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
Karolina [17]
3 years ago
7

A 4-kg cat is resting on a bookshelf that is 2 m high. What is the cats gravitational potential energy relative to the floor if

the acceleration due to gravity is 9.8m/s^2?
a. 6 J
b. 8 J
c. 20 J
d. 78 J
Physics
1 answer:
ra1l [238]3 years ago
3 0
The most exact answer is 78.4J also in this kind of options we can say answer "d"
You might be interested in
What is the speed of a wave that has a frequency of 45hz and wavelength of 0.1 meters?
Degger [83]
The answer of speed is 4.5m/s
3 0
3 years ago
How do scientist use information about an object or event
Arlecino [84]
Many ways for example they look up related things and study them or they can test it and see what happens
4 0
3 years ago
The Sl unit for speed is
34kurt

Answer:

m/s (meters per speed)

Explanation:

4 0
3 years ago
12 POINTS PLEASE HELP.
bazaltina [42]
<span>Are programs that basically want to publicize the lives of other people sopadamente to help them</span>
3 0
3 years ago
Even when shut down after a period of normal use, a large commercial nuclear reactor transfers thermal energy at the rate of 150
Sever21 [200]

Answer:2.89\approx 2.9^{\circ}C/s

Explanation:

Given

Power\left ( P\right )=150 MW

mass of core\left ( m\right )=1.60\times 10^5 kg

Average specific heat \left ( C\right )=0.3349 KJ/kg^{\circ}C

And rate of increase of temperature =\frac{\mathrm{d}T}{\mathrm{d} t}

Now

P=mc\frac{\mathrm{d}T}{\mathrm{d} t}

150\times 10^6=1.60\times 10^5\times 0.3349\times \frac{\mathrm{d}T}{\mathrm{d} t}

Thus \frac{\mathrm{d}T}{\mathrm{d} t}=[tex]\frac{1.60\times 10^5\times 0.3349}{150\times 10^6}

\frac{\mathrm{d}T}{\mathrm{d} t}=2.89\approx 2.9^{\circ}C/s

6 0
3 years ago
Other questions:
  • A student uses an electronic force sensor to study how much force the student’s finger can apply to a specific location. The stu
    12·2 answers
  • The atomic model that describes an atom as a spherical object containing a certain number of electrons trapped in a mass of posi
    7·2 answers
  • I need help now please help me
    12·1 answer
  • 1:a boy 2 a girl pulling a heavy crate at the same time w/10 unite of force each.What is the net force acting on the object
    5·1 answer
  • Potential energy increases with the greater height mass of an object.True or False
    14·1 answer
  • A truck is traveling at 74.5 kilometers per hour away from you. The driver is blowing the horn which has a frequency of 415 Hz.
    9·2 answers
  • When a charged particle moves along a helical path in a uniform magnetic field, which component determines the pitch of the path
    10·1 answer
  • A student uses the right-hand rule as shown. an illustration with a right hand with fingers curled and thumb pointed up. what is
    15·1 answer
  • Match the type of boundary with its characteristic.
    15·1 answer
  • Part H)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!