The small slider of mass m = 0.73 kg is released from rest while in position a and then slides along the vertical-plane track. the track is smooth from a to d and rough (coefficient of kinetic friction μk = 0.26) from point d on. determine (a) the normal force nb exerted by the track on the slider just after it passes point b, (b) the normal force nc exerted by the track on the slider as it passes the bottom point c, and (c) the distance s traveled along the incline past point d before the slider stops. the distance r = 1.10 m.

The ballistic pendulum was invented in 1742 by english mathematician benjamin robins. it consists of an initially stationary pendulum that moves after being struck by a bullet, and it is used to measure the original velocity of the bullet. the known variables are the bullet's mass m, the pendulum's mass m, and the height to which the block and bullet swing, determined by the length of the pendulum l and final angle θ. two principles of physics are necessary to solve for the bullet's original velocity. what are these principles? conservation of momentum and newton's third law conservation of energy and conservation of angular momentum grade summary deductions 0% potential 100% conservation of momentum and newton's second law. newton's second law and conservation of angular momentum. conservation of energy and newton's third law conservation of momentum and conservation of angular momentum. conservation of momentum and conservation of energy conservation of energy and newton's second law.

If the new moon happens on january 15th, what shape will it be on february 6th?

If a star is moving toward earth, it is