Which type of electromagnetic wave enables skin cells to produce vitamin D

How can the actions of people affect runoff and absorption in a positive way?

A particle moves along the x axis according to the equation x = 6t², where x is in meters and t is in seconds. Therefore: A. the acceleration of the particle is 6 m/s² B. t cannot be negative C. the particle follows a parabolic path D.

What happens to shapes that break the rules

A 5.5 kg box is pushed across the lunch table. The acceleration of the box is 4.2 m/s2. What was the net force applied to the box?

How many Newtons of force are required to stop a truck 2250 kg

Build a relationships during your career exploration is called

How does gravity affect projectile motion?

A 68kg man is carrying a box with a mass of 7 kg what is the weight of the man and the box together

What does Newton's third law say about why momentum is conserved in collisions? 1. Equal forces act for unequal times, so the change in momentum for both objects must be equal. 2.

A notebook sitting on a desk has 19 j of potential energy. What is the total mechanical energy of the notebook?