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A basketball player makes a jump shot. The 0.550 kilogram ball is released at a height of 2.10 meter above the floor with a speed of 7.00 m/s. The ball goes through the net 3.10 meter above the floor at a speed of 4.20 m/s. Determine the work done on the ball by air resistance, a non conservative force? J
A 25 turn circular coil of length 5.5 cm produces a magnetic field of magnitude 2.5 mT at its center. Find the current in the lamp
A wooden block of volume 5.24 3 1024 m3 floats in water, and a small steel object of mass m is placed on top of the block. When m 5 0.310 kg, What is the density of the wood
A parallel-plate capacitor is made of two flat metal plates pressed against a thin slab of dielectric material. The capacitor is connected to a power supply, and a potential difference of 80 V is applied to the plates. With the power supply discon..
Item 4 To start her lawn mower, Julie pulls on a cord that is wrapped around a pulley. The pulley has a moment of inertia about its central axis of I = 0.660Kg(metersquared) and a radius of 6.00cm . There is an equivalent frictional torque impedin..
The battery of a pocket calculator has a voltage of 4.0 V and devilers a current of 0.17 mA, How much energy does the battery deliver to the calculator circuit
The plates of a parallel-plate capacitor have a separation of 2.00mm , and each has an area of 14.2cm^2 . Each plate carries a charge of magnitude 5.70×10?8C . The plates are in vacuum.
An airplane has a mass of 3.46 × 104 kg and takes off under the influence of a constant net force of 3.22 × 104 N. What is the net force that acts on the plane's 71.9-kg pilot
Assuming that the disks form a circular parallel plate capacitor and the electron are initially at rest when they pass through the first disk. A) determine the acceleration that the electrons undergo and B) the speed of the electrons as they pass ..
A right triangle has a hypotenuse of length 2.90 m, and one of its angles is 38.0°. What are the lengths of the following sides. a: the side opposite the 38.0° angle b: the side adjacent to the 38.0° angle
A lightning flash is seen in the sky and 8.2 s later the boomof the thunder is heard. The temperature of the air is 12.0 degreesC. How far away is the lightning strike? [Hint: Light is anelectromagnetic wave that travels at a speed of 3.00 x 10^8 ..
When striking, the pike, a predatory fish, can accelerate from rest to a speed of 3.8 in 0.13 How far does the pike move during this strike
A large steam pipe is covered with 1.3-cm-thick insulating material of thermal conductivity 0.25 J/(s m °C). How much energy is lost every second
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