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A marble of mass m = 2.0 kg is dropped from height h = 20 cm onto a spring of spring constant k = 8.0 N/m
What is the velocity of the marble when it hits (reaches) the spring?
What is the maximum distance the spring is compressed?
A point source emits 27 W of sound. A small microphone intercepts the sound in an area of 0.63 cm2, 289 m from the source. Calculate the power intercepted by the microphone in Watts
Two point charges, q1 = -12.5 ?C and and q2 = +18.7 ?C, are placed at two of the corners of a right triangle with a = 23.5 cm, Find the magnitude of the electric field at the third corner of the triangle
A scalloped hammerhead shark swims at a steady speed of 1.3m/s with its 89cm -cm-wide head perpendicular to the earth's 50 T magnetic field. What is the magnitude of the emf induced between the two sides of the shark's head
a rocket is fired at a speed of 93.0 ms from ground level at an angle of 61.0 deg above the horizontal. the rocket is
A diverging lens is to be used to produce avirtual image one-fifth as tall as theobject. Where should the object be placed
Three point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle. The magnitude of each of the charges is 5.0 microC and the lengths are 3.0 cm. Calculate the magnitu..
A 120-V motor has mechanical power output of 2.50 hp. It is 90% efficient in converting power that it takes in by electrical transmission into mechanical power. Find the current in the motor
A certain kind of glass has nblue = 1.560 for blue light and nred = 1.510 for red light. what is the angle between the red and blue light inside the glass
The tune-up specifications of a car call for the spark plugs to be tightened to a torque of 38Nm. With what force must you pull
Draw a few other diagrams of systems equivalent to Figure, and determine the eigenvalues and eigenvectors for ki and mi assigned by your instructor.
q1. a chair of weight 125 n lies atop a horizontal floor the floor is not frictionless. you push on the chair with a
Record the resistance and current values calculated in questions 5, and load the numbers into a spreadsheet. Make a plot of the current I as a function of the total resistance R. (Remember that the R values will go on the x-axis and the I values o..
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