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a car weighing 500 Lbs with the velocity of 60 miles per houris trying to negotiate a sharp turn on a flat curvy road.Coefficient of static friction between the car's tires and the roadis 0.4
a) Draw free body diagram of the car showing all externallyapplied forces on it.
b) If a sharp turn in the road is approximated as a circularpath, will the car able to stay on the road?
c) If the car cannot negotiate the curve and goes off theroad, explain in which direction the car will go.
A skier leaves the end of a horizontal ski jump at 22. m/s and falls 3.20 m before landing. how far horizontally does the skier travel in the air before landing
The rotational inertia of a collapsing spinning star changes to 1/4 its initial value. What is the ratio of the new rotational kinetic energy to the initial rotational kinetic energy.
Conservation of energy tells us that energy cannot be created or destroyed. Clearly energy is required for radioactivity to occur. a. Where exactly is this energy coming from? b. How could the age of this fragment be determined?
q1. the lines in a grating are uniformly spaced at 1520nm. analyse the angular separation of the second order bright
q. a certain toaster has a heating element made of nichrome resistance wire. when the toaster is first connected to a
An audio amplifier provides an alternating rms potential difference of 15.0V. A loudspeaker connected to the amplifier has a resistance of 10.4 ohm. what is the rms current in the speaker
A 31.0 kg child runs with a speed of 3.00 m/s tangential to the rim of a stationary merry-go-round. Calculate the initial kinetic energy of the system
The intensity of a lightbulb with a resistance of 160 ohms is controlled by connecting it in series with an inductor whose inductance can be varied from L = 0 to L sub max. What is the average power dissipated in the lightbulb when L = 0
What is capacitance a measure of, physically? Describe a typical RC circuit. Explain how voltage measured across a capacitor changes in time, both when the capacitor is charging and discharging.
Electrons are emitted when a metal is illuminated by light with a wavelength less than 381nm but for no greater wavelength. What is the metal's work function?
An athlete crosses a 29 m wide river by swimming perpendicular to the water current at a speed of 0.6 m/s relative to the water. How fast is the water flowing relative to the ground
What is the average magnitude of the Poynting vector 8.50 mi from a radio transmitter broadcasting is otropically (equally in all directions) with an average power of 260 kW?
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