Answer:
The speed of the bus is 40 km/hr so this means the bus is travelling at a speed of 40 km per hour.
Answer:
14m/s
Explanation:
subtract initial velocity by final velocity
It is true because <span>Thermal expansion is the tendency of matter to change in shape, area, and volume in response to a change in temperature, through heat transfer. Temperature is a monotonic function of the average molecular kinetic energy of a substance. When a substance is heated, the kinetic energy of its molecules increases. Thus, the molecules begin moving more and usually maintain a greater average separation.</span>
Answer:
D. Cars have the same velocity at one instant of time between dots 4 and 5.
Explanation:
The two cars will eventually have the same velocity and it occurs between 4 and 5. Velocity is normally defined as displacement over time. This shows that a change in the value of either time or displacement will affect the value of the velocity. Thus, at a given time between the points 4 and 5, the two cars have the same value of velocity.
