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
Kaylis [27]
3 years ago
10

A 0.5 kg ball is thrown up into the air with an initial speed of 6 m/s . at what height does the gravitational potential energy

of the ball equal its initial kinetic energy?
Physics
1 answer:
Dima020 [189]3 years ago
8 0
Let's assume that the height from which the ball was thrown is 0 meters. Because energy is conserved, the initial energy is equal to the final energy:

PE_i + KE_i = PE_f + KE_f

The ball was thrown with an initial velocity, and we're assuming that the height from which it was thrown is 0, so initially, gravitational potential energy is 0 and kinetic energy is nonzero. At the peak of the ball's motion, velocity is going to be 0, but the height is nonzero, so the kinetic energy at the peak is going to be zero, but the gravitation potential energy is going to be nonzero. Because of the law of conservation of energy, we know then that the initial kinetic energy is going to be equal to the gravitational potential energy at the peak of the ball's motion:

KE=PE \\  0.5mv^{2}=mgh \\ 0.5v^{2} =gh \\  h=\frac{0.5v^{2}}{g} \\ h=   \frac{0.5(6)^{2}}{9.8} \\ h=1.8

So the ball's gravitational potential energy is going to equal its initial kinetic energy at a height of 1.8 meters.
You might be interested in
Earth’s surface is subjected to unusually high rates of weathering. The Moon and some of the inner planets of our solar system a
Komok [63]
<h2>Answer:</h2>

<em><u>Running water on the Surface of Earth.</u></em>

<h2>Explanation:</h2>

Weathering can be defined as the phenomenon of breaking or disintegration of the rocks, minerals, soil etc. due to coming in contact with the Earth's atmosphere such as the Water, Wind, Organisms etc.

In this process the rocks, minerals disintegrate into lot of small particles.

But the rate of weathering on Earth is at a very unusual or unique rate because Earth's surface has the presence of the running water that leads to the high rate of surface weathering.

<em><u>Therefore, the reason of Earth's rapid weathering rates is Running water on the Surface of Earth.</u></em>

<em><u></u></em>

3 0
3 years ago
What means 10² what we call this​
damaskus [11]

we call it as well as 100 . so easey

7 0
3 years ago
Read 2 more answers
Convert 13.6g/cm3 into kg/m3​
Wewaii [24]

Answer:

0.000136kg/m3

Explanation:

13.6 / 1000 = 0.0136kg/cm3

0.0136 / 100 = 0.000136kg/m3

5 0
3 years ago
A Carnot engine absorbs 1, 3 MJ of heat at 427 degree C and exhausts heat to a reservoir at 90 degree C. How much work does it d
Alex17521 [72]
<span>Carnot cycle efficiency = work done/heat supplied = (Th - Tc)/Th where, Th is temperature of hot reservoir and Tc is temperature of cold reservoir. we have given the values as Heat supplied = 1.3 MJ or 1300 KJ, Th = 427 degree C and Tc = 90 degree C. converting degree Celsius to kelvin temperatures, Th = 427 + 273 = 700 K Tc = 90 +273 = 363 solving equations, (700 - 363)/700 = work done / 1300 work done = 625.86 KJ i.e. 0.626 MJ work is done .</span>
5 0
3 years ago
Find the current in the 12 ohm resistor.
disa [49]

Answer:

1.5 A

Explanation:

V =I.R

18 = I × 12

I = 18/12

= 3/2 = 1.5 A

3 0
3 years ago
Other questions:
  • The proton is a hadron consisting of three quarks:
    7·1 answer
  • A slingshot fi res a pebble from the top of a building at a speed of 14.0 m/s. The building is 31.0 m tall. Ignoring air resista
    8·1 answer
  • if a diffraction grating produces a third-order bright spot for red light (of wavelength 650 nm ) at 68.0 ∘ from the central max
    5·1 answer
  • An upward force of 18 N is applied via a string to lift a ball with a mass of 1.5 kg.
    6·1 answer
  • Please need help on this
    15·1 answer
  • What is a four chord song??
    15·1 answer
  • If the force on an object is negative, what is known about the change in velocity?
    14·1 answer
  • What is the difference in moment and work?
    15·1 answer
  • Stephanie goes on a giraffe safari in Africa. She travels 8 km north, then 3 km west and then 2 km south.
    9·1 answer
  • an object is moving with constant velocity downwards on a frictionless inclined plane that makes an angle of
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!