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A 4.53-kg block rests on a 17° incline as shown in the figure. If the coefficient of static friction between the block and the incline is 0.41, what magnitude horizontal force F must act on the block for it to start moving up the incline? Express your answer in N.
A mild structural steel beam has a solid square cross section of 100mm and is simply supported by two supports 3m apart. Calculate the dead load that can be safely supported when applied to the middle beam.
question explain why the two lines on your graph should always cross at the frequency where xc r. find this frequency
A skier coasts down a very smooth, 10-m-high slope. If the speed of the skier on the top of the slope is 5.0 m/s, what is his speed at the bottom of the slope
A laser beam is incident at an angle of 42.0° to the vertical onto a solution of corn syrup in water. what is the index of refraction of the syrup solution
a 3.0w source of light produces monochromatic beam of wavelength 550 nm . this beam is incident on a metal surfae with
the rear window in a car is approximately a rectangle 1.3 m wide and 0.30 m high. the inside rear-view mirror is 0.68 m
question engineers have developed a bathyscaph that can reach ocean depths of 5.3 mi.nbsp if the density of seawater is
the image of a tree just covers the length of a plane mirror 3.60cmnbsptall when the mirror is held 38.0cmnbspfrom the
a 12-in record is dropped on a large 12-in phonograph turntable that is freely turning at 37 revmin. the mass of the
A long solenoid has n turns per unit length and is carrying a certain current i. An electron moves with speed v inside the solenoid in a circle of radius r perpendicular to the solenoid axis.
Two cars of the same mass collide at an intersection. Just before the collision one car is traveling east at 40.0 km/h and the other car is traveling south at 70.0 km/h. what is the speed of the cars immediately after the collision
In the figure, block 1 of mass m1 slides from rest along a frictionless ramp from height h = 2.1 m and then collides with stationary block 2, which has mass m2 = 5m1. After the collision, block 2 slides into a region where the coefficient of kinetic ..
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