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A 15,000?metric ton battle cruiser at rest fires a salvo of six 8?inch shells at a 45o angle with a muzzle velocity of 350 m/s. If each shell weighs 500N, how far has the cruiser recoiled by the time its salvo hits their target? Ignore all frictional and inertial effects of the water.
A stone is thrown vertically upward with a speed of 12.3 m/s from the edge of a cliff 84.6m high. What is the speed just before hitting.
A simple model considers a continent as a block (density ? 2800 kg/m3), estimate the height of the continent above the surrounding mantle rock
how is the graph of the total volume of a bathtub while the water inflow rate follows a seesaw pattern for half of the time and the similar pattern for outflows on the other half.
A crate of weight W=550 lb has been attached to a pickup truck by a rope whose tensile strength is T_max=350 lb. determine the maximum acceleration of the truck
Treating our rigid legged friend as a particle, what is the average force his feet exert on the ground when he slows down.
A 800kg car pushes a 1800kg truck that has a dead battery. When the driver steps on the accelerator, What is the magnitude of the force of the car on the truck
An object weighs 475 "grams" in air and 345 "grams" when immersed in water. what is the volume of the object
The weight of the car is 14 kN. You know three points on the plane, What is the force of friction (Ff=?).
A car is traveling with a constant velocity when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s2, what was the magnitude of the car's original velocity
In a certain particle accelerator, a current of .5mA is caried by a 5-MeV proton beam that has a radius of 1.5 mm. Find the power consumption of the accelerator
The resolving power of a microscope depends on the wavelength used. If you wanted to "see" an atom, a wavelength of approximately 1 × 10-11 m would be required.
A small cube, s=0.25m, sits on a surface where a uniform electric field of 250.0 N/C is directed downward at a 35.00 angle to the horizontal, Find the flux through either of the two sides for which flux is maximum
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