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You are standing 1.20 m from a 1,600-W heat lamp. Part 1:
(a) Assuming that the energy of the heat lamp is radiated uniformly in a hemispherical pattern, what is the intensity of light on your face? W/m2 Part 2:
(b) If you stand in front of the heat lamp for 2.00 minutes, how much energy is incident on your face? (Assume your face has a total area of 2.8 × 10-2 m2.) J Part 3 out of 3
(c) What are the rms electric and magnetic fields? Give answer with scientific notation.
Consider purchasing a new tire with a warranty of 6.4 x 10^7 meters. Calculate the thickness of the tread that will be worn away with each revolution of the tire
A dog running in an open field has components of velocity vx = 3.5m/s and vy = -1.4m/s at time t1= 10.7s. For the time interval from t1 = 10.7s to t2= 19.1s, What is the magnitude of the dog's velocity
In a double-slit experiment, two parallel slits are illuminated first by light of wavelength 474 nanometer, Evaluate what is the unknown wavelength
FUNDAMENTALS OF ANALOG COMMUNICATIO,Define communication.Define modulation,Why modulation is needed?
a small glass bead charged to 6.6 nc is in the plane that bisects a thin uniformly charged 10-cm -long glass rod
A potter's wheel is a uniform solid disk of diameter 0.72m and a mass of 60kg. what minimum total friction force must the potter supply to the disk if her hands are acting at the edge of the disk
Here is a simple heat engine: Start with 20 moles of monatomic gas, occupying 0.50 m3 of volume at 400 K. Calculate the temperature at the end of each process
A magnetic field has a magnitude of 0.0018 T, and an electric field has a magnitude of 3.4 × 103 N/C. Both fields point in the same direction. find the magnitude of the net force that acts on the charge
The dimensions of atomic nuclei are of the order of 10^-13m. Suppose that two a-particles (the nucleus of helium, mass of 6.68 x 10^-27 kgm and a charge of 3.2 x 10^-19 coul.) are separated by this distance.
When the power is turned off on a turntable spinning at 78 rpm, you find that it takes 10.5 revolutions for it to stop while slowing at a constant rate. How much time passes until it stops
A fixed 0.16 kilogram solid disk pulley with a radius of 0.065 meter is acted on by a net torque of 6.3 m•N. Evaluate what the angular acceleration of the pulley
A photon of green light (wavelength = 532 nm) and a Ping-Pong ball (mass = 2.90 10-3 kg) have the same momentum
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