Answer:
Explanation:
The equation of equlibrium for the box is:
The formula for the acceleration, given in , is:
Velocity can be derived from the following definition of acceleration:
The speed after the box has travelled 17 meters is:
Answer: False but read why
Heated water molecules expands ( become less dense) but they do float to the top.
Answer:
Explanations:
The capacitance, C = 4.50 μF
The charge, Q = 15.0 μC
The relationship between the capacitance (C), charge (Q), and the potential difference (V) is given as:
Q = CV
Substitute C = 4.5 and Q = 15 into Q = CV
15 = 4.5V
V = 15/4.5
V = 3.33 Volt
The potential difference required is
Turning on a light switch converts mechanical energy to electrical and radiant energy. So Mechanical energy
Answer:
While the Applied Force (force exerted) is decreasing, the velocity is decreasing
Explanation:
From Newton's second law of motion, which states that the rate of change of linear momentum is directly proportional to the applied force, and takes place in the direction of the applied force.
Momentum (P) = MV
Thus, F ∝ MV/t
where;
F is the applied force
M is the mass of the object
V is the velocity of the object
From the equation above, force is directly proportional to the velocity of the refrigerator (F∝V). That is, as the applied force is decreasing, the velocity is decreasing and vice versa.
Therefore, while the Applied Force (force exerted) is decreasing, the velocity is decreasing.