A map is given with a scale of 2 cm = 1000 km. What is the actual distance between the two places in kms, if the distance in the map is 2.5 cm?

The distance between Radha's home and her school is 3250 m.Express this distance into km.

Find the electrostatic force between two protons placed in free space separated by distance 20 cm.

A car covers a distance of 89.1 km in 2.2 hours. What is the average distance covered by it in 1 hour?

A car A is travelling on a straight level road with a uniform speed of 60 km/h. It is followed by another car B which in moving with a speed of 70 km/h. When the distance between then is 2.5km, the car B is given a deceleration of 20km//h^2 . After how much time will B catch up with A

Two parallel plate air capacitors have their plate areas 100 and 500 cm^(2) respectively. If they have the same charge and potential and the distance between the plates of the first capacitor of 0.5 mm, what is the distance between the plates of second capacitor ?

The scale of a map is given as 1:30000000. Two cities are 4 cm apart on the map. Find the actual distance between them.