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A soccer player kicks the ball toward a goal that is 29.0 meter in front of him. The ball leaves his foot at a speed of 19.0 m/sand an angle of 32.0 degree above the ground. Evaluate the speed of the ball when the goalie catches it in front of the net.
A transformer is designed to change 120 V into 10,000 V, and there are 164 turns in the primary coil. How many turns are in the secondary coil
A 569-?F capacitor is discharged through a resistor, whereby its potential difference decreases from its initial value of 88.5 V to 13.3 V in 4.57 s
The circuit in the drawing contains two resistors and twocapacitors that are connected to a battery via a switch. When theswitch is closed, the capacitors begin to charge up. What is the time constant for the charging process?
A projectile is fired with an initial speed of 113 m/s at an angle of 60 degrees above the horizontal, from the top of a cliff which is 49.0 meters high. determine time to reach maximum height
A wheel of radius 2m (I=MR^2) has a rotational kinetic energy of 4800 J when rotating at 20 rev/s. What is the final angular speed of the system
A beam of electrons is accelerated through a potential difference of 10 kV before entering a region having uniform electric and magnetic fields that are perpendicular to each other and perpendicular to the direction in which the electron is moving. I..
The Sun generates most of its light during a series of nuclear reactions called the proton-proton chain. The overall process of these nuclear reactions can be summarized as4 1H → 2He + 2ν + 2γ + 2? Where ν is a small neutral particle called a neutrin..
A charged conducting sphere of radius 18 cm has 1012 electrons removed from its surface. What is the surface charge density of the sphere
A 17.5 kg cart is moving with a velocity of 7.65 m/s down a level hallway. A constant force of -10.0 N acts on the cart, and its velocity becomes 3.20 m/s. Assume that air resistance is negligible.
on a frictionless horizontal table a stick of mass m and length l spins around a pivot at one of its ends with angular
The lowest pedal note on a large pipe organ has a fundamental frequency of 16 Hz, What is the length of the open-closed pipe that makes that note
A 53 dB sound wave strikesan eardrum whose area is 4.7 multiplied by 10-5 m2. How much energy is absorbed by the eardrum per second
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