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Your team of test engineers is to release the parking brake so an 848.0-kg car will roll down a very long 6.1 percent grade in preparation for a crash test at the bottom of the incline. (On a 6.1 percent grade the change in altitude is 6.1 percent of the horizontal distance traveled.) The total resistive force (air drag plus rolling friction) for this car has been previously established to be Fd = 100 N + (1.2 N · s2/m2)v2, where v is the speed of the car. What is the terminal speed for the car rolling down this grade?
Calculate the energy of each of the two photons produced from electron-positron pair annihilation when the electron and positron were nearly at rest
At what coordinate on the axis is the net electric field produced by particles equal to zero.
A typical lightbulb in your house is rated 200 W, which means that the bulb dissipates 200 W when connected to a DC voltage of 110 V. (a) What is the current through the lightbulb? (b) If the voltage is reduced to 55 V, what is the dissipated powe..
The large blade of a helicopter is rotating in a horizontal circle. The length of the blade is 6.64 m, Find the ratio of the centripetal acceleration at the end of the blade to that which exists at a point
Two point charges q = 97.0 nC and q = -97.0 nC are in vacuum located on the x axis at - 17.0 cm, calculate the total electric flux through the y-z plane
A submarine is 300. m horizontally out from the shore and 100m. beneath the surface of the water. How long does it take for the laser bream to reach the building
A motorist drives south at 22 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30 m/s for 1.00 min. For this 6.40 min trip, find out the following values.
A tennis ball of mass 0.0611 kg is served. It strikes the ground with a velocity of 55.6 m/s (124 mi/h) at an angle of 21.2° below the horizontal. what average force did the ground exert on the ball
A 85.6-kg wrecking ball hangs from a uniform heavy-duty chain having a mass of 27.0kg, Find the maximum tension in the chain
The nucleus in an iron atom has a radius of about 4.0 X 10-15 m and contains 26 protons, What is the magnitude of the gravitational force between those same two protons
define the magnitude of the torque on the dipole.
What is its velocity at impact? What will its average velocity be? What will its average speed be.
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