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A swimmer, capable of swimming at a speed of 1.18 m/s in still water (i.e., the swimmer can swim with a speed of 1.18 m/s relative to the water), starts to swim directly across a 2.16-km-wide river. However, the current is 1.19 m/s, and it carries the swimmer downstream.
(a) How long does it take the swimmer to cross the river?
(b) How far downstream will the swimmer be upon reaching the other side of the river?
The horse on a carousel is 3.8 from the central axis.If the carousel rotates at 8.0×10?2 , how long does it take the horse to go around twice
Find the electric field energy density and the energy content for a spherical capacitor of radii r1 and r2 where they hold charges of q and -q
As a marble with a diameter of 2.0 cm rolls down an incline, its center moves with a linear acceleration of 3.5 m/s^2. What is the angular acceleration of the marble
x-rays are scattered from a target at an angle of 48.5deg with the direction of the incident beam. find the wavelength
The electric potential at a position located a distance of 21.3 mm from a positive point charge of 6.60×10-9C and 11.8 mm from a second point charge is 1.02 kV. Compute the value of the second charge.
A construction worker with a weight of 820N stands on a roof that is sloped at 16 degrees. find the magnitude of the normal force of the roof on the worker
An AC generator supplies an rms voltage of 230 V at 50.0 Hz. It is connected in series with a 0.650 H inductor, a 6.00 ?F capacitor, What is the peak voltage across the capacitor
question a spherical concave shaving mirror has a radius of curvature of 33.0 cm. what is the magnification of a
a person decides to use an old pair of eyeglasses to make some optical instruments. he knows that the near point in his
A drill bit on a variable - speed drill has a constant angular acceleration of 2.5 rad/s2. The drill has an initial angular speed of 5.00 rad/s (a) after 4.00s, what will the angular displacement of the bit be? (b) What will the drill bits final spee..
A simple pendulum has a mass of 0.350 kg and a length of 7.00 m. It is displaced through an angle of 12.0° and then released, What is the maximum angular acceleration
A car traveling 56.1 km/h is 24.6 m from a barrier when the driver slams on the brakes. The car hits the barrier 1.72 s later. (a) What is the car's constant deceleration magnitude before impact? (b) How fast is the car traveling at impact?
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