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A skier of mass m= 70kg glides down a slope at angle theta= 32 degrees, as shown in the figure below. The snow is so slippery that you can neglect friction.
A) Find the skier's acceleration.
B) Find the force the snow exerts on the skier.
A bucket filled with dirt of mass 20 kg is suspended by a rope that hangs over a pulley of mass 30 kg and radius 0.25 m. What is the speed of the bucket
An object is placed 8cm in front of a converging lens with a focal length of 18cm. What is the lateral magnification
A box slides across a frictionless floor with an initial speed v = 2.2 m/s. What is the shortest length of rough floor which will stop the box
assume that a scale is in an elevator on earth. what force would the scale exert on a 57.6kg person on it if the
A rollercoaster car has a mass of 600 kg when fully loaded with passengers. what is the force of the track on the car at the top of the hill
A particular nucleus of the element plutonium contains 94 protons and 150 neutrons. What is the magnitude of the force from the nucleus on a single electron that is at a distance of 0.563 × 10-12 m from the plutonium nucleus.
A mass of 1.60 kg stretches a vertical spring 0.335 m. If the spring is stretched an additional 0.164 m and released, how long does it take to reach the (new) equilibrium position again.
Water flows trough a normal garden hose at 2 m/s. how fast does the water emerge from the hose nozzle
A hiker's trip consists of three segments. Path A is 8.0 km long heading 60degrees north of east. Path B is 7.0km long in a direction due east. Path C is 4.0 km long heading 315 degrees counter clockwise from east.
On your wedding day your lover gives you a gold ring of mass 3.98 g. 59 years later its mass is 3.73 g. On the average how many atoms were abrated from the ring during each second of your marriage? The atomic mass of gold is 177 u.
a rock is dropped into an abandon mine and a splash is heard 10 s later. how fast the rock was falling when it hit the water
Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.67 kg·m2 and an angular velocity of +3.04 rad/s. What is the moment of inertia of disk B
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