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A 1.00-kg object is observed to accelerate at 10.0 m/s2 in a direction 30.0 north of east. The force F2 acting on the object has a magnitude of 5.00 N and is directed north. Determine the magnitude and direction of the force F1 acting on the object.
two long parallel wires each carry a current of 5.0 a directed to the east. the two wires are separated by 8.0 cm. what
It is desired to project an image of an object four times actual size with a lens of focal length 20 cm. What object distance should be used
a spring without mass has natural length lo. one end is stuck to a fixed point and the other attached to a mass m. the
The calorimeter neither loses energy to nor gains energy from the external environment. What is the latent heat of fusion of the unknown material?
An airplane with a speed of 92.2 m/s is climbing upward at an angle of 37.7 ° with respect to the horizontal. determine the angle of the velocity vector of the package
If one sphere (density = .3 x 10^3 kg/m^3) is placed at the bottom of a tub filled with water, and another sphere (density = 8.1 x 10^3 kg/m^3) is placed 1.5 m directly above the first sphere. Determine the acceleration of each sphere
A cyclist approaches the bottom of a gradual hill at a speedof 20m/s. find the speed at which the cyclist crests the hill
What is the wavelength of the second laser that would place its second maximum at the same location as the fourth minimum of the first laser, if = 0.300 ?
a 1.6-kg block on a horizontal frictionless surface is attached to a spring whose force constant is 190 nm. the block
Highg power lasers in factories are used to cut through cloth and metal. One such laser has a beam diameter of 1.50 mm, Find the power delivered by the laser
A sprinter explodes out of the starting block with an acceleration of+2.14 m/s2 , which she sustains for 1.26 s.Then her acceleration drops to zero for the rest of the race. What is her velocity at t = 1.26 s and at the end of the race?
Consider a spiral galaxy that is moving directly away from Earth with a speed V = 3.600 106 m/s at its center, What frequency is detected by the astronomers observing the upper and lower arms
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