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A quarterback throws a pass that is a perfect spiral. In other words, the football does not wobble, but spins smoothly about an axis passing through each end of the ball. Suppose the ball spins at 8.8 rev/s. In addition, the ball is thrown with a linear speed of 19 m/s at an angle of 59 ° with respect to the ground. If the ball is caught at the same height at which it left the quarterback's hand, how many revolutions has the ball made while in the air?
A 10.0kg stone slides down a snow-covered hill (the figure (Figure 1) ), leaving point A with a speed of 10.0m/s. How far will the stone compress the spring
With the switch open the ammeter reads 1.00 A. What is the resistance of resistor R2 to an appropriate precision and what is the potential difference across R2 when the switch is open?
You are given a container with 5.0g of hydrogen atoms. What is the total charge on the electrons in the container? What is the total charge on the protons
A woman rides a carnival Ferris wheel at radius 16.00 m, completing 4.10 turns about its horizontal axis every minute. What are (a) period of the motion, and the magnitude of her centripetal acceleration at (b) highest point and (c) the lowest poi..
Two stationary positive point charges, charge 1 of magnitude 3.80 and charge 2 of magnitude 1.95 , are separated by a distance of 38.0 . An electron is released from rest at the point midway between the two charges.
One solenoid is centered inside another. The outer one has a length of 46.0cm and contains 6600 coils, Find the emf induced in the inner solenoid
Suppose a 1.83-g nugget of pure gold has zero net charge. What would be its net charge after it has 1.92 % of its electrons removed?
In an amusement park ride called The Roundup, passengers stand inside a 19.0 m -diameter rotating ring. What is the longest rotation period of the wheel that will prevent the riders from falling off at the top
Two tiny conducting spheres are identical and carry charges of -29.4C and +70.0C. They are separated by a distance of 2.66 cm. (a) What is the magnitude of the force that each sphere experiences?
What speed must she have at point 3, so that the normal force at the top has the same magnitude as it did at the bottom.
A block starts with a certain speed at the top of a frictionless inclined plane with an unknown angle to the horizontal. To calculate the time required for the block to reach the bottom of the plane.
You hold a spherical salad bowl 90 cm in front of your face with the bottom of the bowl facing you. The salad bowl is made of polished metal with a 35 cm radius of curvature. What is the image (your face's image) distance along the central axis fr..
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