Oxygen-18 is a naturally-occurring, stable isotope and is commonly used is scientific studies as a tracer. Using the periodic table, explain the difference between oxygen-18 and oxygen-16.

Calculate the amount of work done if you use a 100 N force to push a 50 kg box 5 m across the kitchen floor.

Select all the correct answers. What happens to water when it changes to ice? Its density increases. Its density decreases. Its mass increases. Its mass decreases. Its volume increases. Its volume decreases.

an airplane accelerates down a runway at 3.20m/s2 for 32.8s until it finally lifts off the ground. Determine the distance traveled before takeoff.

Which of the following is an example of a technological solution to water pollution in a local pond?

A baseball is thrown straight up and travels to a height of 9.0 meters before returning back to the thrower. If the thrower catches the ball at the same height it was thrown, how long would the ball be in the air?

An 8 kilogram bowling ball is rolling in a straight line toward you. if its momentum is 16 kg * m/s, how fast is it traveling?

Explain why a moving object can be in equilibrium

Design an investigation to compare the durability of the three different brands

The surface area of the skin of a person who is 70 inches tall and weighs w pounds can be estimated by s (w) equals=342 w superscript 0.425342w0.425 , where s is in square inches.

The train speeds passed Holly at 70 km/h north ward. This spider crawls past lukes foot in the same direction at 30 m/h. What is the velocity of the spider relative to Holly?