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Your car has a rear view mirror that is convex with a radius of curvature of 5 m. A car is approaching you from the rear. Calculate the demagnification of the image of the approaching car as seen by you when it is 45 m behind the mirror. If the approaching car is coming towards you at 20 mph, how fast does it appear to be approaching you as seen in your rear view mirror.
A circular coil has a 20.0 cmradius and consists of 30.0 closelywound turns of wire. If no current is in the coil, what magnetic flux links its turns
In particular, if a 2.000Å (.2nm) photon interacts with the bound electron in an hydrogen atom (binding energy 13.6 eV) with a Compton collision. What is the energy of the scattered photon
You are designing a diving bell to withstand the pressure of seawater at a depth of 220 m. What is the gauge pressure at this depth? (You can ignore changes in the density of the water with depth.)
What is the tension in (a) the nearer (relative to the person) cable and (b) the farther (relative to the person) cable.
Male Rana catesbeiana bullfrogs are known for their loud mating call. The call is emitted not by the frog's mouth but by its eardrums, which lie on the surface of the head. And, surprisingly, the sound has nothing to do with the frog's inflated th..
an electron of mass 9.11x10-31 kg has an initial speed of 2.40x105 ms. it travels in a straight line and its speed
an electron is located on the x axis at x0 -9.89 times 10-6 m. find the magnitude and direction of the electric field
a wire has a current density of 18 amm2. if the drift velocity is 5.0times10-8 ms how many free electrons does the
A solid sphere with a radius of 0.70 m can be rotated about an axis through its center by a torque of 10.5 N *m which accelerates it uniformly from rest through a total of 180 revolutions in 15.0 s
If a red laser light (He-Ne Laser) with a wavelength of 633 nm and a frequency of 4.739 *10^14 Hz, at what angle will the first order diffrection angle be
One piece of 50 g ice at 0C is added to m grams of water at 25C. The system is insulated from outside and the exchange of heat is limited to ice and water only. find the total change in entropy
he first person is initially moving forward with a speed of 2.50 m/s, and the second person is initially at rest. Illustrate what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and ..
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