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A particle with a charge of -60.0 nC is placed at the center of anon conducting spherical shell of inner radius 20.0 cm and outer radius 27.0 cm. The spherical shell carries charge by a uniform density of -2.95 µC/m3. A proton moves in acicular orbit now outside the spherical shell. Compute the speed of the proton.
A satellite operates at an altitude of 20,100 km and utilizes communication frequencies of1598.48 MHz. Find the gravitational frequency change by respect to Earth.
A 15 g piece of Styrofoam carries a net charge of -5.1 µC and floats above the center of a large horizontal sheet of plastic that has a uniform charge density on its surface. What is the charge per unit area on the plastic sheet?
A strip of copper 10 mm wide and 900µm thick is placed in a uniform magnetic field B vec of magnitude 0.30 T, with B vec perpendicular to the strip. A current i = 23 A is then sent during the strip such that a Hall potential dissimilarity V appears a..
A 11cm long animal tendon was found to stretch 3.9mm with a force of 13.8N. The tendon was approximately round by an average diameter of 8.5mm. Compute the elastic modulus of this tendon.
A soap fil (n=1.33) is 465 nm thick and lies on a glass plate (n=1.52). Sunlight, whose wavelengths (in vacuum) extend from 380 to 750 nm, travels during air and strikes the film perpendicularly.
The range of wavelengths allotted to the radio broadcast band is from about 150 m to 630 m. If each station needs exclusive utilize of a frequency band 10 kHz wide, how many stations can operate in the broadcast band?
In a physics lab, a student accidentally drops a 21.0-g brass washer into an open Dewar of liquid nitrogen at 77.2 K. How much liquid nitrogen boils away as the washer cools from 291 K to 77.2 K? The latent heat of vaporization for nitrogen is 199.1 ..
A tennis ball of mass m = 0.060 kg and speed v = 25 m/s strikes a wall at a 45-degree angle. It rebounds with the similar speed, once again at a 45-degree angle. What is the magnitude of the momentum impulse (in Ns) that the ball gave the wall?
A pitcher throws a 0.145-kg baseball to a batter at 36 m/s. The batter hits the ball straight back at the pitcher at 49 m/s. The amount of time that the bat and ball are in contact is 9.0E-3s. What is the force (in N, assumed to be constant) among th..
At low speed, air resistance is a force proportional to the velocity v of an object: F = -kv. Is this force conservative? What is the escape velocity (in m/s) from the Sun (M =2.0E30 kg) of an object that is a distance 9.1E7 km from the center of the..
After getting a drink of water, a hamster jumps onto an exercise wheel for a run. Afew seconds later the hamster is running in place with a speed of 1.3m/s. Find the work done by the hamster to get the exercise wheel moving, assuming it is a hoop of..
A ball of mass 1.5 kg is thrown upward. It leaves the thrower's hand with a velocity of 10 m/s. After the ball hits the thrower's hand, it comes to rest in a time of .25s. Define is the net impulse exerted on the ball?
The mass of the airplane is m = 9010 kg. The plane travels at a constant speed around a circular path of radius R = 8.67 miles, What is the magnitude of the lift force acting on the plane
A compound microscope has a barrel whose length is 16.0 cm and an eyepiece whose focal length is 1.6 cm. What focal length must the objective have
the drag on the hull of a ship depends in part on the height of the water waves produced by the hull. the potential
You throw a ball with a speed of 25m/s at an angle of 40.0° above the horizontal directly toward awall. What are the horizontal and vertical components of its velocity as it hits the wall
A water hose 2.75 cm in diameter is used by a gardener to fill a 28.0-liter bucket. (One liter = 1,000 cm3.) Over what horizontal distance can the water be projected
A train has the length of 114 m and starts from rest with a constant acceleration at time t = 0 s. At this instant, a car just reaches the end of the train.
an inductor that has a resistance of 40 ohm is connected to an ideal battery of 224V. Calculate the inductorace
is it correct to say the difference in the patterns produced by monochromatic and white light is caused by the fact
A futuristic design for a car is to have a large disklike flywheel within the car storing kinetic energy. The flywheel has mass 370 kg with a radius of 0.50 m and can rotate up to 540 rev/s.
A 20 kg uniform beam is placed on two supporting stands on either end. A 75 kg painter stands at 1.2 m from one of the ends. find the forces at the two supports
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