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Three forces are applied to a wheel of radius 0.290 m, as shown in the figure below. One force (F1 = 12.0 N) is perpendicular to the rim, one (F2 = 9.05 N) is tangent to it, and the other one (F3 = 13.3 N) makes a 40.0° angle with the radius. What is the net torque on the wheel due to these three forces for an axis perpendicular to the wheel and passing through its center? (Let counterclockwise torques be positive.)
At the Earth's surface a projectile is launched straight up at a speed of 8.5 km/s. To what height will it rise
A3.50kg object is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of24.0N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position.
A parallel-plate air-filled capacitor having area 44.0 cm2 and plate spacing 2.80 mm is charged to a potential difference of 620. V.
Light has a wavelength of 600nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the WAVELENGTH of the light in the glass
a student builds and calibrates an accelerometer, which she uses to determine the speed of her car around a certain unbanked highway curve. what is the radius of the curve
A mass of 1.0 kg is pushed against a spring with a spring constant of 25 N/m. What is the amount of potential energy acquired by the spring when it is compressed
A pair of eyeglasses has an index of refraction nglass = 1.52. It is covered with an antireflection layer that has a thickness of 120 nm, what is its index of refraction
A loop antenna of area 2.00 cm2 and resistance 5.21 ?? is perpendicular to a uniform magnetic field of magnitude 17.0 ?T. How much thermal energy is produced in the loop by the change in field
8 equal drops of water are falling through air with a steady velocity of 10 cm/s. then the terminal velocity of the big drop is
A runner accelerates to a velocity of 5.36 m/s due west in 3 s. His average acceleration is 0.64 m/s2, also directed due west. What was his velocity when he began accelerating
One resistor dissipates 12 W of power when connected across a battery. how much total power will they dissipate
When the space between two parallel plates is devoid of matter, the capacitance is .47 micro farrads. The dielectric constant is
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