Why does heat energy always move from a higher temperature to a lower temperature?

How do randomly moving molecules cause pressure to be exerted on a surface?

Buddhist monks who created Karate came from here

Jo lifts a 330 N cement block 3.6 m (using a system of pulleys) by pulling 16 m of rope with a force of 121 N. a. What is the mechanical advantage of the pulley system? b. What is the work input? c. What is the work output? d.

Jake boils some water to make a cup of tea. He uses a 5 kW kettle that takes 2 minutes to boil the water. a) Calculate how much energy Jake used, in kWh, to boil the water. Show your working.

A center lane with solid and broken yellow lines that is used by vehicles making left turns in both directions is called a

If the mass of a material is 48 grams and the volume of the material is 8 cm^3, what would the density of the material be?

Your family is moving to a new house. While lifting the box 1.5 m straight up you exerted a force of 200 N for 1 second. How much work is required?

Which best describes oil and water

Both the electrical force and the gravitational force between two objects share which relationship? They are directly proportional to mass. They are inversely proportional to the square of the distance. They are inversely proportional to charge.

During a baseball game, a player hits a a ball with a speed of 43m/s at an angle of 25∘ above the horizontal. When the player hit the ball, it was 1m above the ground, and after the hit, the ball flies straight toward the center field fence.