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A basketball (m = 0.64 kilogram) is dropped from rest. Just before striking the floor, the ball has a momentum whose magnitude is 3.3 kg•m/s. Find at what height was the basketball dropped?
When a certain air-filled parallel-plate capacitor is connected across a battery, it acquires a charge (on each plate) of200 µC. While the battery connection is maintained, a dielectric slab is inserted into and fills the region between the plates..
In a large centrifuge used for training pilots and astronauts, asmall chamber is fixed at the end of a rigid arm that rotates in ahorizontal circle. How long is the arm of the centrifuge
A charge of 20 nC is uniformly distributed along a straight rod of length 4.0 m that is bent into a circular arc with a radius of 2.0 m
With a particular grating a doublet of the two wavelengths 731.3 and 732.1 nm is viewed in the third order at 9.3° to the normal, find the grating spacing in nanometers
Three electrons are placed at the coners of a 45 degree triangle (triangle is a right triangle). The distance along the horizontal and the vertical corners are 10^-8. Discover the magnitude and direction.
A cannonball is shot (from ground level) with an initial horizontal velocity of 36 m/s and an initial vertical velocity of 21 m/s. What is the initial speed of the cannonball
a charged styrofoam ball of mass 100g hangs motionless from a string that makes and angle 10 degrees with respect to
A 2.0-kg object is attached to one end of a horizontal spring that has a negligible mass and a spring constant of 250 N/m. The other end of the spring is fixed to a wall. The spring is compressed by 15 cm from its equilibrium position and released fr..
If a harmonic object has a displacement that is described by: X = (.25m) sin (10 t), calculate the maximum velocity of this object
The pickup coil in an electric guitar contains 10,000 turnsand has a diameter of 2.1 mm. When thepickup coil is very close to a guitar string, there is a field ofmagnitude B = 0.09 T in thecoil. If this steel string is vibrating at a frequency of2..
Two towboats are pulling a plane in the Hudson River. Towboat 1 pulls with a force V1 = 610.0N, at an angle of ?1= 41.0o. What is the direction of the net force
Three 14.05-g Styrofoam balls of radius 2 cm are coated with carbon black to create them conducting and then are tied to 1.23-m-long threads and suspended freely from a common point.
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