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You have a simple pendulum that's 1.4m long and has a 100g mass at the end. In Lewis Hall, what is the period of the pendulum? You then take this pendulum to the moon and measure the period again. What is the new period? Moon gravity is one sixth of earth's.
In one type of computer keyboard, each key holds a small metal plate that serves as one plate of a parallel-plate, air-filled capacitor. Calculate the capacitance before the key is depressed
A 10cm x 10cm x 10cm box contains 0.010 mol of nitrogen at 20 degrees Celsius. What is the rate of collisions (collisions/s) on one wall of the box
The displacement vectors 44.5 cm at 15.0° and 23.0 cm at 51.0° both start from the origin and form two sides of a parallelogram. Find the area of the parallelogram
T thin lense with a focal length of 50 cm is placed 100 cm from an object. How far behind the lense should we place a screen
q1. a certain metal with atomic mass 2.6 times 10-25kg has an interatomic bond with length 1.7 times 10-10 m and
Horseshoe bats (genus Rhinolophus) emit sounds from their nostrils, then listen to the frequency of the sound reflected from their prey to determine the prey's speed. calculate the speed of the insect
The force stretching the D string on a certain guitar is 170 N. The string's linear mass density is 0.006 kg/m, What is the speed of the waves on the string
How fast is the roller coaster moving at the top of the loop
q1. an electric circular saw is designed to reach its final angular speed starting from rest in 1.40 s. its average
an electric on a airplane operates 20.8 volts a draws a current of 14.7amps. How much energy in joules does the motor use
A 1 uF capacitor is charged when it is connected across a 9 V battery, Find the final charge and the voltage across the plates for the 1 uF and 2 uF capacitor
A small puck of mass m=0.1kg moves in a circle of radius 0.3m on a table top; the puck is tied with a massless string to a tether at the origin. find the tension in the string at the end of one revolution
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