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Two stationary positive point charges, charge 1 of magnitude 3.95nC and charge 2 of magnitude 1.65nC , are separated by a distance of 44.0cm. An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. What is the speed vfinal of the electron when it is 10.0cm from charge 1?
Moonlight is primarily reflected sunlight. If the moon reflects 15% of the photons that strike its surface, and we know that the intensity of sunlight at earth is I, what is the intensity of moonlight at the Earth during a full moon
A major league catcher catches a fastball moving at 80.0mi/h and his hand and glove recoil 10.0 cm in bringing the ball to rest. If it took 0.00500s to bring the ball (with a mass of 300g ) to rest in the glove,
An electron is acted on by an electric force of 5.1e-14 N. find the magnitude of the electric field at the electron's location
A proton is accelerated from rest by a potential difference of 335 V. The proton enters a uniform magnetic field and follows a circular path of radius 25 cm. Determine the magnitude of the magnetic field.
While riding her bicycle on a 140 meter track, a rider took 18 seconds on her first lap and 17 seconds on her second
A sled of mass 8 kg is on a frictionless slope inclined at 35degrees to the horizantal.It is pulled by a rope that makes anangle of 10 degrees with the slope,the tension in the rope is 40N. Find the accerelation of the sled take up the slope as thepo..
A flat piece of glass covers the top of a vertical cylinder that is completely filled with water, What is the smallest value of the incident angle theta_a for which none of the ray refracts into the water
How long does it take electrons to get from a car battery to the starting motor? Assume the current is 310 A and the electrons travel through a copper wire with cross-sectional area 0.49 cm2 and length 0.85 m. ?
What is the potential difference between two points that are 0.800 m and 3.75 m from a proton? What is the diameter of the 1.80 V eqipotential surface
An object 1,75 cm high is placed 36 cm in front of a concave mirror of focal length 12 cm. Calculate the image distance and image hight mathematically; state if the image is real or virtual and include a ray diagram in your answer.
A blu-ray disc has a mass of 20 g and is 12 cm in diameter. The fastest drives can spin the disc at 10000 RPM after uniformly accelerating it for 1 s. Find the net torque on the disc
At time t=0 a grinding wheel has an angular velocity of 22.0 rad/s. It has a constant angular acceleration of 32.0 rad/s^2 until a circuit breaker trips at time t = 2.00 s. At what time does the wheel stop
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