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The intensity of sunlight hitting the Earth is about 1300 W/m^2.
(a) Find amplitude of the electric field.
(b) Find amplitude of the magnetic field.
(c) How much pressure (per sq.meter) does it exert.
Suppose that the sound level of a conversation is initially at an angry 70 dB and then drops to a soothing 50 dB. Assuming that the frequency of the sound is 500 Hz, determine the (c) initial and (d) final sound wave amplitudes.
Find out the maximum torque on the wire. A bullet of mass 5g is fired horizontally into a wooden block of mass 1.26kg resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.16.
A person stands on a scale in an elevator. As the elevator starts, the scale has a constant reading of 590 N. Determine the magnitude of acceleration of the elevator
An 8.54kg block of ice at 0 %u2218C is sliding on a rough horizontal icehouse floor (also at 0 %u2218C) at 15.2m/s, What is the maximum amount of ice that will melt
A wire 83.0 cm long lying along the x axis carries a current of 360.0 mA in the positive x direction, Find the magnitude of the force on the wire
Calculate the force required to pull a copper ball of radius 3.00 cm upward through a fluid at the constant speed 6.00 cm/s
A 1200kg car (A) traveling due north at 25m/s collides with a 2000kg truck traveling due west at 18m/s. What is the velocity of the wreckage just after the collison
A 18.0 kg block is being pushed up a ramp by a force FP = 150 N acting horizontally. Determine the work done on the block by the frictional force
A baseball (m = 148 g) approaches a bat horizontally at a speed of 41.5 m/s (93 mi/h) and is hit straight back at a speed of 45.9 m/s (103 mi/h).
A yo-yo is made of two solid cylindrical disks, each of mass 0.052 kg and diameter 0.070 m, joined by a (concentric) thin solid cylindrical hub of mass 0.0053 kg, What fraction of its kinetic energy is rotational
So you have two different systems both equal contained in a case with the same volume and area. Both cases are in two separate rooms of the same area and volume. Which room is has a higher peak temperature
Calculate the kinetic energy a proton gains if it is accelerated, throug a potential difference of 1.00 V
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