Answer:
20 m
Explanation:
Initial potential energy = final kinetic energy
mgh = 1/2 mv²
gh = 1/2 v²
h = v² / (2g)
Given v = 20 m/s and g = 10 m/s²:
h = (20 m/s)² / (2 × 10 m/s²)
h = 20 m
Answer: Gravity
Explanation:When the only force acting on an object is gravity, so no air resistance. the constant speed that a freely falling object eventually reaches when the resistance of the medium through which it is falling prevents further acceleration.
Answer:
this is an example of Newton's Second Law, acceleration happens when a force acts on a mass.
the force that makes the bicycle move is your foot pushing against the pedal
Yes we can run almost three lakhs of the grandfather clocks to run a single light bulb .
<u>Explanation:</u>
- Yes we can run almost three lakhs of the grandfather clocks to run a single light bulb .
- In simple words, power can be defined as the work done by the time and the SI unit of the power is Joules per second.
- For example in the case of the light bulb, the Incandescent light bulb takes 60 watts per hour.
- For example in the case of the clocks, the modern clocks use between 1 and 2 watts power.
Compounds
Chemically combined
Fixed proportions
Components change properties
Both
Made of elements
2 or more component
Mixtures
Physically combined
Variable proportions
Components retain properties
Hope this helps!
