1. Calculate the kinetic energy of a moving object, its mass = 100 kg, and its velocity = 12 m/s.

Can the sum of the magnitudes of two vectors ever be equal to the magnitude of the sum of the same two vectors? If no, why not? If yes, when?

What atoms of a specific element that have the same number of protons but a different number of neutrons are called:?

Which statement does NOT explain the concept of the Doppler Effect? A) As an observer approaches a stationary sound, the sound waves are compressed, making the pitch higher.

The force of repulsion between two like-charged particles will increase if A) the distance between the charged particles is increased. B) the distance between the charged particles is decreased.

A pitcher notices pain in his elbow during warm up since pitching a ball is a repetitive motion which injury is he most likely to have

A group of organ systems that work together make up a (n) tissue organism organ cell

Different constellations are visible at different times of the year because of A) the relative motion between earth and the sun B) the relative motion between earth and the moon C) the celestial equator D) the celestial sphere

Why does alternating current change direction 50 to 60 times per second?

Tony uses the device shown in the diagram to model how an electromagnet is used in his uncle's scrap metal yard.

A flight attendant pulls a 60.0 N flight bag a distance of 239.0 m along a level airport floor at a constant speed. A 21.0 N force is exerted on the bag at an angle of 66.0 degrees above the horizontal. How much work is done on the flight bag?