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A basketball player makes a jump shot. The 0.700 kg ball is released at a height of2.10 m above the floor with a speed of7.10 m/s. The ball goes through thenet 3.10 m above the floor at a speed of 4.30 m/s. What is the work done on the ball by airresistance, a nonconservative force?
a 10.0 komega resistor and a capacitor are connected in series and then a 10.0 v potential difference is suddenly
Leigh is doing a knee extension exercise using a 100 N dumbbell strapped to her ankle 40 cm from her knee joint. For this position, what torque is created by the dumbbell about her knee joint axis
define the hazards for astronauts inside any spacecraft moving in the vicinity of a pulsar.
A 7.4muC charge and a -4.3mC charge are inside an uncharged sphere. What is the electric flux through the sphere
A soccer player kicks the ball off the ground at an angle ? above the horizontal. The ball is in the air for 3.0 seconds, Find the soccer ball's initial horizontal (vox) velocity component
An orangutan throws a coconut verticallyupward at the foot of a small cliff 40m high while his matesimultaneously drops another coconut from the top of the cliff. Thetwo coconuts collide at an altitude of 20m.
A 200m wide river flows due east at a uniform speed of 2.0m/s.A boat with a speed of 8.0m/s relative to the water leaves thesouth bank pointed in a direction 30 degrees west of north. How long does it take the boat to cross the river
750kg racecar took 3s to slow from 32m/s to 15m/s. What was the impluse? what was the average force applied to the brakes
a tungsten target is struck by electrons that have been accelerated from rest through a 29.9-kv potential difference.
An airplane pilot wishes to fly directly westward. According to the weather bureau, a wind of 70.0 km/h is blowing toward the south. What is the speed of the plane over the ground
A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 10.9 m/s due north relative to the water. If the river is 362 m wide, explain how far downstream is the boat when it reaches the north shore?
A vessel contains 32 grams of dry ice (solid carbon dioxide) at T = -78°C, How much energy is required for the carbon dioxide to sublimate
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