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The position of a mass that is oscillating on a spring is given by x= (12.3 cm) cos[(1.26 s^-1)t].
What is the speed of the mass when t= 0.805s?
What is the amplitude and angular frequency?
What is its frequency and its period?
The magnetic energy stored in a certain inductor is 2.50 × 10-2 Joule when the current is 6.00 × 10-2 Amp. Estimate what the inductance
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How does the concept of an image antenna simplify the determination of the radiation pattern of an antenna above a perfect-conductor surface?
An airplane with a speed of 74.9 m/s is climbing upward at an angle of 38.3 ° with respect to the horizontal. Relative to the ground, determine the angle of the velocity vector of the package just before impact
How efficient is a heat engine that takes in 5.7 Joules of heat and does 3 Joules of work on its environment? Express your result as a decimal number
What will be distance between the centres of soap bubbles (in cm)?
Some object moves 100.0 m at an angle of 36° west of south. During this motion, a 92.0 N force acts on the same object, what is this force's orientation
Evaluate the peak electric field inside a 645 W microwave oven under the simplifying approximation that the microwave propogatesas a plane wave through the oven's 740 cm2 cross-sectional area
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you are to determine the power rating of the motor in an elevator system. the elevator with a full load weights 2000 kg
An earthquake can produce a seiche in a lake in which the water sloshes back and forth from end to end with remarkably large amplitude and long period. Consider a seiche produced in a farm pond. Assume the pond is 8.28 m long and assume it has a unif..
Illustrate what is the velocity of the second block after the bullet imbeds itself? (b) Find the ratio of the total kinetic energy after the collision to that before the collision.
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