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The drawing shows a golf ball passing through a windmill at a miniature golf course. The windmill has 10 blades and rotates at an angular speed of 2.35 rad/s. The opening between successive blades is equal to the width of a blade. A golf ball (diameter 4.50 10-2 m) has just reached the edge of one of the rotating blades (see the drawing). Ignoring the thickness of the blades, find the minimum linear speed with which the ball moves along the ground, such that the ball will not be hit by the next blade.
A superball of mass 60g is dropped from a height of 2m . Itrebounds to a height of 1.80m. WHat is the change in its linear momentum
a helicopter is lifting two crates simultaneously. one crate with a mass of 148 kg is attached to the helicopter by
An AC voltage source, with a peak output of 200V is connected to a 50 ohm resistor. What is the rate of energy dissipated due to heat in the resistor
A test charge of +2 micro C is placed halfway between a charge of +6 micro C and another +4 micro C sperated by 10cm. what is the magnitude of the force on the test charge
A window washer pulls herself upward using the bucket-pulley apparatus shown in Fig. 4-42. The mass of the person plus the bucket is 60 kg. (a) How hard must she pull downward to raise herself slowly at constant speed? If she increases this force by ..
Examining your imange in a convex mirror whose radius of curvature is 24.6cm, Where is the image of your nose located
A 5 kg ball collides head-on with a 10 kg ball, which is initially stationary. The collision is inelastic. Which statement is true?
There are two capacitors of capacitance 5.0uF and 8.0uF are connected in series. Find the equivalent capacitance of the network and the charge on each plate of the capacitors
A wall clock has a second hand 20.0 long. What is the radial acceleration of the tip of this hand?
A material is formed into a long rod with a square cross section 0.59 cm on each side. What is the resistivity of the material
A digital audio compact disc carries data, each bit of whichoccupies 0.6 um along a continuous spiral track from the innercircumstance of the disc to the outside edge. Find the average angular acceleration of the disc
a piano note is compared to a tuning fork vibrating at 440 Hz. Four beats per second are discerned by the piano tuner. What was the initial frequency of the piano wire
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