Q:A body is dropped from a spacecraft revolving the earth at a height of 100 km.What will happen to the ball?

Q:If degree C, degree F, degree k are the temperatureon celsius,fahrenhit and kelvin scales. Δ°C,Δ°F and ΔK are the change in temperature in celsius,fahrenhit and kelvin scale respectivily.which relation among th following is correct ?

A.°C÷9=°F÷5=K-273÷5

B.°C÷5=°F÷9=K÷9

C.Δ°C÷5=Δ°F÷9=Δ°K÷5

C.Δ°C÷5=Δ°F-32÷9=ΔK-273÷5

Three identical balls are placed on a frictionless horizontal surface touching each other. They stick to each other because of adhesive. Another ball of same radius and mass m is placed over the void created by the three balls. Find the forces applied by the balls kept on the floor to each other if the system remains in equilibrium.

A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.

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