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

A) hundreds

B) thousands

C) millions

D) billions

How are electromagnetic waves different from all other waves

A 1kg block is pushed with an external force of 20 newtons then slows to rest after moving 3M if the coefficient of friction between the block and the table is. 5 what is the total work done by the block?

On a spring scale that measures force, a reading shows the force of an object to be about halfway between 7 N and 8 N. Which of the following would be the most accurate measurement for the force? Question 8 options: 0.0075 N 0.75 N 750 N 7.5 N

A medic applies a force of 65 n to a 0.02 m2 area that is bleeding. what pressure did she apply? answer in units of pa

A 57-kg box is being pushed a distance of 7.5 m across the floor by a force whose magnitude is 178 N. The force is parallel to the displacement of the box. The coefficient of kinetic friction is 0.19.

If the volume of a hot air balloon remains constant, what happens as the temperature of the air inside the balloon increases?

What is the correct formula for electrical power? l

Bernie drove home from a vacation in 1.5 hours. He traveled a total distance of 60 miles. What was his average speed in miles per hour

What advice a personal trainer most likely give u before a workout

An elevator supported by a single cable descends a shaft at a constant speed. The only forces acting on the elevator are the tension in the cable and the gravity. Which one of the following statements is correct? Group of answer choices A.