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
Paraphin [41]
2 years ago
9

Define energy and provide examples of potential and kinetic energy

Physics
1 answer:
In-s [12.5K]2 years ago
6 0

Energy is the capacity for doing work..

Kinetic energy - Moving car

Potential energy - flowing water up the hill

You might be interested in
A 5 kg ball takes 13.3 seconds for one revolution around the circle. What's the magnitude of the angular velocity of this motion
Tcecarenko [31]

Answer: 0.47 rad/sec

Explanation:

By definition, the angular velocity is the rate of change of the angle traveled with time, so we can state the following:

ω = ∆θ/ ∆t

Now, we are told that in 13.3 sec, the ball completes one revolution around the circle, which means that, by definition of angle, it has rotated 2 π rad (an arc of 2πr over the radius r), so we can find ω as follows:

ω = 2 π / 13.3 rad/sec = 0.47 rad/sec

6 0
3 years ago
Read 2 more answers
A child who is swimming toward shore at 0.78 m/s sees shark and picks up his speed
Gnoma [55]

Answer:

0.085m/s²

Explanation:

Use v²=v0²+2a(d)

solve for a

v²-v0²/2d=a

Plug in givens

1.89²-0.78²/2*17.5=a

Plug into calculator

a=0.085m/s²

3 0
3 years ago
Which career would be the best for someone who wants to work in entertainment but does not want to be in front of any type of au
GalinKa [24]

directing, your out of the spotlight

8 0
2 years ago
Read 2 more answers
Explain why 15yr old need more calcium than adults
Tom [10]

Answer:

When adolescents get enough calcium during the teen years, they can start out their adult lives with the strong bones and significantly reduce their risk for fractures as an adult. Inadequate calcium intake during adolescence and young adulthood puts individuals at risk for developing osteoporosis later in life.

8 0
2 years ago
Read 2 more answers
The best time to get my RESTING HEART RATE is right after I run.<br><br>true or false ​
Savatey [412]

Answer:

Your answer is: False

It is called a resting heart rate for a reason : )

Explanation:

Hope this helped : )

8 0
2 years ago
Read 2 more answers
Other questions:
  • A 49 kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is 0.7 m/s. The acceleration of
    7·1 answer
  • 1. The combination of all the forces on an object is called
    10·1 answer
  • An ideal spring is fixed at one end. A variable force F pulls on the spring. When the magnitude of F reaches a value of 49.8 N,
    14·1 answer
  • A mass resting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. It ta
    15·2 answers
  • A truck slows from a velocity of 34 m/s to a stop in 50 m. What was the<br> truck's acceleration? *
    8·1 answer
  • Distance from any point on a wave to an identical point on the next wave?
    13·1 answer
  • What is the current in a circuit with a 12.0 V battery and a 4.0 Ω resistor?
    14·1 answer
  • 6) A person with mass 50.0 kg, standing still, throws an object with mass 12.0
    9·1 answer
  • Can anyone solve this?
    8·1 answer
  • A major league baseball has a mass of 0.145 kg.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!