3

The manufacturer of a machine said that it is 86 percent

efficient. If you use 70 joules to run the machine (input work),

how much output work will it produce?

Which of the following nutrients makes up the largest percentage of our body weight?

A soccer ball, a gallon of milk, and a sheet of Paper are dropped from the top of a tall building at the same time. Consider what you have learned about air resistance. Which object reaches the ground first?

Which simple machines make up a wheelbarrow?

What is the correct formula for of the weight w of an object? assume that its mass is m, the magnitude of its acceleration is a, and the local acceleration due to gravity is g?

How many significant figures should be the product 62.25 x 37.4 have a 2 b 3 c 4 d 7

When an ocean plate converges with another plate, what is created on the seafloor at the line of convergence?

Calculate the angle of refraction of 30.0° light shines from water into ice. The indices of refraction for water and ice are 1.36 and 1.31, respectively. A) 19.8° B) 31.3° C) 40.9° D) 64.0°

What is the length of a simple pendulum with a period of 2.0 s?

How many electrons are necessary to produce 1.0 c of negative charge? (e = 1.60 Ã 10-19 c) ?

A car is traveling at 64 ft/s when the brakes are fully applied, producing a constant deceleration of 18 ft/s2. What is the distance covered before the car comes to a stop? (Round your answer to one decimal place.)