A car moving west slows down from a velocity of 50 m/s to 20 m/s in 15 seconds. What is its acceleration?

Which of the following describes a characteristic of a series circuit? There is more than one path for the electrons to take. There is at least one power source and at least one receiver. All parts of the circuit are connected one after the next.

Write an expression for the relationship between the spring constant and the displacement of an object hanging from a spring. do the same for the displacement of the spring when the object is compressing the spring.

Do you need inertia to run?

Four negatively charged particles are at various distances from a positively charged plate the particles are equally charged which particle has the greatest electrical pontential energy

Explain how a pile of ashes has the same mass as the original log before it was burned. What is the law that defines this

A hot-air balloon is 150 feet above the ground when a motorcycle passes directly beneath it (traveling in a straight line on a horizontal road). The motorcycle is traveling at 40 mph.

How do I calculate initial speed by using the slope of a graph? The graph shows the relationship between S { (sin2ϴ) / g} and the average range of a projectile in meters.

You push a 50 kg wooden box across a wooden floor at a constant speed of 1.0 m/s. The coefficient of kinetic friction is 0.15. Now you double the force on the box. How long would it take for the velocity of the crate to double to 2.0 m/s?

A star is in hydrostatic equilibrium when the outward push of pressure due to core burning is exactly in balance with the inward pull of gravity.

How are mass and weight different? a. Mass is the space an object takes up and weight is the effect of gravity on mass. b. Mass is the amount of matter and weight is the effect of gravity on mass. c.