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An electron travelling parallel to the ground and due nort enters a region of space in whch there is uniform magnetic field of 0.5 uT pointing straight up. The electron is travelling at a speed of 1,000 km/s.
What is the magnitude of the magnetic force on the electron (In N), and which direction is the magnetic force on the electron as it enters the region in which there is a magnetic field?
A two-stage rocket moves in space at a constant velocity of 4900 m/s. What is the velocity of the 2400 kg lower stage after the explosion
Karyn is running in the Boston Marathon with an average speed of 3.35 m/s. The density of the air is 1.2 kg/m3 , Karyn’s cross-sectional area is 0.50 m2 , and the coefficient of drag is 1.1. As Karyn approaches Heartbreak Hill, the head wind picks up..
Both of these particles started at the same point and traveled a half circle. Wouldn't the distance between them be equal to the difference between the two radii? Why is the distance multiplied bytwo in the last step??
A 663 kg elevator starts from rest it moves upward 2.7s with aconstant acceleration until it reaches its cruising speed of 1.63m/s, What is the power during an upward cruise with constant speed
Two point charges are on the y-axis. A 5.0 µC charge is located at y = 1.45 cm, and a -2.26 µC charge is located at y = -1.70 cm. Find the total electric potential at the origin
the dielectric strength, n, of a material is the largest electric filed it can be subjected to without breaking down, or in other words, What is the capacitance of this capacitor
A device has a resistance of 240 ohms for a potential difference of 120 volts. What is the current
A) 650nm light is incident on a diffraction grating of 1200 lines per cm. If the wall is 5m away from the diffraction grating, how far apart is each maximum?
How much work is done by a person lifting a 2.0-kg object from the bottom of a well at a constant speed of 2.0 m/s for 5.0 s
The generator at a power plant produces AC at 27,000 V. A transformer steps this up to 355,000 V for transmission over power lines. how many turns must there be in the output coil
A spherical particle is released 15 ft below water level. The specific gravity of the particle is 0.95 and its diameter is 0.1 in. Assuming steady state: Calculate the terminal velocity of the particle
If the PEL, PERSONAL EXPOSURE LIMIT for a substance is 500 ppm., the SAE is 0.10 for the sampling method, what is the lower confidence limit test results
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