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The depth of a body of water can be found by emitting sound pulses at the surface and dectecting the pulses reflected from the bottom. If the time interval from emission to detection is 2 s, what is the depth of the water?
Determine the speed of M2 at a time 1.85 s after the system is free from rest.
A single loop of wire with a resistance of .3? and with a radius of 10 cm is laid flat in a magnetic field of 1.2 T out of the page. What is the induced current while its moving
You combine two thin lenses by placing them in contact so that their axes coincide, forming what is called a compound lens. The focal lengths of the lenses are 24.1 cm and –53.9 cm, respectively. Find the focal length of this compound lens?__________..
A proton enters the gap between a pair of metal plates (an electrostatic separator) that produces a uniform, vertical electric field between them. Ignore the effect of gravity on the proton.
An aluminum cup of mass 210 g contains 800 g of water in thermal equilibrium at 80.0°C. find At what rate is energy being removed by heat
An AC source has an output rms voltage of 99.5 V at a frequency of 43.0 Hz. The source is connected across a 27.0-mH inductor.
An 8.5kg crate is pulled 4.8m up a 30 degree incline by a rope angled 16 degrees above the incline. What is the increase in thermal energy of the crate and incline
If he struck a ball with the a speed and launch angle that would result in a maximum 120m horizontal range on Earth, how far would it go?
Assume that the rod is held at rest horizontally and then released. (Throughout the remainder of this problem, your answer may include the symbol, moment of inertia of the assembly, whether or not you have answered the first part correctly.)
Two identical probes are sent along the same path toward a neutron star. A neutron star is very dense, packing as much as 2 solar masses into a sphere with a radius on the order of 10 km. At the moment shown, the two probes are 59.7 km and 133 km ..
A bowling ball (m = 7.2 kg, r = 0.11 m) and a billiard ball (m =0.38 kg, r = 0.028 m) may each be treated as uniform spheres. Whatis the magnitude of the maximum gravitational force that each canexert on the other?
a certain ideal gas has a value of constant y (which is Cp/Cv) = 4.3. What is the molar specific heat at constant pressure
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