Suggest why it might be a good idea to reduce the pressure of the air in car tyres if the car is to be driven over soft sand or over snow.

A body is thrown vertically upwards. Its velocity keeps on decreasing. What happens to its kinetic energy when it reaches the maximum height?

A Honda Hawk motorcycle and its rider with a combined mass of 450 kg travels around a curve of radius 106 m with a speed of 18 m/s. Calculate the coefficient of static friction of the pavement if they negotiate the curve without skidding.

A 65 kg diver is on the 3 meters platform how much energy will she have striking the water below

1. Find the velocity of a turtle who swims 100 meters toward the shore in 25 seconds.

What is the difference between Drift current & Diffusion current?

A space probe produces a radio signal pulse. If the pulse reaches Earth 12.3 seconds after it is emitted by the probe, what is the distance from the probe to Earth?

Do substances that heat up quickly have high or low specific heat capacity?

A substance has a specific heat of 0.870 J/g°C. It requires 2,000.0 joules to increase the temperature of 10.0 grams of the substance from its original temperature to its final temperature. By how many degrees did the substance increase? A 87.

How many earth years does it take mars to orbit the sun

Which represents a system that is almost completely closed?