A 50 kg box is at rest on a horizontal surface. When an 80 N force is applied to the box, it slides on the surface with a constant velocity. How will the force of friction change if an identical box is placed on top of the 50 kg box
A car moving at 4.5 m/s accelerates at 2.5 m/s2 (The two is squared) After 7s, it will be moving how fast?
Running for his life, Riley travels 100m in 9.83s. What was his average velocity in "m/s" and "km/h"?
Conduction is usually faster/slower in liquids and certain solids than in gases. Materials that are good conductors of thermal energy are called......... Metals are excellent/poor thermal conductors. Please help me?
A 0.160 kg ball attached to a light cord is swung in a vertical circle of radius 70.0 cm. At the top of the swing, the speed of the ball is 3.26 m/s. The centre of the circle is 1.50 m above the floor. Calculate the speed of the ball when the cord is 30.0̊ below the horizontal.
