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Question 1. Why are most modern telescopes reflecting telescopes? A) Lenses can easily breakB) Only visible light can be refractedC) Mirrors are easier to buildD) CCD cameras only work on reflecting telescopesE) none of the above Question 2. A typical amateur telescope is 7 inches in diameter, while the telescope we are installing at CSU Stanislaus is 21 inches in diameter. How much more sensitive is the CSU telescope than a typical amateur telescope?A) 2 timesB) 9 times C) 3 times D) 6 times E) 12 times Question 3. Which types of electromagnetic radiation can be seen from the surface of Earth? A) Gamma rays and X-rays B) Visible light and Infrared C) Infrared light and Radio waves D) Infrared and Ultraviolet E) Visible light and Radio waves Question 4. A neutral hydrogen atom consists of A) one protonB) an isotope and an ionC) one proton and one electronD) one proton, one neutron, and one electron. E) one proton and one neutron
Question 5. The temperature of an object from which no heat energy can be extracted is A) 100 degrees Kelvin B) 0 degrees Kelvin C) 0 degrees CentigradeD) 0 degrees Fahrenheit E) 100 degrees Centigrade
Before throwing a 1.49 kg discus, an athlete rotates it along a circular path of radius 1.18 m. The maximum speed of the discus is 25.7 m/s.
A long wire lying along the x-axis carries a current of 1.60 A in the +x direction. There is the uniform magnetic field present, given by B=0.003i + 0.004j + 0.002k, where i, j, k are the unit vectors along cartesian coordinate axes') in units of Tes..
A superhero flies 147 m from the top of a tall building at the angle of 33 degrees below the horizontal. What is the vertical component of the superhero's displacement.
Write down the original position of the system
Drag race tires in contact with an asphalt surface have an extremely high coefficient of static friction. Assuming a constant acceleration and no slipping of tires, estimation the coefficient of static friction needed for a drag racer to cover 1.0 km..
A positive charge of q = 3.5 µC is pulled on by two negative charges. One, -2.0 µC, is 0.050 m to the north and the other, -4.0 µC, is d = 0.029 m to the south. What total force is exerted on the positive charge .
All distant galaxies are moving away from us. Describe why this does not imply that we are at the center of universe.
How long is the bridge? Write down an equation for the bridge's height. And how far from the center of the bridge are two points if bridge's height at those points is 80 meters.
What is kinetic energy of the shell
A 9.05 kg projectile is fired vertically upward. Air drag decreases the mechanical energy of the projectile-Earth system by 77.5 kJ throughout the projectile's ascent. How much higher would the projectile have gone were air drag negligible.
An airplane flies 200 km due west from city A to city B and then 315 km in the direction of 33.0° north of west from city B to city C.
The lander is 8.2 meters above the surface and has the downward speed of 0.89 m/s while the engine is cut off. What is the speed of the lander just before it touches the surface.
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