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Question: About 50000 years ago, a meteor crashed into the earth near present-day Flagstaff, Arizona. Recent (2005) measurements estimate that this meteor had a mass of about 1.4×108 kg (around 150000 tons) and hit the ground at 12 km/s.
Part A: How does this energy compare to the energy produced in one day by a standard coal-fired power plant, which generates about 1 billion joules per second?
If possible just a brief explanation how you got the answer?
two stationary positive point charges charge 1 of magnitude 3.50nc and charge 2 of magnitude 1.60nc are separated by a
A skateboarder, starting from rest, rolls down a 12.5 m ramp. When she arrives at the bottom of the ramp her speed is 6.10 m/s. (a) Determine the magnitude of her acceleration, assumed to be constant. .m/s2 (b) If the ramp is inclined at 26.5° wit..
At a recent rock concert, a dB meter registered 130 dB when placed 1.50 m in front of a loudspeaker on the stage. What was the power output of the speaker
A spring with an unstrained length of 0.073 m and a spring constant of 2.2 N/m hangs vertically downward from the ceiling. What is the magnitude of the external electric field
a 1.0cm -tall candle flame is 2.0m from a wall. you happen to have a lens with a focal length of 42cm . a how many
A 218.7 kg satellite is in a circular orbit of 26,273 miles (42,300,000 m) in radius. What is the velocity (speed) of the satellite
questiona capacitor is constructed from 2 square metallic plates of sidersquos scripted l and separation d. charges q
ball rolls horizontally off the edge of a tabletop that is 1.80 m high. It strikes the floor at a point 1.32 m horizontally away from the table edge. (Neglect air resistance.) (a) How long was the ball in the air? s (b) What was its speed at the i..
A 18.3- cm focal-length lens is used to project 35- mm slidesonto a screen 4.17 m from the projector lens. What must be thewidth of the screen ( m) if the image of the slide is to just fillthe screen? The width of the image on the slide is 34.3 mm.
A simple pendulum has a period of 2.5 s. What is its period if its length is made four times larger
a charge of -11.1 micro-coulombs is placed at the origin of a coordinate system. another charge of -12.1 micro-coulombs
Four moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 300 to 285 K. What is the work done by (or done to) the gas? Comprise the algebraic sign.
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