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A block of mass m1 = 2.9 kg initially moving to the right with a speed of 4.1 m/s on a frictionless, horizontal track collides with a spring attached to a second block of mass m2 = 4.1 kg initially moving to the left with a speed of 2.7 m/s as shown in figure
(a). The spring constant is 523 N/m What if m1 is initially moving at 3.4 m/s while m2 is initially at rest?
A. Find the maximum spring compression in this case x= ?B. What will be the individual velocities of the two masses (v1 and v2) after the spring extended fully again? (That is, when the two masses separate from each other after the collision is complete.)v1= ? m/s to the leftv2= ? m/s to the right
An object weighing 32 lb is released from rest 50 ft above the surface of a calm lake. Before the object reaches the surface of the lake, the air resistance (in lbs) is given by 2v, where v is the velocity (in feet per second).
A resistor (R = 900 ?), a capacitor (C = 0.25 µF), and an inductor (L = 3.5 H) are connected in series across a 240 Hz AC source for which ?Vmax = 145 V. Calculate the following. (a) the impedance of the circuit ? (b) the maximum current delivered by..
A point source of light is 200 cm below the surface of a body of water. Find out the diameter of the circle at the surface through which light emerges from the water.
resistors are assigned a power rating. if the power rating is exceeded significantly the resistor will overheat and
A beam contains 4.0 108 doubly charged positive ions per cubic centimeter, all of which are moving north with a speed of 1.3 105 m/s
The manometer tube has an internal diameter of 0.5 cm and it is initially filled with water. Exactly 2 cm3 of an unknown liquid is then poured into one leg of the manometer, and a displacement of 5 cm between the surfaces is measured as shown. Fin..
A flute has a length of 58.0 cm. If the speed of sound in air is 343 m/s, what is the fundamental frequency of the flute
How much work is done by the Moon's gravitational field as a 1065 kg meteor comes in from outer space and impacts on the Moon's surface
7.0 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 3.1 m/s2, find the force exerted by the rope on the bucket
A train travels due south at 60 m/s. It reverses its direction and travels due north at 60 m/s. What is the change in velocity of the train
Two 7.0mm×7.0mm electrodes with a 0.10-mm-thicksheet of Mylar between them are attached to a 7.0Vbattery, What is the electric field before and after the Mylar is withdrawn
Suppose the distance from the lens system of the eye (cornea + lens) to the retina is 18 mm. What must the power of the lens be when looking at distant objects
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