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
dolphi86 [110]
3 years ago
7

A book starts on a shelf 1 m off of the ground. You then move the book to a higher shelf that is 3 m off of the ground. If the s

ystem gained 20 J of gravitational potential energy, what is the mass of the book?
Physics
1 answer:
JulsSmile [24]3 years ago
4 0

Answer:

Using g = 9.8: 1.02 kg, Using g = 10: 1 kg

Explanation:

E = mgh

20 = m(9.8)(3 - 1)

20 = 9.8m(2)

20 = 19.6m

m = 1.02 kg

I'm now assuming you may be using a g constant of 10, thus the close integer result, in which case the mass would be exactly 1 kilogram.

You might be interested in
Select the correct answer.
Morgarella [4.7K]
D all of them is the answer. All three can be used to celebrate sporting events
3 0
2 years ago
What is the moment of inertia of a disc of mass 5kg and radius 10cm?
vodka [1.7K]

Answer:

500

Explanation:

6 0
3 years ago
Read 2 more answers
Under which condition would time periods of daylight and darkness be equal everywhere on Earth all year? A. if Earth revolved ar
Marizza181 [45]
The correct answer is
<span>B. if Earth rotated on an axis that was not tilted with respect to Earth's orbit 

In fact, the fact that Earth's axis is tilted is the reason why the durations of day and night are different in every part of the Earth. If the axis was not tilted, we would have exactly 12 hours of day and night in every point of the Earth, for the whole year.</span>
7 0
3 years ago
Read 2 more answers
What is kinematics ??<br>how do we spell it ?? <br>don't spam !! xD ​
34kurt

Answer:

Kinematics is the study of motion.

6 0
2 years ago
Read 2 more answers
How are gas particles arranged in a container?
joja [24]

Answer:

3. Tightly Packed

Explanation:

Hope this helps

I learned this

4 0
3 years ago
Read 2 more answers
Other questions:
  • If a bowling ball rolls 12 meters in 2.2 seconds what is the speed ?
    6·1 answer
  • What are three examples of a chemical change in matte
    15·1 answer
  • The change in electric potential energy per unit charge is
    9·2 answers
  • What is the maximum efficiency of a heat engine whose operating temperatures are 590 ?c and 325 ?c?
    12·1 answer
  • Which identifies that a chemical reaction has occurred?
    9·1 answer
  • A florescent light tube usually contains what?
    7·1 answer
  • 1. What do you think determines the type of traits you inherit?
    10·1 answer
  • Please help need to know ASAP.
    10·2 answers
  • In recent years, astronomers have found planets orbiting nearby stars that are quite different from planets in our solar system.
    10·1 answer
  • Please help I need help I can’t fail .
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!