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A 3.1 kg block slides down a frictionless ramp, as shown in the figure. The top of the ramp is 1.6 m above the ground; the bottom of the ramp is 0.29 m above the ground. What is the speed of the block when it hits the ground?
What is the speed of the block when it leaves the ramp?
A thin uniform rod has a length of 0.520m and is rotating in a circle on a frictionless table. The axis of rotation is perpendicular to the length of the rod at one end and is stationary. What is the mass of the bug
A coil of inductance 110 mH and unknown resistance and a 1.4 ?F capacitor are connected in series with an alternating emf of frequency 980 Hz. what is the resistance of the coil
A helicopter is ascending vertically with a speed of 9 m/s. At a height of 200 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach ground.
A potter's wheel is rotating around a vertical axis through its center at a frequency of 1.8. What is the frequency of the wheel after the clay sticks to it
If a person exerts 44 N of force on the back of a seat while stopping in 0.4 seconds, what is the impulse on the seat back?
A bullet is shot out of a gun with a 61 cm barrel at a speed of 410 m/s into a block of wood. The bullet enters the wood 13 cm. Illustrate what force does the block exert on the bullet? What is the time it takes?
A 0.255 kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.200 kg puck that is initially moving along the x axis with a velocity of 2.06 m/s. After the collision, the 0.200 kg puck has the speed of 1.02 m/s at an ang..
Nichrome wire of cross-sectional radius 0.780 mm is to be used in winding a heating coil. find the length (in meters) of wire needed to wind the coil
A 52kg ballet dancer stands on her toes during a performance with four square inches (26cm2) in contact with the floor. What is the pressure exerted by floor over the area of contact in some cases.
A person's eyeball has a diameter D (measured from lens to retina). find Where is this person's near point and far point
Air is confined at atmospheric pressure (101.3 kPa) in a cylinder whose volume is 0.22 m3. Calculate the increase in internal energy of the air
A solenoid is to have an inductance of .272 mH, a cross-sectional area of 6.15x10^-4, and a length of 33.3 cm. How many turns per unit length should it have
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