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An apple weighs 1.01 . When you hang it from the end of a long spring of force constant 1.56 and negligible mass, it bounces up and down in SHM. If you stop the bouncing and let the apple swing from side to side through a small angle, the frequency of this simple pendulum is half the bounce frequency. (Because the angle is small, the back and forth swings do not cause any appreciable change in the length of the spring.)
What is the unstretched length of the spring (i.e., without the apple attached)? (in meters)
In fair weather, over flat ground, there may be a downward electric field of 155 N/C. Calculate the charge density of the air
A 25 N force at 60° is required to set a crate into motion on a floor. What is the value of the static friction
Take two containers, each with volume 0.1 m3, containing ideal gases of monatomic He at T= 104 K and diatomic N2 at T = 236 K, What is the change of dimensionless entropy solely due to the fact that the gases have more volume accessible
Integrated circuits are manufactured in vacuum chambers in which the air pressure is 9.00×10?11mm of Hg. What is the mean free path of a molecule
A particle of charge q = e moves in a circle of radius = 0.42 m with speed v = 2.150×107 m/s. find the maximum torque exerted on the loop by a uniform magnetic field of magnitude B = 0.60 T
The specific heat of granite is 0.80 kJ/kg x C. If 106 MJ of heat are added to a 100-kg granite statue of James Prescott Joule that is originally at 18 degrees C
q1. for an ideal atwood machine has a massless pulley of radius 10 cm which moves without friction and has masses of 2
There are two major types of aberration (defective image formation) in lenses: spherical and chromatic. Spherical aberration comes from fact that a spherical lens has the property of focusing parallel rays to a single point only approximately.
How much work is needed to move it at constant speed.
A lightning flash may transfer up to 30 C of charge through a potential difference of 10^8 V. How much energy does this involve
A hydrogen atom is in the ground state. It absorbs energy and makes a transition to the n = 6 excited state.find the photon wavelengths of first and second transitions
A paperweight, when weighed in air, has a weight of W = 7.3 N. When completely immersed in water, Find the volume of the paperweight
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