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A 1 kg block attached to a spring with force constant 25 N/m oscillates on a horizontal, frictionless air track. At t = 0, the block is released from rest at x = ?3 cm. (At that time the spring is compressed by 3 cm). Find (a) the period of its motion, (b) the maximum values of its speed and acceleration, and (c) the position, velocity and acceleration as functions of time.
A 5.00 uF and a 7.00 uF capacitor are connected in series, and this combination is connected across a 48.0V potential difference. Calculate the potential difference across first one
The body contains many small currents caused by the motion of ions in the organs and cells. how large is the current in the heart
The focal length of a bi-convex lens is 10 cm. The focal length of a convex-concave thin lens is -20 cm. If placing them in parallel and in close contact, what is the compound focal length
person leaning over a 124 m deep well accidentally drops a siren emitting sound of frequency 2430 hz. What beat frequency does this person perceive
The coefficient of static friction between the ladder and the ground is 0.55, and the ladder makes a 50.0° angle with the ground. Explain how far up the ladder can an 870 N person climb before the ladder begins to slip?
A copper block rests 25.5cm from the center of a steel turntable. The coefficient of static friction between block and surface is 0.52. The turntable starts from rest and rotates with a constant angular acceleration of 0.475 rad/s2. After what tim..
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 force vector points at an angle of 64.9 ° above the +x axis. It has a y component of +276 Newton's (N). Find out (a) magnitude and (b) x component of the force vector.
You brake your Porsche with constant acceleration from a velocity of 23.6 m/s to 12.5 m/s over a distance of 105 m. How much time elapsed during this interval
Suppose V rms = 240 V for an alternating current power source. What is the amplitude of the voltage for the source
A cube with side length 1.53m of solid Styrofoam is completely submerged in fresh water such that the top of the Styrofoam block, what is the buoyant force acting upon the Styrofoam block
What is momentum of the block
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