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
nirvana33 [79]
3 years ago
13

A rock has a mass of 25kg. The acceleration due to gravity is 10m/s and the height of the rock is 42 m. Find the potential energ

y of the rock
Physics
2 answers:
alisha [4.7K]3 years ago
7 0

Answer:

 The potential energy of the rock = 10.5 kN

Explanation:

 Mass of rock = 25 kg

 Acceleration due to gravity = 10 m/s²

 Height = 42 m

 Potential energy, PE = mgh, where m is the mass, g is acceleration due to gravity and h is the height.

 PE = 25 x 10 x 42 = 10500 N = 10.5 kN

 The potential energy of the rock = 10.5 kN

irina [24]3 years ago
7 0

Answer:

The answer is Potential energy is equal to 10500 Joules

Step by step Explanation:

1) Potential Energy is the energy that a body located at a certain height above the ground has.

2) The potential energy is expressed by the formula PE = mgh where (PE) is the potential energy (m) represents the mass, (g) represents the acceleration of gravity, and (h) represents the height.

3) Knowing this we can continue to replace the values given in the problem:

PE = (25Kg)(10m/s^2)(42m)

PE = 10500J

You might be interested in
While Sheila’s parents are at gymnastics lessons, Sheila decides to take their PT Cruiser out for a spin. She speeds up at a con
Over [174]

Answer: A.

It has to be A just from common knowldege.

7 0
3 years ago
Explain how the perfume atomizer works under Bernoulli's principle
ss7ja [257]

Answer:

In an atomizer, or perfume sprayer, you squeeze a rubber bulb to squirt air through a tube. Because of the Bernoulli principle, the air rushing through the tube has a lower pressure than the surrounding atmosphere. ... The perfume is pushed out of the tube and sprays into the air as a fine mist.

Explanation:

4 0
4 years ago
A 35-gram stainless steel ball on a track is moving at a velocity of 9 m/s. On the same track, a 75-gram stainless steel ball is
elena-s [515]

Answer:

4.2 m/s

Explanation:

Momentum is conserved.

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

(35 g) (9 m/s) + (75 g) (-7 m/s) = (35 g) (-15 m/s) + (75 g) v

315 g m/s − 525 g m/s = -525 g m/s + (75 g) v

315 g m/s = (75 g) v

v = 4.2 m/s

5 0
4 years ago
Read 2 more answers
What is an hypothesis??
egoroff_w [7]
An educated guess to something you should test over and over
8 0
4 years ago
Read 2 more answers
Lots of points and brainiest for first correct answer
sineoko [7]
That's the answer: I've attached the pic

7 0
3 years ago
Other questions:
  • Consider a circuit connected in parallel with three resistors, each providing a
    5·1 answer
  • Two particles with positive charges q1 and q2 are separated by a distance s. Along the line connecting the two charges, at what
    12·1 answer
  • If a 9 v battery is connected to a light bulb what is the potential difference across the bulb
    9·1 answer
  • What is the main characteristic that determines what element will fuse together in a star?
    14·1 answer
  • A person has power of 550 watt. What does it mean? ​
    15·1 answer
  • List at least types of motion​
    9·2 answers
  • A plane starts from rest accelerates to 40 m/s in 10 seconds. How far did the plane travel during this time?
    12·1 answer
  • The key differences between rotational kinematics and translational kinematics is: A. Rotational kinematics must specify an axis
    7·1 answer
  • Did it seem the Law of Reflection held for planar waves? How could you check to be sure?
    7·1 answer
  • What is the value of n in the balmer series for which the wavelength is 410.2 nm.?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!