Tag: general knowledge

If a feather and hammer are dropped on the Moon at the same time from the same height they will hit the Moon’s surface at virtually the same time.

The pressure at the bottom of a 10-meter-deep, 20-kilometer-wide lake is higher than the pressure at the bottom of a 10-meter-deep well which is only 1 meter across. (Assume all things are equal except the parameters mentioned.)

When a person uses a simple machine, such as a lever or a pulley, the work or energy output from the simple machine becomes (neglect any potential energy that may have been previously stored in the machine) :

Jane reads that passing a current of 100 milliamps through a person’s body from one hand to the other can be fatal. She accidentally grabs the positive terminal of her car’s battery in one hand and the negative in the other. Her car has a 12-volt battery rated for 100 amps. What will happen to her