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Question- If FA→ = 10 N, FC→ = 20 N, FD→ = 30 N, the width of the door is 1.1 m and θ = 30o (angle between FD and the direction of the length of the door), find the net torque produced at the door hinge?
A jet plane is flying at a constant altitude. At time t1=0 it has components of velocity vx= 88m/s, vy= 110m/s. Find the magnitude of the average acceleration
find the net rate of radiation by a pot at 35.7°C that has been placed in a -23.9°C freezer. The pot's surface area is 0.111 m2 and its emissivity is 0.655.
question the largest transformer ever built handles a power of 1.50x109 w. this transformer is used to step down 765
In a severe storm, 1.05 cm of rain falls on a flat horizontal roof in 31.0 min. obtain the average force exerted on the roof by the rain
A force of 21.0 N is required to start a 2.8 kg box moving across a horizontal concrete floor. What is the coefficient of static friction between the box and the floor
On a particular afternoon in Houston, the nitrogen (N2) molecules in the air have an rms speed of 515 m/s. What is the rms speed of the carbon dioxide (CO2) molecules
Assuming frictionless conditions, a table has a hanging mass, m1, over a pulley at the left side and another hanging mass, If m1 = .45kg, & m2 = .3kg, & m3 = .25kg what is the new accelration of the system
Louie Lemon rides on a Ferris wheel that takes 8.0 s to go once around; the radius of the wheel is 10.0 m. What is Louie's acceleration (magnitude and direction) when he reaches the lowest point of the ride
Looking straight downward into a rain puddle whose surface is covered with a thin film of gasoline, What is the minimum possible thickness of the gasoline layer directly beneath you
Two forces F1 and F2, act at a point. F1 has a magnitude of 9.20N and is directed at an angle of 61.0 degrees above the negative x axis in the second quadrant. What is the magnittude of the resultant force
A worker pushed a 22 kg block 8.1 m along a level floor at constant speed with a force directed 39° below the horizontal. find the increase in thermal energy of the block-floor system
A rock weighing 7150 N rock with avolume of 34 L is completely submerged inmercury. The density of mercury is 13.6 kg/L. Determine the density of the rock
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