A scientific hypothesis can become a theory if ...

Why is having a scientific model of an Atom important

The cable of a hoist has a cross-sectional area of 80 mm2. The hoist is used to lift a crate weighing 500 kg. The free length of the cable is 30 m. Assume all deformation is elastic. (a) What is the stress on the cable?

In a stadium, fans stand up and sit down to produce a wave across the stadium. This type of wave where the material travels perpendicular to the direction of travel of the the wave. Which type of wave does this describe?

How do u convert from Celsius to Kelvin

Tina rolls a ball across the floor. What type of force is acting upon this ball? A. gravity B. friction C. push (applied) D. all of these

Consider what happens at the moment when the block leaves the surface of the globe. Which of the following statements are correct? - The net acceleration of the block is directed straight down.

A mechanic pushes a 3.00 ✕ 103-kg car from rest to a speed of v, doing 4,680 j of work in the process. during this time, the car moves 26.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.

Explain how latitude determines wind patterns

What is the difference between contact forces and forces that act through a force field?

Suppose two parallel-plate capacitors have the same charge Q. but the area of capacitor 1 is A and the area of capacitor 2 is 2A. 1.