Penny is pushing a piston in a simple hydraulic system. Pauly is pushing on the other piston just hard enough to keep it from moving. If Penny's piston is wider than Pauly's, who is pushing with greater force?
A.
There is not enough information.
B.
Pauly is exerting the greater force.
C.
They are both using equal force.
D.
Penny is exerting the greater force.

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c. the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot