Which of the following numbers most closely represents the number of galaxies in the universe?

A) hundreds

B) thousands

C) millions

D) billions

The ability of a muscle group to exert sub-maximal forces against a resistance over numerous contractions is called A. muscle endurance. B. muscle overload. C. muscle progression. D. muscle strength.

Light from a lamp is shining on a surface. how can you increase the intensity of the light on the surface?

What's the unit for mass

How does increasing the resistance affect the current

Which of the formulas represents anonpolar molecular?

A 1,492.3-kg airplane travels down the runway. Each of its four engines provides a force of 1,447.5 N. Find the acceleration of the airplane, in m/s2. (Ignore friction.)

A 0.42 kg football is thrown with a velocity of 17 m/s to the right. A stationary receiver catches the ball and brings it to rest in 0.017 S. What is the force exerted on the receiver? Answer in units of N

When Little Albert was conditioned to be afraid of the white mouse, he also became afraid of stuffed animals, other furry things, and even Santa Claus. These learned behaviors demonstrated the phenomenon of Select one: A. extinction X B.

An object floats in liquid of density 1.2*10kgm/3 with one quarter of its volume above the liquid surface. Determine the density of the object

In cloud formation, water vapor turns into water droplets which get bigger and bigger until it rains. This will cause the temperature of the air in the clouds to: a. get warmer. b. get cooler. c.