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Three observers watch a train pull away from a station toward the right of the platform. Observer A is in one of the train's cars; Observer B is on the station platform;

Which contribution did Kepler make to viewing the solar system? He proposed that gravity kept the planets in their orbits. He proposed the sun-centered model of the solar system. He showed that planets moved in elliptical orbits.

Which has the hottest temperature? A.) a blue star B.) a red giant star C.) the left over energy from the big bang D.) a swirling accretion disk of matter orbiting a black hole

A truck at rest at a stoplight accelerates uniformly with acceleration a = 3.8 meters/second2 for 8.5 seconds after the light turns green. What is the speed of the truck in meters/second after that time interval?

A jug of water containing 5.00 kg of water is sitting on a table at sea level. The bottom of the jug has a radius of 10.0 cm. What is the pressure on the bottom of the jug? 49.0 N/cm2 6.41 N/cm2 0.156 N/cm2 15400 N/cm2

Assume that the temperature, 40C, and volume of the gas, 6 liters, remain constant. At 2 atmosphere of pressure, there are 0.036 moles of the gas. Write an equation that describes the pressure on the gas in terms of the amount of gas.

Why are humans more like animals than plants?

During a solar eclipse, you have the opportunity to observe stars around the periphery of the sun with a telescope. Which of the following is an observation that you would expect to make? A. The starlight is decentralized. B.

La energia cinetica de una masa de 6kg que poses una velocidad de 10m7 / la energia cinetica de una masa de 6kg que posee una velocidad de 15m/s como lo puedo desarrollar

How long does it take a 1.51 * 104 W steam engine to do 8.72 * 106 J of work? Round your answer to three significant figures.