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
Tpy6a [65]
2 years ago
8

A 4.0-kg object has 72 J of kinetic energy. Determine its speed.

Physics
1 answer:
Svetlanka [38]2 years ago
8 0

Answer:

6m/s

Explanation:

v = sqrt of 2KE/m

Where:

KE = kinetic energy

m = mass of a body

v = velocity of a body

= sqrt of 2(72)/4

= sqrt of 144/4

= sqrt of 36

= 6m/s

You might be interested in
The fluid friction that opposes the motion of objects through air is known as what?
PSYCHO15rus [73]
The answer is Air Resistance
6 0
4 years ago
A neutron star has more mass then what and is about the same size as what?
Alex_Xolod [135]
A neutron star has more mass than a bowling ball,
and is about the same size as Chicago.
5 0
3 years ago
What is the potential energy of a 25 kg bicycle resting at the top of a hill 3 m high? (Formula: PE = mgh)
Lisa [10]

Answer:

The answer would be 735J

Explanation:

PE=mgh

=(mass)(force of gravity)(height)

=(25kg)(9.8m/s^2)(3m)

=735J

8 0
3 years ago
Read 2 more answers
True or False
Allisa [31]
False?


science can be a motivation out of curiosity AND societal needs.

For example:battery operated  cars, are a curiosity and beneficial to the earths environment
4 0
3 years ago
Read 2 more answers
A 0.19 F capacitor is desired. What area must the plates have if they are to be separated by a 2.0 mm air gap? a= ?? m^2
Aliun [14]
.125 
Hope this answer helps you

4 0
3 years ago
Other questions:
  • A shield of material that reflects neutrons is placed around a radioactive sample.
    5·2 answers
  • What is the type of intermolecular force in methylated spirits
    15·1 answer
  • An ideal spring hangs from the ceiling. A 1.55 kg1.55 kg mass is hung from the spring, stretching the spring a distance ????=0.0
    7·1 answer
  • A roller coaster car rapidly picks up speed as it
    11·1 answer
  • A car is traveling at 50 mi/h when the brakes are fully applied, producing a constant deceleration of 24 ft/s2. What is the dist
    9·1 answer
  • How to solve the equation of power ?
    13·1 answer
  • How much power do you have if you do 3200 j of work in 18 seconds?
    6·2 answers
  • Which statement describes how the photoelectric effect causes an electric
    9·2 answers
  • One end of an elastic cord is fastened to a steel beam. A metal weight with a mass of 68 kg is attached to the other end of the
    5·1 answer
  • A 1100 kg racing car accelerates from rest at a constant rate and covers a distance of 50 m in 5 s. what is the car's accelerati
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!