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1. A car is rounding a curve with a radius of 12.0 m at 8.2m/s when it hits a slippery patch. What is the minimum coefficientof static friction between the car and the slick patch of road that will allow the car to round the corner safely?
2. A target is lying flat on the ground 45 meters from thebottom of an 18 meter cliff. A boy is standing at the top of thecliff with a bow and arrow. If the boy fires the arrow parrallel tothe ground from the top of the cliff, how fast should it be goingso that it hits the target?
3. A 20 kg concrete block is supported by two cables. Thecables make angles of 60 degrees with the ceiling. Find thetensions in the cables.
4. A girl is sledding in the winter; the total mass of thesled and girl is 55kd. The coefficient of kinetic friction betweenthe sled and the snow is 0.14. She chooses a run where the inclineis 24 degrees. What is her acceleration?
5. A man is dragging a trunk in a busy airport at a contantvelocity. He applies a force at an angle of 40 degrees above thehorizontal. The trunk weighs 240 N. If the coefficient of frictionis 0.35, with what force is he pulling the trunk?
In an oscillating LC circuit in which C = 4.15 µF, the maximum potential difference across the capacitor during the oscillations is 1.77 V, What is the frequency of the oscillations
question1a 8kg mass moves in a circular path of 4m radius on a frictionless horizontal table. it is attached to a
A heating element in a stove is designed to dissipate 3380 W of heat when it is connected to 200 V. Assuming that the resistance is constant, Calculate the power the heating element dissipates
A plastic rod that has been charged to 19touches a metal sphere. Afterward, the rod's charge is 3.0. How many charged particles were transferred
A pendulum is constructed by attaching a small metal ball to one end of a 1.25 m long string that hangs from the ceiling. the ball is released when it is raised high enough for the string to make an angle of 30.0 degrees with the vertical. how fast i..
A standard 35mm slide measures 24mm by 36mm. Suppose aslide projector produces a 60cm by 90cm image of the slide on ascreen. The focal length of the lens is 12cm. What is the distance between the slide and the screen
An object located 32.1 cm in front of a lens forms an image on a screen 9.5 cm behind the lens. determine the magnification of the object
Three resistors, R1 = 30? , R2 = 71? , and R3=R, are connected in parallel with a 12Vbattery, Find the value of resistance R and currenrt through each resistor
A current of 13.9 A flows through an electric heater operating on 120 V. What is the heater's resistance
How numerous revolutionsthe wheel have made through the time
A skier slides horizontally along the snow for a distance of 25 m before coming to rest. how fast was the skier going
When he accelerates from a stoplight, the tassel deflects backward toward the rear of the car hanging at an angle of 6.30° relative to the vertical. Find the tension in the string holding the tassel
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