Potential energy due to gravity = Ep = mgh [symbols have their usual meaning ]
Evidently, HALVING the mass will make Ep , HALF its previous value. So, It will be halved.
Answer:
S = 40.8m
Explanation:
<u>Given the following data;</u>
Initial velocity, u = 2m/s
Acceleration, a = 1.6m/s²
Time, t = 6secs
Required to find the displacement
Displacement, S = ?
The displacement of an object is given by the second equation of motion;

Where;
- S represents the displacement measured in meters.
- u represents the initial velocity measured in meters per seconds.
- t represents the time measured in seconds.
- a represents acceleration measured in meters per seconds square.
<em>Substituting into the equation, we have;</em>


S = 40.8m
<em>Therefore, the displacement of the skateboarder during this game is 40.8 meters. </em>
Brushes, battery terminals, commutator, armature, magnets
the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion.
Answer:
402 J/(kg ⁰C)
Explanation:
m = mass of the sample = 80.0 g = 0.080 kg
T₀ = Initial temperature of the sample = 25 ⁰C
T = Final temperature of the sample = 225 ⁰C
W = Amount of work done by the system = 346 J
U = Increase in internal energy = 6085 J
Q = Amount of heat given to the gas
Amount of heat is given as
Q = U + W
Q = 6085 + 346
Q = 6431 J
Heat received by sample is given as
Q = m c (T - T₀ )
inserting the values
6431 = (0.080) c (225 - 25)
c = 402 J/(kg ⁰C)