When can we be certain that the average velocity of an object is always equal to its instantaneous velocity?

A rollercoaster car is moving 19.8 m/s on flat ground when it hits the brakes. It accelerates at - 3.77 m/s over the next 45.8 m. How much time does it take

You are sitting in a car that isn't moving; suddenly, the car quickly accelerates. your body seems to be pushed back against the seat. which word best explains why your body seemed to be pushed backward against the seat?

A ball is launched directly in the air at a speed of 40 feet per second from a platform located 10 feet in the air.

What is the acceleration of a 10 kg mass pushed by a 5 N force?

Battery life is what distinguishes one type of mobile computer from another.

What are sun spots?

Identify characteristics of objective personality tests. -self-report -scientific -paper-and-pencil -questions about behavior -objective -potentially biased answers Multiple Choice-Psychology

The Pony Express was a mail delivery system in the Old West that used a series of men on horseback to deliver mail from St. Joseph, MO to Sacramento, CA along a trail that was 2000 miles long.

In the virtual lab, calculations were made of the predicted diffraction angle, using the formula θ ≈ StartFraction lambda over L EndFraction.

What trends were seen in Mendeleev's periodic table?