Object A attracts object B with a gravitational force of 10 newtons from a given distance. If the distance between the
two objects is doubled, what is the changed force of
attraction between them?
O 2.5 newtons
05 newtons
20 newtons
O 100 newtons

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.

You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.