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Recent studies have raised concern about `heading' in youth soccer (i.e., hitting the ball with the head). A soccer player `heads' a size 5 ball, deflecting it by 36.0 deg, but keeping its speed of 10.40 m/s constant. A size 5 ball has a mass of approximately 0.416 kg.a) What is the magnitude of the impulse which the player imparts to the ball?b) If the player's head has a mass of 4.50 kg, what is the magnitude of the average acceleration of the player's head during the impact? Assume that over the brief time of the impact, 31.00 ms, the player's head can be treated separately from the player's body.
What is the final speed of the crate after being pulled. On a very muddy football field, a 100 linebacker tackles an 80 halfback. Immediately before the collision, linebacker is slipping with a velocity of 8.5 north and the halfback is sliding with..
A parallel plate capacitor (air filled) that is maintained at a 20.0 V potential difference between plates, Calculate the surface charge density, and the charge on each plate
The length of a simple pendulum is 0.86 m and the mass of the particle (the "bob") at the end of the cable is 0.33 kg. The pendulum is pulled away from its equilibrium position by an angle of 9.0 ° and released from rest.
Vector A has a magnitude of 10m and makes an angle of 78o with the positive x axis. Vector B also has a magnitude of 13m and is directed along the negative x axis. Enter your answers in distance then angle (in degrees).
A car of mass 961 kg coasts on a level road, starting with an initial speed of 14.6 m/s and coming to rest 15.4 s later. Find the frictional force acting on the car
A Carnot engine takes an amount of heat QH = 111 J from a high-temperature reservoir at temperature TH = 1030 °C, Find the amount of work that is obtained from this process
A large air conditioner has a resistance of 6.0 Ohm and an inductive reactance of 16 Ohm. Find the average power consumed by the air conditioner
Primary side of transformer has a voltage of 44,000 volts and 220,000 turns. to step down to 220 volts, how many turns must secondary side have to have
Consider a large uniform rectangle, length L on the long edge and width W on the short edge. Calculate the moment of inertial of the rectangle
An earth satellite moves in a circular orbit with an orbital speed of 6100. Find the radial acceleration of the satellite in its orbit
A simple pendulum is 4.00 m long. What is the period of small oscillations for this pendulum if it is located in an elevator accelerating upward at 2.00 m/s2
A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, Find the direction of the acceleration
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