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A 2.00 meter long horizontal plank whose mass is 3.00 kg is placed so that the very end (the right end) rests on a retaining wall. The left end is put on the tailgate of the truck. However the tailgate is tilted a bit, so it only contacts the board at a point 25 cm from the end. Find the force acting on the board by the tailgate. Find the force acting on the board by the retaining wall.
The front and rear sprockets on a bicycle have radii of 8.67 and 5.55cm, respectively. Calculate the linear speed (in cm/s) of the chain as it moves between the sprockets
A typical ten-pound car wheel has a moment of inertia of about 0.35 kg(m^2). What is the rotational kinetic energy of the rotating wheel
What is the radiation pressure (force/area) of a laser pointer on a heavy, highly absorbing surface? Assume that the laser has an output power of 1mW, a wavelength of 600nm, and a beam radi- us of 1mm. To do this problem, first compute the number ..
A small disk (not sphere) of radius a and charge +Q is concentric with larger disk, connected to a thin ring of radius b and charge -Q. What is the total capacitance
A wheel has a rotational moment of inertia I=150. It is accelerated by a constant torque from rest to a final angular velocity of 1.0. what is the value of the torque applied
A simple pendulum consists of a bob of mass 1.8kg attached to a string of length of 2.5m. The pendulum is held at an angle of 30 degrees from the vertical by the light horizontal string attached to a wall.
The inlet ducting to a jet engine forms a diffuser that steadily decelerates the entering air to zero velocity relative to the engine before the air enters the compressor. determine the temperature, in degrees Celsius, of the air entering the compr..
A particle of mass m1 = 3.74kg is traveling in the positive x-direction with a velocity of 17.5m/s. What is the angle that the new trajectory makes with the x-axis
The drawing shows six point charges arranged in a rectangle. The value of q is 9.0 uC, and the distance d is 0.13 m. Find the total electric potential at location P
Find the change in volume of an aluminum sphere of 5.2 cm radius when it is heated from 18.0 °C to 296.0 °C. The linear coefficient of thermal expansion of aluminum is 2.300×10-5 /°C.
An inductor has an inductance of 0.082 H. The voltage across this inductor is 45 V, What is the current in the inductor
A 5.00 x 10^4 kg space probe is travelling at a speed of 14000 m/s through deep space. Retrorockets are fired along the line of motion to decrease the probe's speed. The retrorockets generate a force of 4.00 x 10^5 N over a distance of 2600 km. What ..
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