What is a mirage? explain the under which it is seen.

Is it possible for a gas contained in a chamber to maintain a constant temperature while heat is being added to the gas? Explain why or why not.

Suppose a well-designed optical instrument is composed of two converging lenses separated by 14 cm. The focal lengths of the lenses are 0.60 and 4.5 cm. Is the instrument a microscope or a telescope

A double slit has a slit separation of 2.02 x 10-6 m, and the first bright fringe of a light is seen at an angle of 16.5º relative to the central maximum. what is this light's wavelength?

A boy sits motionless partway down a playground slide. The force of friction balances the force of gravity. A girl hands the boy a book. Why does the boy still not move? A. Holding the book does not effectively increase the mass of the boy. B.

Which of the following examples illustrates Newton's second law of motion? Question 4 options: Much less force is required to push an empty shopping cart than a full shopping cart.

A farmer had 15 sheep, and all but 8 died. How many are left?

While playing with her 5 year old cousin, a Physics 135 student pushed him forward on his scooter. She pushes with a force of 50 Newtons for 3.5 seconds. If the boy and the scooter together have a mass of 30 kg, what is their final velocity? a. 2.

3. A 120.0 V generator supplies 3.0 kw of power. How much current ca the generator deliver?

An apple drops from a tree and hits the ground in 1.5s what is its speed just before it hits the ground?

Sound travels slow in cold air. Why does the speed of sound depend on air temperature?