A person with a weight of 400 N is sitting motionless on a swing. For the swing. For the swing to be equilibrium, what is the tension force in each rope holding up the swing?

In a vernier instrument the main scale is in 1/2 mm divisions .vernier is made by redividing 19 such divisions into 20 equal parts. calculate the least count of the instrument.

What do you think car designers do if the damage caused by a crash test is too severe?

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)