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An electron is accelerated from rest by a potential difference of 387 V. It then enters a uniform magnetic field of magnitude 161 mT with its velocity perpendicular to the field. Compute (a) the radius of its path in the magnetic field and (b) the speed of the electron.
Physicians perform needle biopsies to sample tissue from internal organs. A spring-loaded gun shoots a hollow needle into the tissue; extracting the needle brings out the tissue core. Find the impulse imparted by the tissue
A quarter-pound hamburger with all the fixings has a mass 220g . The food energy of the hamburger is 2.4MJ. What is the energy equivalent of the mass of the hamburger
A 43.5 mA current is carried by auniformly wound air-core solenoid with 460 turns, a 17.0 mmdiameter, and 11.0cm length. Compute the magnetic flux through each turn
An "extreme" pogo stick utilizes a spring whose uncompressed length is 48 and whose force constant is 1.1×104. Calculate her upward acceleration, in g's at that moment
An explorer in dense jungles of equatorial Africa leaves his hut. He takes 41 steps at an angle 45 north of east, then 81 steps at an angle 60 north of west, then 51 steps due south. Suppose his steps all have equal length. Save him from becoming ..
A microscope has an objective lens of focal length 6.75 mm. The objective forms an image 16.4 cm from the lens. How far from the objective should the object be placed
A baseball is hit straight up andis caught by the catcher 2.0 s later. What is the maximum height of the ball during this interval?
question1a knight sits on a castle wall during a siege. to while away time he notes that boulders catapulted from below
A ball is launched from a cannon at the ground level with speed v0=40 m/s at an angle 36.9 degrees above the horizontal. Find the horizontal range
A light ray is incident upon a plane interface between two materials. The ray makes an incident angle with the normal to the surface of 39 degrees in a material, find thev refracted angle (in degrees) in that material
Some species use echolocation to determine the position and velocity of objects and prey. What is the sound frequency of the echo the bat hears
An enclosed tank containing a liquid of density, p has a hole in its side at a distance y1 from the tank's bottom. find the horizontal distance from the hole
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