Imagine you have a brother two years younger than you are. Explain to him why:
a) the '+'terminal of one cell in a circuit should be connected
to the ''terminal of a second cell, but
b) the '+' terminal of an ammeter needs to be connected to the
'+' terminal of the battery.

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.

Why is no-till farming more sustainable than many traditional methods of farming

What is the largest meteoroid that has collided with this planet