Who first introduced the idea that the Sun is the center of the universe?

A. Nicolaus Copernicus

B. Albert Einstein

C. Johannes Kepler

D. Edwin Hubble

A car starts from rest and accelerates to 45.0 m/s in 15 seconds, after which it travels at a constant speed for 1.0 minute, and then comes to rest in 30 seconds. Calculate the acceleration of the car during the first 15 seconds.

What rice is the most popular rice in India.

Turner's treadmill starts with a velocity of -2.7 m/s and speeds up at regular intervals during a half-hour workout. After 33 min, the treadmill has a velocity of - 7.1 m/s.

The terminals of a battery are connected across two resistors in series. The resistances of the resistors are not the same. Which of the following statements are correct? a. The potential difference across each resistor is the same. b.

A sled is moving down a steep hill. The mass of the sled is 50 kg and the net force acting on it is 20 N. What must be done to find the acceleration of the sled? Check all that apply.

Explain why models are often used to study other planets.

The main factors that affect an area's temperature are prevailing winds and mountains. a. True b. False

What is the displacement of an object during a specific unit of time?

Is there an end of rainbow

A downhill skier was able to move 560 meters in 25 seconds. What is the skier's average speed? (Round your answer to the nearest tenth of a meter per second.)