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Four length measurements are carried with the following results: 4.5 cm, 4.2 cm, 4.8 cm, and 4.4 cm. What is your best estimate of the true length? What is the standard deviation of the measurements? Identify the range within which the true value of the length is expected to lie with 95.4% probability.
The electric field on the axis of a uniformly charged ring has magnitude 400kN/C at a point 5.6cm from the ring center, Find the rings radius and charge
6.00g of nitrogen gas at 22.0 degree celsius and an initial pressure of 4.00atm undergo an isobaric expansion until the volume has tripled, What amount of heat energy is transferred from the gas as its pressure decreases
wo small metallic spheres, each of mass m = 0.220 g, are suspended as pendulums by light strings of length L, How long are the strings
A 0.48-kg object connected to a light spring with a force constant of 23.6 N/m oscillates on a frictionless horizontal surface. The spring is compressed 4.0 cm and released from rest.
what will be the frequency of vibrations. At one instant a bicyclist is 70m due east of a park's flagpole, going due south with a speed of 15m/s. Then, 19s later, the cyclist is 65m due north of the flagpole, going due east with a speed of 14 m/s.
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. What is the net charge of all these electrons
What is specific gravity of this other fluid
The cubit is an ancient unit. Its length equals six palms. (A palm varies from 2.50 to 3.50 inches depending on the individual.) We are told Noah's ark was 300 cubits long, 50 cubits wide and 30 cubits high.
Stuck in the middle of a frozen pond with only your physics book, you decide to put physics in action and throw the 3.75-kg book. how fast do you then slide across the ice
Zinc has a density of 7.14 g/cm3, and the mass of a zinc atom is 1.09 10-25 kg. What is the distance between the centers of adjacent atoms
a ball is thrown upward from the roof of a building, passes the roof going down three seconds later, how fast did the ball strike the ground
What will be the resulting speed of the boat. A 74 kg fireman slides down a 4-m pole by applying a frictional force of 384 N against the pole with his hands. If he slides from rest, how fast is he moving once he reaches ground.
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