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The wheel in Fig. 10-30 has eight equally spaced spokes and a radius of 30 cm. It is mounted on a fixed axie and is spinning at2.5 rev/s. You want to shoot a 20-cm-long arrow parallel to this axle and through the wheel without hitting any of the spokes. Assume that the arrow and the spokes are very thin.
(a) What minimum speed must the arrow have?
(b) Does it matter where between the axle and rim of the wheel you aim? If so, what is the best location?
One mole of a dilute gas initially has a pressure equal to 1.00 atm, and a volume equal to 13.0 L and an internal energy of 1.98 kJ. As the gas is slowly heated, Find the heat absorbed by the gas
calculate the work done on a charge Q. If an automobile rounds this curve at 30 {rm m/s}, what is the least coefficient of static friction between tires and road needed to prevent skidding.
A baseball is hit so that it travels straight upward after being struck by the bat. Find the ball's initial velocity in m/s upward
A narrow beam of light is incident normally on one face of equiangular glass prism of RI 1.45. Find the refractive index of this liquid and draw a diagram showing the path of rays
In a car lift, compressed air with a gauge pressure of 4.0 x 105 Pa is used to raise a piston with a circular cross-sectional area. what is the maximum mass that can be raised using this piston
Ultrasound with a frequency of 4.25 MHz can be used to produceimages of the human body. What is the wavelength in the body
When a capacitor, battery, and resistor are connected in series, does the resistor affect the maximum charge stores on the capacitors? Why or why not? What purpose does the resistor serve?
explosives are used to blow a rock apart. the explosion blows the rock into three fragments. two fragments go off at a
A 10 kg weight is put on the weightless piston of the cylinder (20 cm in diameter) filled with oxygen gas (P=101.3kPa, V=1m^3). Calculate the volume of the compressed gas
A flywheel with a diameter of 0.510 m is rotating at an angular speed of 178 rev/min. What is the linear speed of a point on the rim of the flywheel
in a race john runs 1.00 mile in 4.02 min mounts a bicycle and rides back to his starting point which is also the
A point source of light illuminates an aperture 2.00m away. How wide is the aperture
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