The block in the figure below has a mass of 6.0 kg and it rests on an incline of angle . You pull on the rope with a force F = 37 N. Assume the incline is smooth and determine the angle of the incline if the block moves with constant speed.

Give one example to show that when substances are mixed, it may result in a chemical or a physical change depending on the conditions.

The horizontal blue line through the middle of the lens is called the optical axis. as the lamp is moved above or below the axis, keeping the horizontal distance to the center of the lens constant, how does the horizontal distance from the lens to the image change?

What is the specific heat of wood ?