If two materials are made from different kinds of atoms, what else should you expect to be different? a. the kinds of neutrons they have b. the properties they have c. the mass of their electrons d. the charge of their protons

A layer of oil (n = 1.45) floats on an unknown liquid. A ray of light originates in the oil and passes into the unknown liquid. The angle of incidence is 65.3 degrees, and the angle of refraction is 64.8 degrees.

If you live on the path of a jet stream, will the temperature get hotter or colder?

Bias Is a personal is very personal prefernce Or dislike of a particular idea based on personal beliefs instead of evidence True False

When deforestation occurs in an area, what immediate effect does this have on the water cycle? A) More water is returned to the atmosphere. B) There is less runoff water, but more transpiration.

How much potential energy does a 40-N medicine ball gain when it is lifted 5 m? Select one: a. 20 J b. 100 J c. 200 J d. 1,000 J

A moving small car has a head-on collision with a large stationary truck 7.3 times the mass of the car. Which statement is true about the direction of the car after the collision if the collision is elastic?

In a ballistic pendulum experiment, projectile 1 results in a maximum height h of the pendulum equal to 2.0 cm. A second projectile causes the the pendulum to swing higher, to h2 = 5.5 cm.

Uncharged Particle A. Neutrons B. Protons C. Electrons D. Molecule

What fuel (s) are the main energy source during short, intense bursts of exercise? Metabolism of protein only Metabolism of fat only Metabolism of carbohydrate only Carbohydrates and vitamins Caffeine Medium-chain triglycerides Erythropoietin

A man of mass 60kg climbs up a 20m long staircase to the top of building 10m high. What is the work done by him