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A wire that is carrying a current is placed in a uniform magnetic field pointing out of the page. The I vector is pointing to the right. What direction does the force on the wire point?
Hakeem throws a 10.50 g ball straight down from a height of 2m. The ball strikes the floor at a speed of 7m/s. What was the initial speed of the ball? Presume that air resistance is negligible.
A 1 mL syringe has an inner diameter of 4.0 mm, a needle inner diameter of 0.220 mm, and a plunger pad diameter (where you place your finger) of 1.20cm.
What friction torque is required to reduce its angular speed from 80.0 to 51 in 27.
The acceleration of gravity is 9.81 m/s^2. Assuming that air resistance is simply a constant 96 N force on the person during the fall, identify the person's velocity just before hitting the net. Answer in units of m/s.
A railroad car of mass 2.40 multiply.gif 104 kg is moving with a speed of 3.82 m/s. find the speed of the four cars after the collision
A light spring of force constant k = 156 N/m rests vertically on the bottom of a large beaker of water. A 5.55-kg block of wood (density = 650 kg/m3) is connected to the spring, and block-spring system is allowed to come to static equilibrium. Wha..
A power plant burns coal and generates an average of 600.0 MW of electrical power, Find the total electrical energy generated by the plant in a 30-day period
A jogger travels a route that has two parts. The first is a displacement of 2.00 km due south, and the second involves a displacement that points due east.
Assume a typical hummingbird has a lifespan of 4.00 years and an average heart rate of 1300 beats per minute. Compute the number of times a hummingbird's heart beats in its life, and express it in scientific notation. Make use of 365.24 days per y..
A penny of mass 3.10 g rests on a small 22.40 g block supported by a spinning disk of radius 11 cm. The coefficients of friction between block and disk are 0.715 (static) and 0.64 (kinetic) while those for the penny and block are 0.564 (static) an..
An old hunting weapon was a rock on the end of a string. The hunter would swing the rock in horzontal circles and then throw it. If the rock had a mass of 2 kg and the 2 m long string breaks when the tension is 60N.
A 62 kg student is standing atop a spring in an elevator that is accelerating upward at 3.3 m/s^2, By how much is the spring compressed
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