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The average density of a fish can be found by firstweighing it in air and then finding the apparent weight of the fishas it hangs completely immersed in water. If a fish has weight233.2 N and apparent weight20.3 N in water, what is the average density of the fish?
kg/m3
A drag racer crosses the finish line of a 304.8 m track with a final speed of 126 m/s. how long would it take to finish the race
A circular curve of highway is designed for traffic moving at 75 km/h. If the radius of the curve is 155 m, what is the correct angle of banking of the road
A massless rope connects two blocks through a frictionless pulley with a moment of inertia I = 0.4 kgm 2 and a radius R = 0.2 m. Find velocity of the second block just before it hits the ground
A 1.6 kg mass (initially at rest) compresses a spring (spring constant 1900 N/m) by 5×10?2 m, and is released. After colliding and sticking together, the two masses move up a frictionless inclined plane. What is the maximum height achieved by the ..
A 12.0 g bullet is fired horizontally into a 106 g wooden block that is at first at rest on a frictionless horizontal surface and connected to a spring having spring constant 143 N/m.
What would the first allowed orbital be for a particle whose mass is 2 x 10 ^ -39 kg and velocity was 30% the speed of light
A box slides across a frictionless floor with an initial speed v = 4.9 m/s. It encounters a rough region where the coefficient of friction is uk = 0.3. What is the shortest length of rough floor which will stop the box
A higway curve with a radius of 400m is banked properly for a car traveling 120km/h. how much sideways force must the tires exert
An 800 kHz radio signal is detected at a point 9.5 km distant from the transmitter tower. Find the average electromagnetic energy density
A diffraction grating 1.5 mm wide produces the 5th order at 45 degrees with light of wavelength 650 nm on a screen 80 mm away. Suppose a transparent rectangular case of water is placed 60 mm to the right of the diffraction grating. What is the angle ..
Your spaceship lands on an unknown planet. To determine the characteristics of this planet, you drop a 1.30 kg wrench from 3.50 m above the ground, What is the mass of the planet
If the electric field in an EM wave has a peak value of 0.45X10^-4 V/m, what is the peak value of the magnetic field strength
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