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A grandfather clock has a brass pendulum with a period of 1 sec at 20C. in the summer, the temperature of your house rise by 5 C.
By how much does the period of the pendulum change?
How long before the clock is off by 5 minutes?
The minimum-wavelength X-ray produced by a certain X-ray tube is 0.283 nm. Find the minimum voltage applied to the tube
A 60 kg person jumps from rest off a 5m high tower straight down into the water. find the average force that the water exerts on the diver
Use Newton law to determine the force applied to the backrest when a 150-lb person leans 40% of his or her body weight against it. Determine the constant requiered for the spring
q1. the lines in a grating are uniformly spaced at 1520nm. analyse the angular separation of the second order bright
An air bubble at the bottom of a lake 39.00 m deep has a volume of 1.00 cm3. what is the volume of the bubble just before it reaches the surface
a railroad car o.f mass 2.25 x 10^4 kg is traveling east 5.50 m/s and collides with a railroad car of mass 3.00 x 10^4 kg traveling west 1.50 m/s, find the velocity of the railroad cars
An iron wire has a cross-sectional area equal to 3.50x10^-6 m2. Carry out the following steps to determine the drift speed of the conduction electrons in the wire, Calculate the drift speed of conduction electrons in this wire
A 4.5-g object moving to the right at 30 cm/s makes an elastic head-on collision with a 9-g object that is initially at rest. What fraction of the initial kinetic energy was transferred to the 9-g block
What least number of grooves is required for a grating
A 0.410-kg blue bead slides on a frictionless, curved wire, Find the maximum height the green bead rises
The rear window of a car consists of thirteen thin wires (resistivity = 88.0 * 10^-8 ohms) embedded in the glass. Find the cross-sectional area of each wire
Darius the dare devil plans to launch his rocket car at the top a ramp inclined at 20.0 degrees to the horizontal over a pit of fire 20 m in diameter, Where will he land
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