Answer:
A thermos bottle works well because:
A) Its glass walls are thin
Answer:
20 cm
Explanation:
Given that a ball is released from a vertical height of 20 cm. It rolls down a "perfectly frictionless" ramp and up a similar ramp. What vertical height on the second ramp will the ball reach before it starts to roll back down?
Since it is perfectly frictionless, the Kinetic energy in which the ball is rolling will be equal to the potential energy at the edge of the ramp.
Therefore, the ball will reach 20 cm before it starts to roll back down.
Answer:
The plant would not reproduce because the flower uses the stigma to catch the pollen
<span>An example of the deregulation of a government regulated natural monopoly is where the new ;aw allows consumers to be able to choose between the electricity providers which is the first choice because a deregulation of a government regulated natural monopoly is a way of the rules of having to be remove or reduced when tackling or making use of the government regulated natural monopoly.</span>
Motion of a ball thrown by a person upwards and caught after some time is an example of motion in which displacement of the particle is zero but acceleration is not zero in journey.
The displacement of the ball is zero because the starting and end point of the motion are same, i.e, the person's hands.During its motion, the acceleration of ball is constant and non zero called as acceleration due to gravity, g= -9.8 m/s². The velocity of ball is continuously changing. It first decreases during the upward motion of the ball and then increases during the downward journey.The acceleration remains constant and non zero all the time.
