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The intensity of the Sun's light in the vicinity of the Earth is about 930 W/m2. Imagine a spacecraft with a mirroredsquare sail of dimension 1.22 km. Estimate how much thrust (innewtons) this craft will experience due to collisions with theSun's photons.
Unpolarized light with intensity I0 is incident on two polarizing filters. The axis of the first filter makes an angle of ? = 60 ? with the vertical, What is the intensity of the light after it has passed through the second filter
A wire has a length of 4.18 x 10-2 m and is used tomake a circular coil of one turn. There is a current of 8.34 A in the wire. In the presence of a 6.34-T magnetic field, what is the maximum torque that this coil can experience?
A wheel spinning at 25 rev/s is slowed to a stop by a constant acceleration while turning 50rev. What is the magnitude of the constant acceleration
a beam of light with red and blue components of wavelengths 670 nm and 425 nm respectively strikes a slab of fused
The radius of the moon is 1.74 × 106 m, the radius of the sun is 6.96 × 108 m, the average moon-earth distance is 3.84 × 108 m, and the average sun-earth distance is 1.496 × 1011 m. What is the apparent angle the diameter of the moon subtends, ..
A car (mass 930 kg) is traveling with a speed of 48 mi/h. A bug (mass 6 mg) is traveling in the opposite direction. What speed would the bug need
When two capacitors are connected in series the equivalent capacitor is 120uF. What are the individual values of each capacitor
A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.2 m/s and the tension in the rope is T = 19.7 N. 5) Return to the original ..
Water at a pressure of 3.00*10^5 Pa flows through a horizontal pipe at a speed of 1.00 m/s. The pipe narrows to one-fourth its original diameter
Incurred expenses of $220,000 for its alcohol rehabilitation program but paid the expenses from unrestricted resources, not from available restricted resources.
The smallest insects that a bat can detect are approximately the size of one wavelength of the sound the bat makes. What is the minimum frequency of sound waves needed for the bat to detect an insect that is 0.53 cm long? (Assume the speed of soun..
he femur is a bone in the leg whose minimum cross-sectional area is about 3.1 x 10-4 m2. Find the maximum stress that this bone can withstand
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