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A toy spring launcher is used to launch a 10.5 g object into the air. The spring of the launcher is initially compressed 6.0 cm. The spring has a spring constant of 5.2 x 10² N/m.
A block is connected to a spring that is suspended from the ceiling. Assuming air resistance is neglected; explain the energy transformations that occur within the system consisting of the block
A 2.0-kg ball attached to a string whose length is 1.5m movescounterclockwise (as viewed from above) in a horizontalcircle. The string makes an angle θ= 30o withthe vertical.
A large mountain can slightly affect the direction of "down" as determined by a plumb line. How far would the lower end move toward the sphere
question1a rocket with mass m is fired vertically upward. at an instant it reaches an altitude of 800m and a speed of
A standing wave in a column of air with both ends open has a frequency of 440 Hz. The next higher harmonic has a frequency of 700 Hz. How long is the column of air
A test tone used on a radio has a frequency of 987 Hz. What is the wavelength of this sound in air at normal room temperature 20oC
A uniform 270N ladder rests against a perfectly smooth wall, making a 40.0? angle with the wall. What is the friction force on the ladder at the floor
A walker and a runner leave your front door at the same time. They move in the same direction at different constant velocities. Describe the position-time graphs of each.
A gas is kept at constant pressure. If its temperature is changed from 15 to 145°C, by what factor does the volume change
A plastic cylinder of length 36 cm its ends ground to convex (from the rod outward) spherical surfaces, each having radius of curvature 16 cm. How far will the image of the object lie from the right end
As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and a cloud at an altitude of 510m to be the other plate.
If a washing machine drum has a radius of 27 cm and spins at a rate of 3.9 revs per second, what is the strength of the artificial gravity that the clothes are subjected to? Express answer as amultiple of G. Please work out this question using "ma..
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