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Q. Suppose you are climbing in the High Sierra when you suddenly find out yourself at the edge of a fog-shrouded cliff. To find the height of this cliff, you drop a rock from the top and, 7.00 {rm s} later, hear the sound of it hitting ground at the foot of the cliff. Ignoring air resistance, how high is the cliff if the speed of sound is 330 {rm m/s}?
A wheel 65 cm in diameter accelerates uniformly from 230 rpm to 355 rpm in 7s. How far will a point on the edge of the wheel have traveled in this time.
For a damped oscillator with a mass of 170g, the spring constant 92 N/m and a damping coefficient of 55g/s, what is the ratio of amplitude of the damped oscillations to the initial amplitude at the end of 22 cycles.
What is the horizontal distance x (in metres) to the base of the wall supporting the mirror of the nearest point of the floor that can be seen reflected in mirror.
What is current temperature and peak wavelength What is the proper description of their situation
A 1500 kg car moving east at 26 m/s collides with a 1720 kg car moving south at 15 m/s and the two cars stick together.
Hydraulic engineers often use, as a unit of volume of water, the "acre-foot", defined as volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumps 2.0 in. of rain in 30 min on a town of area 35 km2. What volume..
A 1590 kg car starts from rest on a horizontal road and gains a speed of 61 km/h in 30 s (a) what is its kinetic energy at the end of the 30 s.
A wire streches from the top of a vertical pole to a point on level ground 16 feet from the base of the pole. if the wire makes an angle of 62 degrees withe the ground, find the height of the pole and length of the wire.
On a certain amusement park ride, passengers are seated in a horizontal circle of radius 7.5m. the seats begin to rotate from rest and are uniformly accelerated for 21 seconds to a most rotational speeds of 1.4 rad/s.
A plano convex lens of focal length 16 cm is fixed on the side of the box with convex surface outside an object is placed at 26 cm from the lens find the position of the image while (1) the box is empty (2) field with water.
What is the greatest angle of elevation
What is the smallest quantum of energy that can be absorbed by the molecule in a rotational excitation? What is the smallest quantum of energy that can be absorbed in a vibration excitation? In what regions of electromagnetic spectrum do the transiti..
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