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A uniform board with a length of 1.2 m and mass 5 kg is placed on two scales as show below A weight W with mass 20kg is placed on the board 20 cm from it center. Each balance is located 10cm from the end of the beam. What are the readings (in Newtons or in kg) on the left and right balance?
A long pipe of outer radius 3.60 cm and inner radius 3.06 cm carries a uniform charge density of 3.22 mC/m3. calculate the electric field r = 7.56 cm from the centerline of the pipe
A block is placed on a frictionless ramp at a height of 11.5 m above the ground. Starting from rest the block slides down the ramp. What is the speed of the block when it is 6.25 m, vertically, above the ground
A uniform 1200N beam that is 3.50 m long is suspended horizontally by two vertical wires at its ends. A small but dense 550 N weight is placed on the beam 2.00m from one end.
An electron is accelerated from rest by a potential difference of 440 V. Calculate the radius of its path in the magnetic field
An engineer is designing the runway for an airport. Of the planes that will use the airport, the lowest acceleration rate is likely to be 3 m/s2. The takeoff speed for this plane will be 65 m/s. Assuming this minimum acceleration, what is the minimum..
after leaving the end of a ski ramp a ski jumper lands downhill at a point that is displaced 60.4 m horizontally from
A construction worker is standing in a 2.6 meter deep hole, 3.1 meter from the side of the hole. Determine how far from the edge of the hole does it land
7.0 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 3.1 m/s2, find the force exerted by the rope on the bucket
A roller coaster reaches the top of the steepest hill with a speed of 6.0 km/h. Estimate its speed when it reaches the bottom
The tallest spot on Earth is Mt. Everest, which is 8857 m above sea level. If the radius of the Earth to sea level is 6369 km, how much does the magnitude of g change between sea level and the top of Mt. Everest
A 0.07 kg bullet traveling at 569 m/s hits a 5.9 kg block of wood and stays in the wood. What is the velocity (speed)of the wood block
A parallel-plate capacitor with plates of area 2.15 x 10-4m2 is being designed to have a capacitance of 1330 pF. What plate separation is required if the spacebetween the plates is filled with air
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