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1. Given the value for the universal gravitational constant, the average value for the acceleration due to gravity at the surface of Earth, and the radius of Earth, determine Earth's mass. Note: Use 6.37 x 106 m as the Earth's radius? Show all work.
2. Density is a measure of the mass per unit of volume for a material. Mathematically, this can be expressed in units of kg/m3. Given that the equation for the volume of a sphere is based on radius, determine the density of Earth. Show all work.
3. An 800 g rock is tied to a string and whirled in a vertical circle with a 75 cm radius and a frequency of rotation of 1.6 Hz.
a) Assuming a constant velocity, determine the tension in the rope at the top of the circle. Show all Work.
b) Assuming a constant velocity, determine the tension in the rope at the bottom of the circle. Show all work.
A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.
A resistor is in the shape of a cube, with each side of resistance R . Find the equivalent resistance between any two of its adjacent corners.
Question: Field and force with three charges? What is the electric field at the location of Q1, due to Q 2 ?
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Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.
Illustrate the cause of the components accelerating from rest down the conveyor.
Calculate the dc voltage applied to the circuit.
Quadrupole moments in the shell model
Determine the tension in each string
Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.
Evaluate maximum altitude?
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