Work is being done in which of these situations? All motions are at a constant velocity (including velocity = zero).
2 answers:
Work is done only when there is a displacement of the object on which a force is applied in the direction of the force.
Answer:
Work is done only when there is a displacement of the object on which a force is applied in the direction of the force.
Explanation:
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Answer:
it gets hot and more hot until it turns to gas
Explanation:
Answer:
Explanation:
4.95s≈5s
Use equation :
h=G*t²/2
h=120m ----hight of cliff
G=9.81m/s²
t=?
-----------------------
h=G*t²/2
120m=9.81m/s²*t²/2
240m=9.81m/s²*t²
t²=240m/ 9.81m/s²
t²=24.46s
t=√24.46s²
t=4.95 s≈5s
Answer:
(A) Visible
Explanation:
- The section of the electromagnetic spectrum that humans can generally see is called visible light.
White light is visible light and the range of visible wavelengths ranges from 400 - 700 nanometers.
Answer:1.5
Explanation:
Given
mass of first cart 
initial Velocity 
mass of second cart 
In the absence of External Force we can conserve momentum
Final kinetic Energy of two masses
Initial Kinetic Energy
Answer:
<h2>320</h2>
Just use F =ma where m is mass and a is acc.
