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A meter stick weighing 150 g sits on two knife edges, one at the 20 cm mark the other at the 90 cm mark. What is the total upward normal force (in N) exerted by both knife edges?
A small plastic bead has been charged to -15nC, What is the magnitude of the acceleration of a proton that is 0.90cm from the center of the bead
In the school cafeteria, a trouble-making child blows a 10.0 g spitball through a 30.0 cm straw. What was the maximum force on the spitball
If you fill your tank with 41 of gasoline, by how much does the car's mass increase
Visible light passes through a diffraction grating that has 900 slits per centimeter, and the interference pattern is observed on a screen that is 2.56 m from the grating. In the first-order spectrum, maxima for two different wavelengths are separ..
Assuming the density of seawater is 1.03 g/cm3, find the total weight of water on top of a nuclear submarine at a depth of 155 m, what water pressure would a diver experience at this depth
The position of a 50 g oscillating mass is given by x(t) = (2.0 cm) cos(5t), where t is in seconds. Determine the following. (a) The amplitude. (b) The period. (c) The spring constant. (d) The maximum speed
A load of bricks with mass = 15.4 kg hangs from one end of a rope that passes over a small, frictionless pulley. What is the tension in the rope while the load is moving
Heather in her Corvette accelerates at the rate of (3.20i - 2.00j) m/s2, while Jill in her Jaguar accelerates at (1.00i + 3.20j) m/s2. How far apart are Heather and Jill
A proton in a tin nucleus is known to lie with in a sphere whoes diameter is about 1.2x10^-14m. what is the uncertainty in the momentum of the proton
A pair of slits, separated by 0.170 mm, is illuminated by light having a wavelength of ? = 624 nm. What is the path difference for the two slits at the location y
What is the electric potential at the surface of a gold atom’s nucleus, which is assumed to be spherical? The radius of a gold nucleus is 6.6*10^-15 meters and the atomic number of gold is 79.
A 4.15 volt battery is connected across a parallel plate capacitor. Find the speed of the electrons when they reach the positive plate
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