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
kompoz [17]
3 years ago
11

A sprinter has a mass of 80kg and a kinetic energy of 4000 j. What is the sprinter's speed

Physics
1 answer:
JulijaS [17]3 years ago
4 0
The formula of the kinetic energy is KE = 0.5*m*v^2.
Given m = 80 kg and KE = 4000 J,
4000 = 0.5*80*v^2
v^2 = 100
v = 10 m/s
You might be interested in
Reflection off of a smooth surface like a mirror is an example of diffuse reflection.
Akimi4 [234]

Answer:

true

Explanation:

Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. ... This is called diffuse reflection. Diffuse reflection is when light hits an object and reflects in lots of different directions.

8 0
3 years ago
Read 2 more answers
Which is belief held by sociologists who work from a social-conflict perspective
Ksju [112]
Some social patterns are helpful, while others are harmful.
7 0
3 years ago
Read 2 more answers
А<br> is a push or pull.
guajiro [1.7K]

Answer:

A

Explanation:

ignore this on...............................

7 0
3 years ago
What color is reflected off of most plant leaves?
serg [7]
Green is reflected off of most plant leaves.
3 0
3 years ago
Read 2 more answers
Which condition is a neuron in when the outside of the neuron has a net positive charge and the inside has a net negative charge
White raven [17]
The condition is a neuron in when the outside of the neuron has a net positive charge and the inside has a net negative charge (due to accumulation of more sodium ions) is C. resting potential. T<span>he </span>resting membrane<span> </span>potential<span> of a </span>neuron<span> is approximately -70 mV (mV=</span><span>millivolt)</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • Objects in free fall near the surface of the earth accelerate downward at what rate
    6·2 answers
  • A student lifts a set of books off a table and places them in the upper shelf of a book case which is 2 meters above the table.
    14·2 answers
  • The combustion of a single molecule of methane produces about 10 ev of energy. a methane molecule has a mass of 16 amu. the fiss
    13·1 answer
  • A person uses a constant force to push a 14.0 kg crate 1.80 m up a frictionless 10⁰ incline and to also increase its speed from
    14·1 answer
  • Need help with physics! Please provide explanation.
    12·1 answer
  • Please need help on this
    14·1 answer
  • Drag the tiles to the correct boxes to complete the pairs. Match each form of energy to its description. motion energy thermal e
    10·2 answers
  • Global winds move warm air toward the _____.
    6·2 answers
  • A 5592 N piano is to be pushed up a(n) 3.79 m frictionless plank that makes an angle of 30.1 ◦ with the horizontal. Calculate th
    6·2 answers
  • What evidence supports the fact that this image is of a trial? Check all of the boxes that apply. The women are pointing. The wo
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!