1. when estimating the area covered by an object, what type of errors might you make and what are the sources that might have caused it.

How do physicists use science? O A. They read books. O B. They are always correct. OC. They have opinions. O D. They observe the world.

6) A ball free falls from the top of the roof for 5 seconds. How far did it fall? What is its final velocity at the end of 5 seconds?

A 50.0N box is at rest on a horizontal surface. The coefficient of static friction between the box and the surface is 0.50, and the coefficient of kinetic friction is 0.30. A horizontal 20.0N force is then exerted on the box.

Why are experiments often performed in laboratories? a. There are more variables in a laboratory setting. b. You can control variables more easily. c. They are better at representing the real world. d.

An input force of 50. newtons is applied through a distance of 10. meters to a machine with a mechanical advantage of 3.

When water vapor condenses on the inside of a window, the window becomes

Try this out. Use a calculator! We can use the formula KE=0.5m*V^2. To find the kinetic energy (KE) of a payload of mass (m) 100 kg as it flies through the air at the velocity (v) of 55 m/s. (Multiply 0.5 x the mass x velocity squared.

Which group of measurements is the most precise? A) 2 g, 3 g, 4 g B) 2 g, 2.5 g, 3 g C) 2.0 g, 3.0 g, 4.0 g, 5.0 g D) 2.0 g, 3.0 g, 4.0 g

A 946.4 kg (2083 lb) car is moving at 14.8 m / s (33.0 mph). Calculate the magnitude of its momentum.

How do the positions of the hot and cold water affect the speed of convection