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The electrons then pass through a 0.31 T magnetic field that deflects them to the appropriate spot on the screen. Find the magnitude of the maximum magnetic force that an electron can experience.
The masses of the three blocks are m1 = 39 kg, m2 = 39 kg, and m3 = 21 kg. The pulling force is equal to T3 = 50 N. What is the acceleration of the system?
Two point charges of + 20.0 oC and - 8.00 oC are separated by a distance of 20.0 cm. What is the intensity of electric field E midway between these two charges?
A uniform electric field of magnitude 410 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.60 cm. What is the change in potential en
Suppose a tool having a normal earth weight of 128 N was hanging by a very light wire from the ceiling of the shuttle. Find the tension in the wire.
This region is 1.7 cm in length, and the electrons enter with a speed of 1 × 10^5 m/s and leave with a speed of 2.5 × 10 ^6 m/s. How long is the electron in the accelerating region? Answ
A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field between the plates? (b) What is the magnitude of the force on an electron between the plate
The potential difference between the accelerating plates of a TV set is about 25 kV. If the distance between the plates is 1.4 cm, find the magnitude of the uniform electric field in the region bet
A uniform electric field of magnitude 355 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.30 cm. (a) What is the work done by the f
A soccer player kicks a ball, giving it an initial velocity of 17.2 m/s in the horizontal direction and 12.0 m/s in the vertical direction. How far down the field does the ball travel before landing
A small object of mass 3.46 g and charge -18.4 oC is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. What are the magnitude and directio
A double-slit interference experiment is performed using blue light from a hydrogen discharge tube ( = 486 nm). The fifth-order bright fringe in the interference pattern is 0.660 from the central
What is the electric potential due to the two shells at the following distance from their common center: 8.00 cm
Two parallel plates are held at potentials of +189.0 V and -98.0 V. The plates are separated by 1.19 cm. a) Find the magnitude of the electric field between the plates. b) An electron is initially p
Three charges, q1, q2, and q3, are located at the corners of an equilateral triangle with side length of 1.11 m. Find the work done in each of the following cases:
A boat moves through the water with two forces acting on it. One is a 1,700-N forward push by the water on the propeller, and the other is an 1,300-N resistive force due to the water around the bow.
For 140 keV gamma rays, the mass attenuation coefficients for hydrogen and oxygen are 0.26 and 0.14 cm^2/g, respectively. What is the mean free path in water at this energy?
An alien spaceship traveling at a constant velocity of 1/3 in the +X direction passes the earth (call this event A) at time t=0.
Two violinists are playing two different tones. The first violinist plays a tone that has a frequency of 100 Hz. You hear beats separated by 2 seconds. Which of the following could be the frequency
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 v_final of the electron when it is 10.0cm fro
A rocket of mass m is fired vertically upward from rest. The rocket's engine produces a thrust of constant magnitude Fthrust for Tthrust seconds. Determine the maximum height reached by the rocket
A diver running 2.3m/s drives out horizontally from the edge of a vertical cliff and 3.1{\rm s} later reaches the water below. How high was the cliff? How far from its base did the diver hit the wa
A student adds two perpendicular displacement vectors of magnitude 12.0 cm and 8.0 cm. Which of the following is the only choice for the magnitude of the resultant displacement of these two vectors?
The objective lens of an astronomical telescope has a focal length of 60 cm and the eyepiece has a focal length of 2 cm. How far apart should the lenses be placed in order to form a final image at
Visible light of wavelength 480 nm is incident on a diffraction grating with a slit spacing of 0.003 nm. How many bright fringes are seen on the wall behind the grating?