Afancart of mass 0.8 kg initially has a velocity of < 0.9, 0, 0 > m/s. then the fan is turned on, and the air exerts a constant force of < -0.3, 0, 0 > n on the cart for 1.5 seconds. what is the change in momentum of the fancart over this 1.5 second interval? = < , 0, 0 > kg

Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

Why don't you see your reflection in water with waves or repples