What is the fundamental property of matter that can either be positive or negative?

Shelly rolls ball A in the positive x direction with a velocity of 7.5 meters/second. It hits stationary ball B and they undergo elastic collision. The two balls have different masses. Which of the following statements is true?

De la 2surse coerente aflate la distanta d=2 metri una de alta se propaga intrun mediu elastic unde cu viteza = 340 m/s.

A car driving on the turnpike accelerates uniformly in the positive x direction from 80 ft/s (54.5 mph) to 103 ft/s (70.2 mph) in 3.10s. What is the x - component of the car's acceleration?

What is the momentum of a. 005kg bumble bee that is traveling at a velocity of 3.0m/s?

What portion (division) of a meter stick is a centimeter?

What does the sun consume to produce energy and helium?

What is the weight of an object on earth that has a mass of 45 kg

Why does an object's mass and speed cause it to have kinetic energy?

Eratosthenes used what object to determine the size of Earth? A) Pyramids in Giza, B) Tower in Babel, C) Sphinx in Alezandria, D) Well in Alexandria

A major process by which the Sun's energy is transported around the Earth system?