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At some instant the velocity components of an electron moving in the presence of a uniform electric field, E~ =(120 N/C) ˆx are vx = 3.0 × 103 m/s and vy = 1.5 × 105 m/s. In the space below, answer the following parts.
(a) Showing your work, determine the acceleration of the electron.
(b) Showing your work, determine the velocity vector of this electron after its y-coordinate has changed by 2.0 cm.
At t = 0, one toy car is set rolling on a straight track with initial position 13.5 cm, initial velocity -3.4 cm/s, and constant acceleration 2.70 cm/s2. What are their speeds at that time
a 17.0-g piece of styrofoam carries a net charge of -0.75 microc and is suspended in equilibrium above the center of a
a disk with a rotational inertia of 5.00 kg m2 and the radius of 0.25 m rotates on a frictionless fixed axis perpendicular to the disk, the maximum angular acceleration of the disk is
a helicopter moves in such a way that its position at any time is described by the horizontal and vertical equations x
Two capacitors are connected in series. Let 3.50 microfarads be the capacitance of first capacitor, 5.50 microfarads the capacitance of the second capacitor. Calculate the charge on each capacitor.
If the upper surface of an ice sheet 24.6 cm thick is at -10.9 oC and the bottom surface is at 0.00 oC, calculate the time it will take to add 1.80 mm to the thickness of this sheet.
The maximum tension that a 0.5m string can tolerate is 14N. A 2.5kg ball is attracted to the string being whirled in a vertical circle. What is the maximum speed the ball can have at the top of the circle.
A uniform rod rotates in a horizontal plane about a vertical axis through one end. The rod is 13.00 m long, weighs 21.67 N, Calculate the rotational inertia of the rod
Light at two different wavelengths, 750nm and 450nm, is shone through the same single slit at the same time. Determine the slit's width
A pendulum of the length L is suspended from the ceiling of an elevator. When the elevator is at rest, the period of the pendulum is T. In instant when the pendulum reaches it's highest position the elevator starts the free fall. What is the period o..
A) What is the Boiling Point (Temperature) of Water?
two coupled identicle pendula of mass 3 kg are oscillating having started at rest with positions x10 0.22m and x20
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