A soccer player applies an average force of 180N during a kick. The kick accelerates a 45kg soccer call from rest to a speed of 18 m/s. (a) What is the impulse exerted on the ball (b) What is the
collision time?​

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves