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A proton moving at 7.6 × 106 m/s through a magnetic ?eld of 8.8 T experiences a magnetic force of magnitude 2.5 × 10?12 N. What is the angle between the proton's velocity and the field? The charge on a proton is 1.60218 × 10?19 C and its mass is 1.67262 × 10?27 kg.
A cockroach of mass m lies on the rim of a uniform disk of mass 7.00 m that can rotate freely about its center like the merry-go-round. At first the cockroach and disk rotate together with an angular velocity of 0.220 rad/s. Then the cockroach walks ..
A 25g ball is fired with an initial speed v1 toward a 150g ball that is hanging motionless from a 1.30m string. The balls have a perfectly elastic collision. As a result, 150 g ball swings out until the string makes an angle of 37° with vertical. ..
A proton and an electron are held apart a distance of one meter, Calculate the electric force F between them and Show the electric force vector on each of them
The howler monkey is the loudest land animal and, under some circumstances, can be heard up to a distance of 8.9 km, What is the ratio of the acoustic intensity produced by the juvenile howler to the reference intensity
A 500- kg ice boat moves on runners on essentially frictionless ice. A steady wind blows, What was the force due to the wind
Calculate the direction of the average force on the ball during the contact . The magnitude of the average force is 4700N
On a workday the average decibel level of a busy street is 80 dB, with 100 cars passing a given point every minute. If the number of cars is reduced to 45 every minute on a weekend, what is the decibel level of the street.
You are piloting a small plane that can maintain an air speed of 136.5 kt (knots, or nautical miles per hour) and you want to fly due north (azimuth = 000°) relative to the ground.
A river flows due east at 1.50 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 15 m/s due north relative to water.
A block of mass 0.540 kg is pushed against the horizontal spring of negligible mass until the spring is compressed a distance x. The force constant of the spring is 450 N/m.
What voltage must be applied to the 5.00 µF capacitor of a heart defibrillator to store 600 J in it, Find the amount of stored charge
What minimum constant acceleration the aircraft requires.
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