Arope pulls a 40 kg metal block 6 m up a ramp at constant velocity of 2 m/s. the ramp makes and angle of 18° with the horizontal. the tension on the rope running parallel to the ramp is 1500 n a) draw a free body diagram showing all the forces acting on the metal block (b) how much work is done by the force of tension pulling the log 6 m up the ramp? (c) how much work is done by gravity pulling the block 6 m up the ramp? (d) how much work is done by the normal force pulling the block 6 m up the ramp? (e) how much work is done by the friction force pulling the block 6 m up the ramp? (f) determine the coefficient of friction between the block and ramp (g) while the block is in rest at the top of the ramp, the rope breaks down and the block slides downwards along the incline. how fast is it moving as it reaches the bottom of the ramp?

Air is held within a frictionless piston-cylinder container, which is oriented vertically. the mass of the piston is 0.45 kg and the cross-sectional area is 0.0030 m2. initially (state 1) the pressure of the gas is sufficient to support the weight of the piston as well as the force exerted by the atmospheric pressure ( 101.32 kpa). the volume occupied by the air within the cylinder in state 1 is 1.00 liter. one end of a spring (with spring constant k = 1000 n/m) is attached to the top of the piston, while the other end of the spring is attached to a stage that can move vertically. initially the spring is undeflected and therefore exerts no force. then the stage is then moved quasistatically downward a distance of 10.0 cm, at which point the system reaches state 2. the piston-cylinder is not insulated; rather it remains in diathermal contact with the surroundings, which are at a constant temperature of 300 k. what is the change of pressure within the container?

Acar moves a distance of 50.0 km west, followed by a distance of 64.9 km north what was the magnitude of the displacement of the car, in units of kilometers?

What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.