Um motorista pretende percorrer uma distancia de 200km em 2,5 h. por dificuldades de trafego, ele percorre 25km a razão de 60 km/h. que velocidade media deve ter no trecho restante para chegar no tempo pretendido

A subway train accelerates from rest at one station at a rate of 1.30 m/s^2 for half of the distance to the next station, then decelerates at this same rate for the second half of the distance.

1. A toy car with mass m1 travels to the right on a frictionless track with a speed of 3 m/s. A second toy car with mass m2 travels with a speed of 6 m/s to the left on the same track. The two cars collide and stick together.

which of the following is an example of a compound machine. a. a bicycle chain. b. a coffee mug. c. a paper cutter

What is the volume of a gold nugget that weight 2.20kg. the density of gold is 19g/cm^3 ... ?

G a person of mass 100 kg is riding an elevator which was initially moving up with a velocity of 3 m/s. over a distance of 4 m the elevator slows down to 1 m/s. find the "apparent" mass of the person during that time (as the elevator slows down).

13/41 14. What is the SI unit for weight?

A circular curve of radius 150 m is banked at an angle of 15 degrees. A 750-kg car negotiates the curve at 85.0 km/h without skidding. a) what is the normal force on the tires exerted by the pavement.

A bird is flying at the speed of 24m/sec and accelerates to 75m/sec. It took 3.2 sec, what was the birds acceleration?

You have a suspect on the run in a dry, wooded area; they've ditched the gun but are hiding from you. how long do you have to find them before vital proof they fired a gun will probably no longer be on their body? A. a few hours B. about 24 hours C.

The atoms of a molecule come from two or more?