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Three charges, +2.6 \mu C, -4.9 \mu C, and-7.2 \mu C, are located at (-0.21 m,0.12 m), (0.52 m, -0.35 m), and (-0.46 m,-0.34 m) respectively.
What is the electric field at the origin?
Enter the x and ycomponents of the field separated by a comma.
Lithium, beryllium, and mercury have work functions of 2.30eV,3.90eV, and 4.50eV respectively. Find the maximum kinetic enery for the photoelectrons in each case
A temperature controller designed to work in an atmosphere containing steam a bimetallic strip of brass and steel built connected at their ends by rivets. Each metal has 2.0 mm thick. At 20 ° C, the strip is 10.0 cm long and is straight.
An incandescent lightbulb draws 0.50 A, while a compact fluorescent with the same light output draws 125 mA. How do their energy-consumption rates compare
When the cylinder is rotating at 2.0 revolutions per second, determine the magnitude of the centripetal acceleration at the outer wall?
A 2kg ball moving east with a speed of 3m/s collides with another 3kg ball moving west with a speed of 4m/s . After the collision the two balls stick together
Four 3.5 kg spheres are located at the corners of a square of side 0.60 m. Calculate the magnitude and direction of the gravitational force
Two cars collide at an intersection. Car , with a mass of 2000 , is going from west to east, while car , of mass 1300 , is going from north to south at 12.0. How fast was car going just before the collision
A jet pack is turned on for 10 seconds and performs 1500 joules of work to move an astronaut in space who was initially at rest. What the power of the jet pack in watts
A person pushes horizontally with a force of 210 N on a 53 kg crate to move it across a level floor. The coefficient of kinetic friction is 0.30. What is the magnitude of the frictional force
Evaluate (a) the acceleration of each object, (b) the tension in the string, and (c) the coefficient of kinetic friction between m2 and the incline.
A tennis ball on Mars, where the acceleration due to gravity is 0.379 of a g and air resistance is negligible, How fast was it moving just after being hit
A 15 kg box is being pushed across the floor at 1.7 m/s to the right. When the pushing force is removed, find the frictional force exerted on the box by the floor
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