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A light spring with a force constant of 12 is connected to a wall and to a 1.9 toy bulldozer, as shown in the figure.(Figure 1) When the electric motor in the bulldozer is turned on, it stretches the spring for a distance of 0.45 before its tread begins to slip on the floor.
1) Which coefficient of friction (static or kinetic) can be determined from this information and why?
2) What is the numerical value of this coefficient of friction?
A 57.0-kg skier starts from rest at the top of a ski slope of height 67.0. how fast is she going after crossing the patch
A wire of resistance 9.0 is connected to a battery whose emf script e is 5.0 V and whose internal resistance is 1.0. How much energy appears in the wire as thermal energy in that time
A fisherman reels in 12 of line while landing a fish, using the constant forward pull of 35. How much work does the tension in the line do on fish.
What value of capacitance will ensure that an output voltage stays within 3 percent of the rated 22v . find an electric field between them and surface charge density on the plate.
A bullet is fired through a board 10.0 cm thick in such a way that the bullet's line of motion is perpendicular to the face of the board, Find the acceleration of the bullet as it passes through the board
During 5 successive 0.93 min intervals, a runner moves at the following constant speeds: 0.440 km/min, Compute the total distance traveled and the average speed
A more realistic car would cause the wheels to spin in a manner that would result in the ground pushing it forward with a constant force (in contrast to the constant power in Part A). If such a sports car went from zero to 30.0 in time 1.10 , how ..
A 5.00-liter aluminum cylinder at 5.00°C is filled to the brim with gasoline at the same temperature. If the aluminum and gasoline are warmed to 69.0°C, how much gasoline spills out
a solenoid is designed to store Ul = 0.10 J of energy when it carries a current I of 450 mA. How many turns of wire must the solenoid have
a child and a sled with a combined mass of 50 kg slide down a frictionless slope. what is the height of the hill
A 0.50-?F and a 1.4-?F capacitor (C1 and C2, respectively) are connected in series to a20-V battery, lculate the potential difference across each capacitor? V1 and V2
Two blocks are connected by a lightweight, flexible cord that passes over a frictionless pulley. If m1 is 3.7 kg and m2 is 9.0 kg, and block 2 is initially at rest 140 cm above the floor, how long does it take block 2 to reach the floor.
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