When an object stops moving, changes speed, or changes direction, how does a scientists describe that condition?

A. Unbalanced forces

B. Frictional force

C. A balanced set of forces

D. stable factors

Which of the activities below are examples of projectile motion? Check all that apply. A. A football thrown down the field B. A tennis ball tossed up before a serve C. An apple falling from a tree D. An airplane landing

How are evaporation and sublimation similar?

Calculate the acceleration of the car for each set of conditions using the formula a = (v2 - v1) / (t2 - t1) where v2 and v1 are the first and second velocities and t1 and t2 are the average times the car took to reach the 0.25 and the 0.

What is inertia? Discuss which object among the following sets has more inertia and why. a. a more massive object or less massive object. b. fast moving object or a slow moving object

Use Hooke's Law to determine the variable force in the spring problem. A force of 450 newtons stretches a spring 30 centimeters. How much work is done in stretching the spring from 40 centimeters to 70 centimeters?

Lisa has three classes that each last 50 minutes qhat ia the total nuber of minutes of minutes of the three classe?

Which has a greater speed a heron hat travels 600m in 60 seconds or a duck that travels 60 m in 5 seconds? Explain

A machine shovel moves dirt at the rate of 1,100 pounds of dirt 1 foot in 1 second. How many horsepower is this?

Two descriptions about physical quantities are given below: Quantity A: It is a force. Quantity B: It changes when the object travels from Earth to Earth's moon. What quantities are these most likely describing? A.

How does the tilt of Earth's axis affect how the sun's rays strike Earth?