A student adds solution "X" to a beaker of water, instantly the student notices that the beaker becomes warm to the touch. Which of the following best describes the type of reaction the student witnessed?

Describes at least three everyday things that exist or occur because of science

Work is the product of force and an object's A. time B. momentum C. displacement D. space

A 1500 kg car originally moving at 10 m/s crashes into a wall and comes to rest in 0.25 s. What is the magnitude of the impulse given to the car? a. 37.5 kg m/s b. 150 kg m/s c. 15,000 kg m/s d. 60,000 kg m/s

What is the SI unit of pressure? A. g/cm3 B. the pascal C. the newton D. m/s2

calculate the initial acceleration of a 52.2 g, 24.0 cm long wire which carries a current of 0.750 A, if the wire is exposed to a magnetic field of 0.800 T.

What is the volume of a box that is 12 cm long, 2 cm wide, and 3 cm high?

Suppose a child drives a bumper car head on into the side rail, which exerts a force of 4000 N on the car for 0.200 s. (a) What impulse is imparted by this force?

If a soundproof door is almost shut but still leaves a small opening, what wave phenomenon is responsible for someone being able to hear sound from the room while standing by the wall to the side of the opening?

What happens to the force of gravitational attraction if the distance between two objects increase?

How are molecules in a neutral state different from ions?