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An irregularly shaped object 10 m long is placed with each end on ascale. If the scale on the right reads 74 N and the scale on the left reads 93 N, how far from the left is the center of gravity?
An ambulance with a siren emitting a whine at 1200 Hz overtakes and passes a cyclist pedaling a bike at 2.44 m/s, How fast is the ambulance moving
a point source of light illuminates an aperture 4.00 away. a 18.0 -wide bright patch of light appears on a screen 2.00
Let the drag force on a ball of mass m moving through air in the gravity-free bubble include both "viscous" drag F1=-kv, Find the velocity v of a ball thrown with initial speed v0.
A helium-neon laser (?=633 nm) illuminates a diffraction grating. What is the spacing between slits of the grating
station kaim in hawaii broadcasts on the am dial at 870 khz with a maximum power of 50000 w. at maximum power how many
An airplane has a mass of 3 * 104 kg and takes off under theinfluence of a constant net force of 35 000 N. What is the netforce that acts on the plane’s 80 kg pilot, assuming that hehas the same acceleration as the plane?
A space craft with a mass equal to .25*(mass of moon) is in orbit about the sun with a period of 3 years. calculate the average radius of the space craft's orbit. (the distance from the space craft to the sun).
A 1.25 m long FM antenna is oriented parallel to the electric field of an EM wave. The eletric field produced from 1.46 mV between the ends of the antenna must be 9.12×10^-4 V/m. What is the rate of energy transport per square meter?
An ideal spring is lying horizontally on a frictionless surface, find the oscillation frequency of a 2.5 kg blcok under the same circumstances
A person weighs 670N steps onto a spring scale in the bathroom, and the spring compresses by 0.79 cm. What is the spring constant? And what is the weight of another person who compresses the spring by 0.34 cm.
A long, straight wire carrying a current of 4.00 A is placedalong the axis of a cylinder of radius 0.500 m and a length of 2.00m. Determine the total magnetic flux through the cylinder
A sound wave from a police siren has an intensity of 103.1 W/m2 at a certain point; find the intensity level of the sound wave due to the ambulance?
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