1 answer
  • ____ crust forms the ocean floors
    8·2 answers
  • If the light is both wave and particle ..
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!