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There is a delay from the time someone sees a flash of lightning to the time that thunder is heard due to the time it takes for sound to travel from where the lightning struck to where you are when you hear the thunder. If you hear thunder 13 seconds after seeing the lightning, how far away did the lightning bolt strike? Take the speed of sound in air to be 343 m/s. Answer in metres.
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear
Calculate how much higher the pendulum would swing if the collision was totally elastic instead of inelastic (that is, calculate the difference between the heights achieved through each collision)
a quarterback claims that he can throw the football a horizontal distance of 183 m 200 yd. furthermore he claims that
A gun is fired vertically into a 1.40 kg block of wood at rest directly above it. how high will the block rise into the air after the bullet becomes embedded in it
How far does the water travel with your thumb over the end of the hose (assuming the height and angle remain the same)
Give an example in which the net right-lateral differential of Ey and Ez normal to the x-direction is zero, although the individual derivatives are nonzero.
at a time when mining asteroids has become feasible astronauts have connected a line between their 3120-kg space tug
For the ionospheric model in Problem 7.5, calculate the differential delay at the opposite extremes of the transmitted frequency spectrum for a wave with center frequency 12.4 GHz and with a bandwidth of 400 MHz.
A generating station is producing 2.00 106 W of power that is to be sent to a small town located 8.0 km away. Find the power used to heat the wires if the power is transmitted at 1300 V
Calculate the total level from the three fans at the window. (Note that you do not need to A-weight anything in this problem) LMSC-209W Midterm Exam
A piano wire with mass 3.20 g and length 77.0 cm is stretched with a tension of 25.0 N. Calculate the average power carried by the wave
A small sphere with a mass of 4.00 x 10-6 kg and carrying a charge of 5.00 x 10-8 C hangs from a thread near a very large, charged insulating sheet. Find the angle of the thread
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