Determine the mass of the object below to the correct degree of precision.

15.37 g

15.370 g

153.7 g

153.73 g

An object is dropped from rest. What is the acceleration after 3 s? The acceleration of gravity is 9.8 m/s.

A bicycle rider travels 50.0 km in 2.5 hours. What is the cyclists speed

What did the biologist wear on his first date?

A crate falls from an airplane flying horizontally at an altitude of 2,000 m. Neglecting air drag, how long will the crate take to strike the ground?

A boy throws a ball straight up in the air with an initial velocity of V+3 mls. The ball reaches a maximum height and starts towards earth. The boy catches the ball at the same height that it left his hand. How long is the ball in the air? 6. a.

In a nuclear power plant, the temperature of the water in the reactor is above 100°C because of what?

Determine the total mechanical energy of a 250 g baseball if it has a velocity of 30 m/s when it leaves the pitcher's hand 1.2m above the ground.

When distances were carefully measured from Earth to globular clusters above and below the Milky Way plane (where our view of them is not obscured by interstellar dust and gas), their distribution was found to be

Imagine you transfer heat into a gas. This heat splits up in two different ways: Additional thermal energy making the gas hotter and "fuel" for the gas to do work. Let's suppose, 64% of the transferred heat transforms into thermal energy.

How much heat is absorbed by a 61g iron skillet when its temperature rises from 5oC to 29oC?