Which of the following is always a part of speed, velocity, and acceleration?

time

direction

temperature

change in speed

A proper cool-down routine includes which of the following?

Which has the greater amount of thermal energy in iceberg or a hot cup of coffee

At a certain factory, 340 kg crates are dropped vertically from a packing machine onto a conveyor belt moving at 1.00 m/s. (A motor maintains the belt's constant speed.) The coefficient of kinetic friction between belt and crate is 0.400.

Which are negative impact that the internal combustion engine has had on society

Three balls are in water. Ball 1 floats, with half of it exposed above the water level. Ball 2, with a density less than the density of water is held below the surface by a cord anchored to the bottom of the container, so that it is fully submerged.

How to convert 125 cubic centimeters to cubic miles

When does water reach its lowest density?

A 1300 kg car carrying four 84 kg people travels over a "washboard" dirt road with corrugations 3.2 m apart. The car bounces with maximum amplitude when its speed is 13 km/h.

A stomp rocket takes 1.5 seconds to reach its maximum height What was it's maximum height

A 3.0 kg rifle is held firmly by a 50.0 kg woman, initially standing still. A 0.06 kg bullet leaves the rifle muzzle with a velocity of 600 m/s. With what final velocity will the woman and rifle recoil?