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A 1.05 g samara (the winged fruit of a maple tree), falls toward the ground with a constant speed of 1.1 m/s.
a) what is the force of the air resistance exerted on the samara?
b) if the constant speed of the descent os greater than 1.1m/s,is the force of the air resistance greater than, less than or thesame as in part A? Explain.
how long would it take a car to return to its starting place if it traveled 180 ms average speed of 90 kmhr and
The angle between the electric field vector and the vector normal to the rectangular plane is 65.0 degrees. Illustrate what is the electric flux through the rectangle?
The tub of a washer goes into its spin cycle, starting from rest and gaining angular speed steadily for 9.00 s, how many revolutions does the tub turn while it is in motion
1)A crate of potatoes of mass 19.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.82 and μk = 0.29. Find the frictional force (magnitude and direction) on the crate if the crate is sliding d..
A 2.80 102 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 22.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 7.00 m. (a) Find the work..
A large, thin plastic disk wth diameter D=3.0 meters carries a uniformlydistributed charge of Q= -3.0 x 10^-5 C, Calculate the magnitude q of the charge on the left circular face of the foil
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a 0.065 t magnetic field passes through a circular ring of radius of 4 cm at an angle of 25 dregrees with the normal. what is the magnitude of the magnetic flux through the ring
A large flat plate with uniform charge density ? lies on the xy plane. What is the potential difference between the points (0, 0, a) and (a, a, 2a)
Compute the scalar product V.F
Light of wavelength 5.30 102 nm passes through a slit of width 0.210 mm. Determine the width of the first-order bright fringe
An 79-kg stuntman jumps from a window of a building situated 33 m above a catching net. Assuming that air resistance exerts a 100-N force on the stuntman as he falls, identify his velocity just before he hits the net.
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