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A 35 kg uniform ladder is leaned against a building. The 5 m tall ladder makes an angle of 60 degrees with the ground. The ladder encounters a coefficient of static friction from the ground of 0.3 and a coefficient of static friction with the wall of 0.42. A painter must climb two-thirds of the ladder to reach a blank spot on the wall. What is the maximum mass that the painter can have before the ladder begins to slip?
Calculate the time it will take this block when released from rest to travel a distance of 0.3 m along the ramp
A heart defibrillator passes 11.5 A through a patient's torso for 5.00 ms in an attempt to restore normal beating. How much charge passed
what is the direction of its velocity relative to the frame of reference.
The displacement of a standing wave on a string is given by D = 9.9 sin(0.55x)cos(56t), where x and D are in centimeters and t is in seconds. What is the distance (cm) between nodes
A 2 kg mass passes through the origin (x=0) with initial velocity -3m/s to the left on a horizontal frictionless table, Find the values of x which the mass has zero acceleration
A flight attendant pulls her 63N flight bag a distance of 308m along a level airport floor at a constant velocity. The force she exerts is 45N at an angle of 57° above horizontal. Find the work she does on flight bag.
A beam of light is traveling in air and strikes a material. The angles of incidence and refraction are 51.8° and 43.2°, respectively
A light source moves toward a receiver with speed v. If the source emits light with a frequency f0, what is the frequency of the received signal for a source of 220nm
A farsighted person has a near point of 50-cm from her eyes. She wants glasses that would let her see objects at a distance of only 25.00 cm from her eyes. Determine out the focal length of the glasses needed if the glasses are 2 cm and 3 cm from ..
A lava bomb is a missile composed of cooling, practicallysolid lava. You are a geologist, watching a volcano launch a lava bomb straight upward. find the Initial Speed at which the lava bomb got launched
A 26-mH inductor, an 7.9-? resistor, and a 6.2-V battery are connected in series.The switch is closed at t = 0. Find the voltage drop across the inductor at t = 0. V
A 0.70 kg ball is moving horizontally with a speed of 9.7 m/s when it strikes a vertical wall. What is the magnitude of the change in linear momentum of the ball
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