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It takes a force of 65.5N to compress the spring of a toy popgun 0.200m to "load" a 0.190kg ball.
Part A With what speed will the ball leave the gun?
A very long, thin rod carries electric charge with the linear density 28.0 nC/m. It lies along the x axis and moves in the x direction at a speed of 15.0 Mm/s. Find the electric field the rod creates at the point.
A hand-driven tire pump has a 2.50 cm diameter piston and a maximum stroke of 24.0 cm. What average force do you exert on the piston
On her return trip, she drives half the time at 43.0 and half the time at 74.0. What is Julie's average speed on the way to Grandmother's house. What is her average speed on the return trip
Find the energy (in joules) of the photon that is emitted when the electron in a hydrogen atom undergoes a transition from the n = 5
you need to use a monitor and lightweight cable to lift a 2.0 kg copper weight to a height of 3m. To do so, you've decided to use a 1000V power supply to charge a capacitor, what minimum capacitance do you need
A piano wire with mass 3.45 g and length 77.0 cm is stretched with a tension of 33.0 N . A wave with frequency 100 Hz and amplitude 1.70 mm travels along the wire. Calculate the average power carried by the wave. What happens to the average power if ..
A boy pulls his brother on a sled horizontally across all snow-covered field. The coefficient of friction between the snow and the sled is 0.24. what power is being expended by the boy
A dart with a mass of 0.025 kg traveling with a speed of 13 m/s impacts a dart board and stops. What work was done by the dart board in stopping the dart
What voltage must be applied to the 5.00 µF capacitor of a heart defibrillator to store 550 J in it? Find the amount of stored charge
When red light in a vacuum is incident at the Brewster angle on a certain type of glass, the angle of refraction is 39.0°. What is the index of refraction of the glass
Blood from an animal is placed in a bottle 2.0m above a 3.5cm long needle, of inside diameter 0.40mm , What is the viscosity of this blood
A fox fleeing from a hunter encounters a 0.795 m tall fence and attempts to jump it. By how much does the fox clear the fence
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