2. A car is travelling at 10m/s along a flat road. A driving force of 50 000 N acts on the car for a distance of 20 m causing it to accelerate.
(a) ( Use an equation from page 2 to calculate the work done by the 50 000 N force. [2]
Work done =
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Sara is creating an experiment. her hypothesis states the following. if i increase the air in my tires, then i will get better gas mileage. if this is her hypothesis what column titles do we need in our date table? a. air pressure in tire (psi) and gas mileage (mph) b. air pressure in the atmosphere (psi) and gas mileage (mph) c. miles (m) and gallons per mile (g) d. old battery and new battery

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine