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A simple pendulum uses a steel wire as the string. The length of this wire is 1.5 meter at room temperature. If the temperature is increased by 12.3oC, the length of the wire increases by 1.73 millimeter. Obtain the change in period of the pendulum?
A 150-kg block slides across ice and comes to a stop in 12.50m. Coefficient of kinetic friction among ice and block is 1.800, what is the frictional force acting on the block? What was the speed of the block before it stopped?
There is a square with 4 charges. q3 is 3x10^-6 C and in the top left q4 is -2x10^-6 C and in the top right q2 is 2x10^-6 C and in the bottom left q1 is 4x10^-6 C and in the bottom left The distance between each charge on the outer edge of the squ..
A spring with spring constant 36N/m is attached to the ceiling, and a 5.1-cm-diameter, 1.3kg metal cylinder is attached to its lower end. what length of the cylinder is submerged
A block of wood of mass 2 kg is suspended by long, light strings and is at rest. A bullet of mass 40 g, strikes and remains in the block, causing it to swing. The utmost height of the block above its rest position is 51 cm.
A 50g ball is released from rest 1.0 above the bottom of the track shown. How high will theball go on the right before reversing direction and rolling backdown
If a soldier shoots an enemy with the intent of killing him, he wants the bullet to deliver maximum energy. On the other hand, if he wants to merely knock someone down (say for dispersing a riot) he wants the bullet to deliver maximum force.
An object is in front of a converging lens (f = 0.370 m). The magnification of the lens is m = 3.60. Through what distance should the object be moved
q1. a 0.850 kg block is attached to a spring with spring constant 16.0 nm. while the block is sitting at rest a student
Two fixed navigation beacons mark the approach lane to a star. Determine the time interval of the passage
The lenses used in a compound microscope have powers of + 90D and + 60D . If a total magnification of -250x is desired, what should be the distance between the two lenses
question a car goes faster and fast backward down a long driveway. the cars velocity changes from -2ms to -9ms in 2
Two tuning forks have frequencies of 272 Hz and 294 Hz. What is the beat frequency if both tuning forks are sounded simultaneously
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