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
Anni [7]
3 years ago
12

A 1.7 kg book is lying on a 0.77 m -high table. You pick it up and place it on a bookshelf 2.0 m above the floor. how much work

does gravity do on the book?
Physics
1 answer:
luda_lava [24]3 years ago
4 0
You are given the mass of the book with an initial height of 0.77m. You are also given the final height of the book, 2m above the floor. The problem requires you to find the work done on the book. It is said that work is equal to force times distance. And that force is equal to mass times acceleration due to gravity.
W=Fd
W=mgd=mgh
W=(1.7kg)(9.8m/s^2)(2m-0.77m)
W=20.49J
<span>The work is equal to 20.49J.</span>
You might be interested in
Does a comets tail always trail along behind it in its orbit?
Marat540 [252]
No, it only does when entering an atmosphere
4 0
3 years ago
Two formats of sources are
Scilla [17]

Answer:

APA and MLA are the two format sources.

Don't forget to keep me in top brainlist

3 0
2 years ago
Which of the following statements is true?
xenn [34]

Correct answer choice is :


C) The freezing and melting temperatures of a substance are the same.


Explanation:


Fluids have a particular temperature at which they convert into solids, identified as their freezing point. In theory, the melting point of a solid should be the same as the freezing point of the liquid. In practice, small variations among these measures can be seen. The freezing point of a matter is the same as that substance's melting point. At this distinct temperature, the substance can exist as either a solid or a liquid. At temperatures below the freezing/ melting point, the substance is a solid.


4 0
3 years ago
Read 2 more answers
The number of confirmed exoplanets is (a) less than 10; (b) roughly 50; (c) more than 500; (d) more than 5000.
Bad White [126]

Answer:

(c) more than 500

Explanation:

Until 2019, more than 3000 planetary systems have been discovered that contain more than 4000 exoplanets, since some of these systems contain multiple planets. Most known extrasolar planets are gas giants equal to or more massive than the planet Jupiter, with orbits very close to its star.

8 0
2 years ago
Long periods of unusually low precipitation are called?
DiKsa [7]
I think it is called a drought but i would look it up
6 0
3 years ago
Other questions:
  • Twenty students were surveyed to find out how many hours of tv they watch during a school week
    9·1 answer
  • Do cars get better gas mileage with clean air filters? Gas mileage for 10 cars with dirty air filters and clean air filters was
    14·1 answer
  • The Nichrome wire is replaced by a wire of the same length and diameter, and same mobile electron density but with electron mobi
    7·2 answers
  • Please help!!! These questions are about specific heat capacity.
    13·1 answer
  • Which property of potential energy distinguishes it from kinetic energy?
    7·2 answers
  • On a timer !
    6·2 answers
  • 1. An elevator is moving up at a constant velocity of 2.5 m/s, as illustrated in the
    9·1 answer
  • 1. The nearest distance of distinct vision of
    13·1 answer
  • Two objects are placed 3 meters apart. If they were moved, at what distance would the NEW gravitational force be about 1/4 of th
    11·1 answer
  • 1. Ignore friction and determine an expression for the distance d the boxes travel before coming to rest. Choose the floor as th
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!