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An FM radio station broadcasts electromagnetic waves at a frequency of 550 kHz. The velocity of electromagnetic waves in air is 3x10^8 m/s. Calculate the wavelength of the waves.
The loaded cab of an elevator has a mass of 1.7 x 103 kg and moves 239 m up the shaft in 19 s at constant speed. At what average rate does the force from the cable do work on the cab.
A dockworker applies a constant horizontal force of 79.0N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 15m in a time 4.50s. What is the mass.
find the magnitude of the baseballs momentum.
Find the equivalent resistance of two resistors connected in parallel if one is 0.5 ohm and the other 0.33 ohm, what current will flow through the 10-ohm resistor
a thin rod of length 10.3m and mass 20kg is supported at a 30 degree incline. one support is 2.4m and the other is 8.3m from the lower end of the rod, Find the normal force exerted on the rod by the upper support answer in units of N
A cylindrical capacitor has an inner conductor with a radius of 1.6mm and an outer conductor with a radius of 3.8mm, A cylindrical capacitor has an inner conductor with a radius of 1.6mm and an outer conductor with a radius of 3.8m
A coil of wire has a resistance of 38.0 ? at 25° C and 43.7 ? at 52° C. What is the temperature coefficient of resistivity
If the maximum acceleration the vehicle’s brakes are capable of is −6 m/s2, illustrate what is the maximum reaction time of the motorist that will allow her or him to avoid hitting the deer?
strikes the wooden block of a ballistic pendulum, as shown. The block has a mass of 270 g. Find out the speed of the bullet/block combination immediately after the collision.
A 95 kg man standing on a surface of negligible friction shoves a 75 g stone lying at his feet, giving it a velocity of 4.0 m/s. What velocity does the man obtain accordingly.
Compute the Force of Friction (Ff) for a 5kg aluminium block being pulled with constant velocity (uniform motion), up the steel plank that is at a 30degrees angle to the horizontal.
What is the frequency of the note played by this pipe.
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