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A 1.1 kg particle-like object moves in a plane with velocity components vx = 20 m/s and vy = 50 m/s as it passes through the point with (x, y) coordinates of (3.0, -4.0) m.
(a) What is its angular momentum relative to the origin at this moment?
kg · m2/s k hat
(b) What is its angular momentum relative to the point (-2.0, -2.0) m at this same moment?
A point charge q1=+2.40?C is held stationary at the origin. A second point charge q2=-4.30? C moves from the point x= 0.150 m , y= 0m
A particle is launched in a gravitational field (g) with an initial velocity of v nought at an angle of theta with respect to the horizontal, Write down the equations for displacements along x- and along the y- axis as a function of time (t)
A student presses a book between his hands, as the drawing indicates. The forces that he exerts on the front and back covers of the book are vertical to the book and are horizontal.
Vi = 10-3 m3 chamber of a gas bottle contains some argon gas (atomic weight = 0.040 kg/mole) at a pressure of 104 Pa and a temperature of 22° C. Illustrate what is the number density of atoms in this chamber?
A parallel plate capacitor is made of two parallel disks of metal separaded by a gap. The radius of the disk is 2.0m, the distance between the plates .25m. What is the energy stored in the capacitor
An electron is projected vertically upward with a speed of 1.65x10^6 m/s into a uniform magnetic field of 0.160 T that is directed horizontally away from the observer. What would the radius of the circle be.
a motor starts from rest with an angular acceleration of 12. rad/s ^2 what is the motor angular speed 4.0s later? how many revolutions does it make in this period of time
In the typical X-ray lamp. The electrons are accelearated in the potential difference of 10000V before hitting the water cooled electrode. Find the shortest wavelength of X-rays produced in this lamp.
Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest
Starting from rest, a 4.10-kg block slides 2.6 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is ?k = 0.436, Determine the work done by normal force
A bungee jumper undergoes simple harmonic motion with amplitude 4.6m and frequency 0.145Hz, Determine the bungee jumper's velocity at 1.0 s
A cooling fan is turned off when it is running at 880rev/min . It turns 1000 revolutions before it comes to a stop. What was the fan's angular acceleration, assumed constant
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