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Two identical pucks are placed on a collision course on an air table as shown. After the collision puck A has a final velocity of 5 cm per second at an angle of 28 degrees from the vertical. Puck B has a final velocity of 4 cm per second at an angle of 32 degrees from the vertical. Determine the initial speeds of both pucks.
determine the length of the wire.
imagine that you spill a cup (250 g) hot water, initially at 75 C, onto the cold ground on a winter fay, Calculate the net change in the entropy of the universe due to this process, and comment on the result
If a person exerts 44 N of force on the back of a seat while stopping in 0.4 seconds, what is the impulse on the seat back?
A doubly charged ion is accelerated to an energy of 35.0 keV by the electric field between two parallel conducting plates separated by 2.20 cm
Two parallel rods are each 0.50 m in length. They are attached at their centers to either end of the spring (spring constant = 150 N/m) that is initially neither stretched nor compressed.
you have fixed costs of $608,000 per year. Your tax rate is 31 percent and your required return on this project is 11 percent. Illustrate what bid price per stamp should you submit?
A bale of hay sits on the bed of a trailer. The trailer is starting to accelerate forward, and the bale is slipping toward the back of trailer. What would a force diagram and a free-body diagram look like for the above situation.
Assuming that the total retarding force on the diver is constant at 55.0 N with the parachute closed and constant at 3600 N with the parachute open, what is speed of the diver while he lands on the ground.
When switch S in the figure is open, the voltmeter V of the battery reads 3.10V . When the switch is closed, the voltmeter reading drops to 2.96V, Find the emf
a 12.0 kg mass lies at x=-80.0 cm. A 21.0 kg mass is at x= 70.0 cm. The 12.0 kg mass is not moved to a different point on the x-axis. There is not a zero net force on the 10.0 kg mass. What is the new location of the 12.0 kg mass
A high-energy pulsed laser emits a 1.0-ns-longpulse of average power 1.7×1011W . The beam is nearly a cylinder 2.5×10?3m in radius and it travels in free space. Determine the energy delivered in each pulse.
A ranger in a national park is driving at 44 km/h when a deer jumps onto the road 70 m ahead of the vehicle. After a reaction time of t s, the ranger applies the brakes to produce an acceleration of -3.00 m/s2.
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