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A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 27.5 s.
(a) How tall is the tower?
(b) If this pendulum is taken to the Moon, where the free-fall acceleration is 1.67 m/s2, what is the period there?
The outside mirror on the passenger side of a car is convex and has a focal length of -8.5 m. Find the image distance of the truck
1. which of the following compounds are insoluble in water?pbso4 beoh2 mgno32 alpo4 nh4i all are insoluble2. what is
An electric field of magnitude 5.25 105 N/C points due west at a certain location. Find the magnitude and direction of the force on a
Calculate the electrical potential at the center of the square described as follows: Four charges are placed at the corners of a 20 cm square
Two charges charges of -2.1 micro-coulombs and a charge of +2.1 micro-coulombs are placed on the corners of an equilateral triangle where the length of a side is 44 cm as shown in the sketch below. What is the magnitude of the total electric field..
Two packing crates of masses 10.0 kg and 5.00 kg are connected by a light string that passes over a frictionless pulley. Find the tension in the string between the crates
An astronaut is traveling in a space vehicle that has a speed of 0.515c relative to Earth. The astronaut measures his pulse rate at 69.0 per minute. What pulse rate does the Earth observer measure
A charge of q = +10-7 C is uniformly distributed on a spherical shell of radius 12 cm. What is the electric potential at the center of the shell
The current in a coil drops from 4.1 A to 2.4 A in 0.49 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil
On a clear day at a certain location, a 123-V/m vertical electric field exists near the Earth's surface. Compute the energy density of the magnetic field
A space freighter has a total mass of 1.00*10^6 kg. The captain wants to travel to a destination 1.00 light years away in 12 years, Approximately how much mass must be converted energy
q1. a chair of weight 74.0 n lies atop a horizontal floor the floor is not frictionless. you push on the chair with a
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