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A projectile is fired horizontally from a gun that is 55.0 m above flat ground, emerging from the gun with a speed of 360 m/s. (a) How long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike the ground? (c) What is the magnitude of the vertical component of its velocity as it strikes the ground?
you step onto a hot beach with your bare feet. a nerve impulse generated in your foot travels through your nervous
King Arthur's knights use a catapult to launch a rock from their vantage point on top of the castle wall, 13m above the moat. The rock is launched at a speed of 27m/s and an angle of 40oC above the horizontal.
A package of mass m is released from rest at a warehouse loading dock and slides down a 3.0-m-highfrictionless chute to a waiting truck. To what height does the package of mass m rebound
A bird watcher meanders through the woods, walking 1.35 km due east, 1.81 km due south, Determine the magnitudes of the bird watchers displacement
An electron moves in a force field due to a uniform electric fied E=E(i+j) and a uniform magnetic field B=Bk. Take the initial position of the electron at the origin with initial speed Vo=Vox i in the x direction
Unpolarized light with intensity I0 is sent ?rst through a polarizer with the polarizing axis aligned in the vertical direction, and then through a second polarizer with the polarizing axis oriented 30° from the vertical. What is the intensity of ..
A typical ten-pound car wheel has a moment of inertia of about0.35 \; \rm kg\cdot m^2. The wheel rotatesabout the axle at a constant angular speed making 70.0 fullrevolutions in a time interval of 7.00 s.
A 3.00-kg block is connected to two ideal horizontal springs having force constants k1 = 28.0N/cm and k2= 19.0N/cm What is the maximum speed of the block
An airplane has an effective wing surface area of 15 m2 that is generating the lift force. What is the weight of the plane
a step-down transformer converts 120v ac to 6.00v ac rms values and the secondary winding is connected to a purely
q1. a certain kind of glass has an index of refraction of 1.660 for blue light of wavelength 420 nm and an index of
A supertanker filled with oil has a total mass of 11.7·108 kg. If the dimensions of the ship are those of a rectangular box 209 m long, 81.7 m wide
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