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If a mobile phone in an automobile traveling at 50 m/s approaches a second automobile coming toward it at a speed of 40 m/s, what is the maximum Doppler shift the mobile phone can experience if it receives signals from a base station transmitting at 900 MHz, indirectly by way of reflection from the second automobile?
A physicist lost in the mountains tries to make a telescope using the lens from his reading glasses. They have powers of +2.0 D and +4.5 D, respectively. What maximum magnification telescope is possible?
A pendulum clock is moved from the Mississippi Delta region to the Rockey Mountains. Will theclock run faster or slower in the Rockies? Why? How can it beadjusted to compensate for this change?
Given ri, ro, that the top bar is moving to the left with constant speed vt, and that the bottom bar is moving to the right with speed vb and acceleration ab, determine the velocity and acceleration of the center of the disk at C.
If a student plays a white key on the keyboard and it has a frequency of 395 Hz, what will be the most likely frequency of the next black key
A cylinder with a movable piston contains gas at a temperature of 27°C, a volume of 1.5 m³, and an absolute pressure of 20,000 Pa. What will be the final temperature if the gas is compressed 2.7 m³ and the absolute pressure increases to 80,000 Pa.
question an archer about to shoot an arrow is applying a force of 320 n to a drawn bowstring. the bow behaves like an
The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.0500 kg and is moving along the x axis with a velocity of +7.08 m/s. It makes a collision with puck B, which has a mass of 0.100 kg and is initially at res..
What was the initial negative charge on one of the spheres, and what was the initial positive charge on the other?(Hint: Use charge conservation and solve for one of the initial charges. You will end up with a quadratic equation. The solutions giv..
A ski jumper leaves the ski track moving in the horizontal direction with a speed of 25.0 m/ s. Obtain the velocity when the jumper lands
If you double a blackbody's temperature, by what factor does its radiated power increase
A small glass bead has been charged to +30.0nC. What is the charge on the ball bearing
A 38.0 kg wheel, essentially a thin hoop with radius 2.40 m, is rotating at 460 rev/min. It must be brought to a stop in 23.0 s. (a) How much work must be done to stop it? (b) What is the required average power? Give absolute values for both parts.
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