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
Contact [7]
3 years ago
7

A 20-kg rock sits atop a 30 meter cliff. How much potential energy does it have?

Physics
1 answer:
Brut [27]3 years ago
6 0
Gravitational potential energy ...

=  (mass) x (acceleration of gravity) x (height)

=  (20 kg) x (9.8 m/s²) x (30 m)

=   (20 x 9.8 x 30)  kg-m²/sec²

=   5,880 joules
You might be interested in
Pls help i have test
Luden [163]

Answer:

A. something pushes or pulls it to stop.

Explanation:

Newtons first law. hope this helps

8 0
3 years ago
Read 2 more answers
Gamma radiation is composed of neutrons and protons.<br> A. True<br> B. False
konstantin123 [22]

Answer:

false

Explanation:

7 0
3 years ago
You plug in an extension cord and you have to be very careful around electrical outlet. However you can handle his extension cor
IrinaVladis [17]
The second one because you don't get shocked by plugging in something you can get electricted by putting something thin in the outlet then it will send a shock to your hand
4 0
3 years ago
Read 2 more answers
How much time will it take a car travelling at 88 km/hr (55 mi/hr) to travel 500km
Elis [28]
<span>500 km x (1 hr/88 km) = 5.68 hrs</span>
4 0
3 years ago
the average velocity of a bus is 15 m/s. If it starts off going 15m north and then 20m south, how long will the bus ride take?
Readme [11.4K]
It’s going to be 34 miles
4 0
3 years ago
Other questions:
  • A student walks 24 m from her math class and then turns 90° and walks 10 m to her locker, which is directly north of her class.
    15·2 answers
  • A 1500 kg car is approaching a hill that has a height of 12 m. As the car reaches the bottom of the hill it runs out of gas and
    8·1 answer
  • Sandra's is riding a bicycle at 10.0 meters/second. She slows down to 2.0 meters/second in 10 seconds her acceleration is
    11·1 answer
  • If a truck is travelling east on a straight road and travels 100 meters in 25s what is the truck's velocity?
    8·1 answer
  • In American football how many points.... look at the pic
    10·2 answers
  • What happens to your behind when you sit for too long?
    7·2 answers
  • Using Newton's Second Law, can you explain why one of the major advancements in spaceflight was the development of strong cerami
    15·1 answer
  • How to calculate kinetic energy of a projectile at the highest point of a projectile?
    10·2 answers
  • PLEASEE GUYS HELP I BEG YOU
    6·1 answer
  • What force acts on all objects, all the time on Earth?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!