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
Effectus [21]
4 years ago
8

A rock is at the top of a 20 meter tall hill. The rock has a mass of 10kg. How much potential energy does it have?

Physics
1 answer:
Mnenie [13.5K]4 years ago
7 0
Gdfgffggfdgdfgfdgfggfggfgfgfgfgfffdfdffgg
-Brainly support team (Klara academic DEPT.)Spam words mean team is having trouble determining the question CONTACT For support.
You might be interested in
A gas is compressed at constant temperature from a volume of 5.68 L to a volume of 2.35 L by an external pressure of 732 torr. C
Vlada [557]

Answer: The work done in J is 324

Explanation:

To calculate the amount of work done for an isothermal process is given by the equation:

W=-P\Delta V=-P(V_2-V_1)

W = amount of work done = ?

P = pressure = 732 torr = 0.96 atm    (760torr =1atm)

V_1 = initial volume = 5.68 L

V_2 = final volume = 2.35  L

Putting values in above equation, we get:

W=-0.96atm\times (2.35-5.68)L=3.20L.atm

To convert this into joules, we use the conversion factor:

1L.atm=101.33J

So, 3.20L.atm=3.20\times 101.3=324J

The positive sign indicates the work is done on the system

Hence, the work done for the given process is 324 J

5 0
3 years ago
A car increases its speed from 4.20 m/s to 8.60 m/s over 3.20 seconds. What is the car’s acceleration?
katrin2010 [14]

Answer:1.375metre per second square

Explanation: acceleration=(final velocity-initial velocity)÷time

acceleration=(8.6-4.2)÷3.2

Acceleration=4.4÷3.2

Acceleration=1.375 metre per second square

5 0
3 years ago
If the two blocks are moving to the right at constant velocity, A. the horizontal force that B exerts on A points to the left. B
RSB [31]

Answer:

D. not enough information to decide

Explanation:

i dont understand >.<

7 0
3 years ago
The solid steel shaft AC has a diameter of 25 mm and is supported by smooth bearings at D and E. It is coupled to a motor at C ,
Degger [83]

Answer:

Maximum shear stress in region AB=1.04 MPa

Maximum shear stress in region BC=3.11 MPa

Explanation:

The explanation is attached in the attachments.

4 0
4 years ago
Gravity is affected by the ______
Alla [95]

C is the right answer :)

C. mass of the objects and the distance between two objects

4 0
4 years ago
Read 2 more answers
Other questions:
  • Urgent help for a physics exercise!
    7·1 answer
  • An elevator (mass 4850 kg) is to be designed so that the maximum acceleration is 0.0680g. What are the maximum and minimum force
    9·1 answer
  • What is the magnitude of the torque about the point where the beam is bolted into place?
    10·1 answer
  • You expend 1000 W of power in moving a piano 5 meters in 5 seconds. How much force did you exert?
    15·1 answer
  • What is the acceleration of a softball if it has a mass of 0.19 kg and hits the catcher's glove with a force of 4.75 N? Answer:
    14·1 answer
  • The atomic number of an element is also the number of
    13·1 answer
  • Sodium is a metal why​
    13·2 answers
  • How is the structure of an atom best described?
    10·2 answers
  • 2. Choose one food chain in the web. Name all the organisms in that chain. Start with the producer and end with the top-level co
    12·1 answer
  • Select the correct answer. Chloe is playing the flute some distance away from a crowd. If the atmospheric temperature is 15°C, w
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!