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A parallel-plate capacitor has plates with an area of 500 cm2 separated by 1.7 mm. What is the electric field among the plates when they are charged with 2.500×10-6 C?
In the fusion of a deuterium nucleus (one proton, and one neutron) with a tritium nucleus (one proton, two netrons), the deuterium nucleus must have enough initial kinetic energy to overcome the repulsion force due to the electrostatic interaction..
A liquid p =1.65 cm3 is flows through two horizontal sections. In the first section the cross sectional area is 10 cm2 and the flow speed is 250 m/s and the pressure is 1.20 x 105 pa. Determine the smaller sections flow speed
a disoriented physics professor drives 3.33 north then 4.69 west and then 1.61 south.1-use components to find the
Air at 80 kPa, 27 degrees C and 220 m/s eneters a diffuser at a rate of 2.5 kg/s and leaves at 42 degrees C. the exit area of the diffuser is 400 cm2. the air is estimated to lose heat at a rate of 18 kJ/s during this process.
What is the frequency of blue light that has a wavelength of 450 nm and What is the frequency of red light that has a wavelength of 650 nm
A 25.0 kg child on a 2.00 m long swing is released from restwhen the ropes of the swing make an angle of 30 degrees with the vertical. Neglecting friction, find the child's speed at the lowest position
A 1.0 kg hollow ball with a radius of 0.08 m, filled with air, isreleased from rest at the bottom of a 2.2 m deep pool of water. How high above the water does the ball shoot upward
a very thin circular disk of radius r 13.00 cm has charge q 20.00 mc uniformly distributed on its surface. the disk
If the weight of a room full of water is so great, why don't the first floors of houses built over basements all collapse as flooded to the ceiling.
A spring with constant k=30N/m is used to shoot a block (mass 1kg) across a frictional horizontal surface. what is the force of friction acting on the block
A swimming pool is 50 m long by 23 m wide and is less deep at one end than at the other. The depth at the shallow end is 1.18 m, and the depth at the deep end is 3.95 m. The slope is continuous (smooth) from one end to the other. What is the differen..
A proton is fired from far away toward the nucleus of a mercury atom. Mercury is element number 80, and the diameter of the nucleus is 14.0, what is its closest approach to the surface of the nucleus
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