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Determine the magnetic flux density at the center of a solenoid of length 20 cm and diameter 50 cm if it is uniformly wound with 1200 turns of wire carrying a current of 3A?
a basketball player makes a jump shot. the 0.615 kg ball is released at a height of 1.82 m above the floor with a speed
Two lightweight rods 24 {rm cm} in length are mounted perpendicular to an axle and at 180 ^circ to each other. At the end of each rod is a 480 {rm g} mass. The rods are spaced 42 {rm cm} apart along an axle. The axle rotates at 4.90 rad/s.
A sphere of radius 4.12 cm and uniform surface charge density+11.6μC/m2 exerts an electrostatic force ofmagnitude 4.83×10−2N on a point charge+1.25μC. Find the separation between the point chargeand the center of the sphere.
An asteroid with a rest mass of 8.2 1011 kg is observed to have a relativistic momentum of magnitude 4.54 1020 kg · m/s
Green light (? = 546 nm) strikes a single slit at normal incidence. What width slit will produce a central maximum that is 1.70 cm wide on a screen 1.18 m from the slit
An object is launched at 30 with initial speed of v = 30m/s. a) When does it reach the highest point of the projectile? b) What is the range of the flight? c) What the maximum height it reaches? 30. An object is moving with constant speed of v = 3..
Derive an expression for the surface temperature of the sun, in terms only of its solid angle, its flux per unit wavelength f (lambda) at earth at wavelength lambda, and fundamental constants.
The drum on a washing machine starts from rest and accelerates with an angular acceleration of α = 1.2 rad/s2 as it goes into its final spin cycle. Through what angle does it rotate during this acceleration
The instantaneous potential difference Vab across an electric light bulb has a maximum value of 170 Volt and a minimum value of -170 V. Evaluate what is the rms voltage
A railroad freight car of mass3.24multiplied by104kg collides with a stationary caboose car. Find the mass of the caboose
A mass of 50 kg is suspended from a steel wire of diameter 1.0 mmand length 11.2 m. How much will the wire stretch
A 40kg child standing on a frozen pond throws a 0.5kg stone to theeast with a speed of 5m/s. what is the recoil velocity of the child
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