Magnitude and direction of the car displacement
A driver becomes lost and travels 12.0 km west, 5.o km south, and 8.0 km east. FInd the magnitude and direction of the car's displacement from the starting place.
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Explain physically how this happpens. Also, show why a higher-than-normal frequency results if the reflector is moving toward the observer and a lower frequency if it is moving away.
The pendulum of a large clock consists of a thin steel rod with a heavy weight at the end. At 20 degrees C the rod is 1.22 meters long and the clock keeps accurate time. (a) By how much does the length of the steel rod change if the temperature ri
A television set connected to a 120 V outlet consumes 81 W of power. How long does it take for 10 million electrons to pass through the TV? Let I=0.68
A particle with a mass of 1.6 × 10-20 kg is oscillating with simple harmonic motion with a period of 3.5 × 10-5 s and a maximum speed of 1.8 × 103 m/s. Calculate (a) the angular frequency and (b) the maximum displacement of the p
A 82.0kg crate is resting on a frictionless surface that is inclined at an angle of 25 degreesabove the horizontal. the crate is held in place by a rope that is parallel to the incline. what is the tension of the rope?
A worker drops a wrench from the top of a tower 61.0 m tall. With what velocity does the wrench strike the ground? (Assume the positive direction is upward.)
How does the magnitude of electrical force between a pair of charged particles change when they are brought to half their original distance of separation?
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The Joint Commission reported that [poor] communication was the root cause of 66% of Sentinel Events between 1995-2005.
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Scientists make predictions using the best possible and most available knowledge that they have at the time.