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A 160 pound pilot of an airplane executes a constant speedloop-the-loop maneuver in a vertical plane. The speed of theairplane is 300 mph and the radius of the circle is 1200 ft.
a) what is his apparent weight at the highest point?
b) What is his apparent weight at the lowest point?
c) Describe how the pilot could experience weightlessness if boththe radius and the speed can be varied?
A 0.49 kg block attached to a spring with force constant 150 N/m is free to move on a frictionless, At that instant, find the force on the block
two polarizers are oriented at 72 degress to one another. Unpolarized light falls on them. What fraction of the light intensity is transmitted
Light that enters your eyes is focused to form an image on your retina. The optics of your visual system have a total power of about +60 about +20 from the lens in your eye and +40 from the curved shape of your cornea. Surgical procedures to corre..
assume the earth to be sphere of a uniform densitya what is its rotational energy? take the radius of the earth to be
Consider a series RLC circuit with R =15 ohms, L = 192 mH, C = 75 µF, and a maximum voltage of 154 V. What is the impedance of the circuit at resonance?
Earth has a radius of 6.38 × 106 m, and is about 1.50 × 1011 m from the Sun. Mars has a radius of 3.40 × 106 m, what is the intensity of electromagnetic solar radiation at Mars
In an experiment designed to measure the speed of light, a laser isaimed at a mirror that is 59.0 km due north. A detector is placed138 m due east of the laser. The mirror is to be aligned so that light from the laser refelects into the detector.
Your toaster has a power cord with a resistance of 2.2×10?2 connected in series with a 9.9 nichrome heating element. How much power is dissipated in the power cord
A magnetic field is perpendicular to the plane of a single-turncircular coil. The magnitude of the field is changing, so that anemf of 0.65 V and a current of3.1 A are induced in the coil. The wire isthe re-formed into a single-turn square coil, w..
An object has a kinetic energy of 313 J and the momentum of magnitude 24.1 kg·m/s. Find out the speed and the mass of the object.
A fan on a car engine is running at an operating speed of 1500RPM when it experiences an angular deceleration of 42.5 rad/s2 for30.0 revolutions. (a) determine the final angular speed of the fanin rpm (b) how long does it take to reach this speed?
A 10 g bullet traveling at 440m/s strikes a 7.0kg , 1.2-m-wide door at the edge opposite the hinge. What is the angular velocity of the door just after impact
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