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Solve the following problem given below:
Problem: A 287g ball is tied to a string. It is pulled to an angle of 4.0o and released to swing as a pendulum. A student with a stopwatch finds that 30 oscillations take 17s.
Part A- How long is the string?
Please show how you get the answer of above problem. Thank you.
Two long, parallel wires are separated by a distance of 2.1 cm. What is the current in the second wire? Express the answer with two decimal places
A person stretches a rope of length 55 m between the top of a building to the base of a tree d = 23 m away. How tall is the building.
For a short time, the path of the plane is described by If the plane is rising with a constant velocity of 10 m/s, determine the magnitudes of the velocity and acceleration
A ball falls straight down onto a wedge that is sitting on frictionless ice. The ball has a mass of 3.27 kg, and the wedge has a mass of 5.31 kg. what is the velocity of the ball after the collision
If the mass of a wheel is increased by a factor of 20 and the radius is increased by a factor of 3, find by what factor is the moment of inertia increased
A certain toaster has a heating element made of Nichrome resistance wire. What is the final temperature of the heating element
A black, totally absorbing piece of cardboard of area A = 3.0 cm2 intercepts light with an intensity of 3.9 W/m2, What radiation pressure is produced on the cardboard by the light
a magnet at the end of the dial-o-gram balance arm. the arm has an aluminum plate in the magnetic gap. what is the
It takes a force of 65.5N to compress the spring of a toy popgun 0.200m to "load" a 0.190kg ball. With what speed will the ball leave the gun
a 1200 kg cannon fires a 100.0 kg cannonball at 35 ms. what is the recoil velocity of the cannon? assume that
Can you please help me? In reaching her destination a backpacker walks with an average velocity of 1.37m/s due west. how far did she walk
An electron is accelerated through 2250 V from rest and then enters a region where there is a uniform 2.00 T magnetic field. What are the maximum and minimum magnitudes of the magnetic force acting on this electron
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