a. The direction of the stone's velocity changes as it moves around the circle.
b. The magnitude of the stone's velocity does not change.
d. The change in direction of the stone's motion is due to the centripetal force acting on the stone.
Above given are true for the given situation.
<u>Answer:</u> Option A, B and D
<u>Explanation:</u>
Circular motion may be characterized as the moving of an objects along the diameter of the circle or any circular direction. It may be standardized and non-uniform based on whether or not the rate of rotation is unchanged.
The velocity, a vector quantity is constant in a uniform circle motion speed is constant as its direction continues to change. Centripetal force works inward toward the core to counterbalance the centrifugal force from the center moving outward.
Answer:
c. Smaller than.
Explanation:
The energy stored in a capacitor is given as
E = 1/2CV²...................... Equation 1
Where E = Energy stored in a capacitor, C = capacitance of the capacitor, V = Voltage.
Also,
C = εA/d ......................Equation 2
Where ε = permitivity of the material, A = cross-sectional area of the plate, d = distance of separation of the plate.
substitute equation 2 into equation 1
E = 1/2εAV²/d ................. Equation 3
From equation 3 above,
The energy stored in a capacitor is inversely proportional to the distance of separation between the plates.
Hence when the plate is pulled apart by a distance D (D>d) The energy stored in the capacitor will be smaller.
The right option is c. Smaller than.
Answer: set up proportions
Explanation:
Answer:
accelerate / increase speed OR decelerate / decrease speed OR stop B1
change direction / move in a curve o.w.t.t.e
Explanation:
accelerate / increase speed OR decelerate / decrease speed OR stop B1
change direction / move in a curve o.w.t.t.e
