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Suppose a crate of mass 8.4 kg is placed on the plank in the figure below at a distance x = 8.3 m from the left end. If the plank has a mass of 12 kg, find the forces exerted by the two supports on the plank.
a base for a building column measures 18.0 in. by 18.0 in. on a side and 12 in. high. compute the cross-sectional area
Create the magnitude of the net gravitational force on moon
Consider an RC circuit with R = 3.10k? , C = 1.40?F . The rms applied voltage is 240V at 60.0Hz. compute the phase angle between voltage and current
A gardener pushes a box of tools across a driveway by applying a 22.5- N force that pushes downward at an angle of 23.1 o, How much work is done if the box moves 2.55 m in the horizontal direction
two masses m1=2.0kg and m2=3.5kg are connected by a thin string running over a massless pulley. what is the acceleration of the masses
A 0.30 kg mass is suspended on a string. In equilibrium the mass stretches the spring 2.0 cm downward. Calculate the total energy of the system
A 30 kg launching machine fires a 250 gram projectile horizontally at 100 m/s. What was the momentum of the machine
A nuclear power plant has an electrical power output of 1700 MW and operates with an efficiency of 34%. what is the rise in temperature of the flowing water
A car is traveling around a horizontal circular track with radius r = 150 m at a constant speed v = 28 m/s as shown, What is the magnitude of the car's acceleration, What is the x component of the car's acceleration when it is at point A
If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find out the final speed of the truck.
A gray kangaroo can bound across level ground with each jump carrying it 8.1m from the takeoff point. What is its maximum height above the ground
Find out the magnitude of the amount by which the potential difference across the plates changes.
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