Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
An alpha particle has a charge of +3.2 x 10 ^ -19 C and a mass of 6.6 x 10 ^ -27 kg. The angle between v and B is 51 degrees. What is the radius of its circular orbit?
What is the rms current in an RL circuit when a 50.0HZ 240V rms ac voltage is applied, where R = 1.50 , and L= 520MH ? What is the phase angle between voltage and current? What are the rms voltage
An electric car accelerates for 12 s by drawing energy from its 400-V battery pack. During this time, 1200 C of charge pass through the battery pack. Find the minimum power rating of the car.
Two protons are moving directly toward one another. When they are very far apart, their initial speeds are 1.40 x 104 m/s. What is the distance of closest approach?
From a horizontal distance of 0.0540 m, a particle of mass 9.02 x 10-3 kg and charge -9.79 oC is fired with an initial speed of 84.2 m/s directly toward the fixed charge. How far does the particle t
The inner and outer surfaces of a cell membrane carry a negative and positive charge, respectively. Because of these charges, a potential difference of about 0.064 V exists across the membrane.
Two identical capacitors store different amounts of energy: capacitor A stores1.3x 10-3J, and capacitor B stores3.3x 10-4J. The voltage across the plates of capacitor B is 12 V. Find the voltage acr
A 74- kg ice hockey player standing on a frictionless sheet of ice throws a 6.6- kg bowling ball horizontally with a speed of 2.5 m/s. With what speed does the hockey player recoil?
A circular surface with a radius of 0.053 m is exposed to a uniform electric field of magnitude 1.59 × 104N/C.The electric flux through the surface is 79 N·m2/C. What is the angle between
An electric field is constant at every point on a square surface that is 0.80 m on a side. This field has a magnitude of 8.0 N/C and is oriented at an angle of 35° with respect to the surface, a
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed. The radius of the
A laser having an internal loss per round-trip of 0.015, when pumped at three times threshold, has an output power of 4W. The optical mode in the laser has diameter 1mm.Determine the saturation int
A laser having an internal loss per round-trip of 0.015, when pumped at three times threshold, has an output power of 4W. The optical mode in the laser has diameter 1mm. Determine the output mirror
What characteristic of a fluid would greatly increases the physical and mathematical complexity of fluid mechanics? describe some physical examples for this fluid properrty and what describe what e
Find the resistance that must be placed in series with a 10.0 galvanometer having a 125 µA sensitivity to allow it to be used as a voltmeter with a 500 V full-scale reading. (Answer to
A double convex thin glass lens has equal radii of curvature. The focal length of the lens is +37.3 cm and the index of refraction of the glass is 1.52. The radius of curvature of each convex surfac
Determine the maximum heights to which m = 1 and m = 2 rise on the curved portion of the track after the collision.
If it were to undergo gravitational collapse to a neutron star of radius 13 km, losing 3/4 of its mass in the process, what would its rotation speed be? Assume the star is a uniform sphere at all ti
What is the average vector force the ball exerts on the bat during their interaction?
A steep cliff west of Lydia's home reflects a 980-kHz radio signal from a station that is 68 km due east of her home. If there is destructive interference, what is the minimum distance of the cliff
The angular momentum of a spinning wheel is 235kg. After application of a constant braking torque for2.0s, it slows and has a new angular momentum of 120kg. What is the torque applied?
30-turn coil of wire of dimensions 8 cm by 5 cm. It carries a current of 0.140 A and is hinged along one long side. It is mounted in the xy plane, at an angle of 30° to the direction of a unifor
An electron moving at 3.70 x 103 m/s in a 1.45 T magnetic field experiences a magnetic force of 1.40 x 10-16 N. What angle does the velocity of the electron make with the magnetic field? There are two
Four standing wave segments, or loops, are observed on a string fixed at both ends as it vibrates at a frequency of 140hz. what is the fundemental frequency of the string?