What is the final temperature of 0.5 kg of water initially at 18 °C after 65 kJ of

heat is added

a. 31 °C

b. 42 °C

c. 49 °C

d. 27 °C

Two men each have a mass of 90 kg. If the gravitational force between them is 8.64 10-8 N, how far apart are they? G = 6.67 * 10-11 N⋅ (m/kg) 2

During a baseball game a pitcher threw a baseball, and the catcher, who was behind home plate, caught it. Which is true about the pitcher when the catcher caught the ball? A) He saw the catcher catch the ball first.

A planet orbits a star, in a year of length 2.35 x 107 s, in a nearly circular orbit of radius 3.49 x 1011 m.

If you wanted to know how big a tiger was what measurement would you use a. candela, mole b. meter, second c. kilogram, ampere d. meter, kilogram

Which of galileo's observations most strongly supported a heliocentric cosmology? the phases of venus?

a bike can climb the inclined road at uniform speed of 72 km/hr by applying force 500N what will be the power applied by the bike?

According to bohr's theory, how do electrons move around the nucleus

On a very hot summer day, railroad tracks can buckle, causing train delays and derailments. Select the best reason below for the buckling.

How long will it take you to swim 100 meters if you swim at a speed of 12.5 m/s?

What are the two factors that determine an objects gravitational potential energy