What forces were acting on the objects dropped in the air? What forces act when dropped in a vacuum?

A car is traveling at 40 m/s for 20 seconds. How far did it travel in this time?

A nonconducting sphere is made of two layers. The innermost section has a radius of 6.0 cm and a uniform charge density of - 5.0C/m3. The outer layer has a uniform charge density of + 8.0C/m3 and extends from an inner radius of 6.

What is defined as a special kind of systematic observation, used by correlational researchers, that involves obtaining measures of the variables of interest in multiple waves over time.

Three cars, car X, car Y, and car Z, begin accelerating from rest, at the same time. Car X is more massive than car Y, which is more massive than car Z. The net force exerted on each car is identical. 1.

Why are there so many impact craters on our neighbor world, the Moon, and so few on Earth?

A car is moving with a speed of 22 m/s. The driver then brakes, and the car comes to a halt after 6.5 s. What is the distance covered by the car after the driver brakes, until it comes to a stop? A) 36 m B) 72 m C) 140 m D) 210 m

Which of the following best explains why an explosive charge in a cannon can cause a cannonball to fly out of the cannon with a high velocity? A. because chemical potential energy can convert to gravitational potential energy B.

Distance divided by time what is velocity

The decay constant of a radioactive nuclide is 4.6 x 10^-3 s^-1. What is the half-life of the nuclide? 2.5 min 2.0 min 1.4 min 3.6 min 3.1 min

A furlong is an old british unit of length equal to 0.125 mi, derived from the length of a furrow in an acre of ploughed land. a fortnight is a unit of time corresponding to two weeks, or 14 days and nights.