The runner completes exactly 2 laps around a 400 m track. What is the distance and displacement?

Marie notices that most of her friends have MP3 players that are all made by a certain brand. She wants one, too, but not just any MP3 player. Marie wants to buy the exact same brand that her friends have. She thinks this is the way to fit in.

A ray of light in air strikes the flat surface of a liquid, resulting in a reflected ray and a refracted ray.

A doctor estimates that a particular patient is losing bone density at a rate of 3% annually. The patient currently has a bone density of 1,500 kg/mg3. The doctor writes an exponential function to represent the situation.

If 1.30 g of matter were converted to energy, how much energy would be formed?

While an airplane is in flight, four forces act on it. Thrust is caused by the airplane's propellers pushing through the surrounding air, pulling the airplane forward. Drag is caused by the air smacking into the plane's surface, pushing it backward.

Why does the modern atomic theory today represent the best explanation scientists have to offer?

Light travels at a constant speed of 3.0*108 m/s in a vacuum. (a) It takes light about 1.3 seconds to travel from the Earth to the Moon. Estimate the distance of the Moon from the Earth's surface, in meters.

A car travels 1000m North and 2000m South. The total journey time is 300s. Calculate the distance traveled

Which elements on the periodic table have the lowest electronegativity? A. Elements on the bottom left B. Elements on the bottom right C. Elements on the top right D. Elements on the top left

An astronaut has become detached from her spaceship. She's floating in space holding a wrench. She's 50 m from her current location. How does she get back to the spaceship?