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1. An experiment is performed to obtain the value of a physical property. If the true (i.e., correct) value of the property is 50 and the measured (i.e., experimental) value is 30 , the percent error of the experimental result is:
2. A battery operating a large flashlight produces a current of 2 amperes in a lightbulb that has a resistance of 11.8 ohms. The voltage of the battery is:
3. In a pendulum experiment the pendulum moves from one side to the other side in 0.1 second. Calculate the period of the pendulum.
4. Calculate the period of a pendulum that has length = 0.3 m.
5. In an experiment to measure the angular resolution of the human eye, a test chart, can just be detected at a distance of 5.3 m. What is the approximate angular resolution of this eye in milliradians?
The three major forces acting are shown. FM = 80 N, w = 45 N. Calculate the direction and magnitude of the force supplied by the upper vertebrae FV to hold the head stationary, assuming that it acts along a line through the center of mass as do th..
A jogger runs 100m due east, then changes direction for the second leg of the run. At the end of the run, she is 350m away from the starting point at an angle of 25.0° north of east. What were the direction and length of her second displacement? Util..
A potter's wheel (a solid, uniform disk) of mass 6.0kg and radius 25cm spins about its central axis with an angular speed of the wheel is 15rpm, Find the new angular speed of the system in rpm
Train cars are coupled together by being bumped into one another. Compute what is their final velocity
Calculate the canonical ensemble partition function for a collection of INDEPENDENT and NON-INTERACTING harmonic oscillators. Assume the energy spacing between adjacent states in an oscillator is LARGE compared to kT. Calculate in detail; do not s..
In the drawing the head-up display is designed so that the distance between the digital readout device and virtual image 1 is 1.60 m. Find the focal length of the concave mirror
A 4.94-g bullet is shot through a 0.99-kg wood blocksuspended on a string 2.00 m long. The center of mass of the blockrises a distance of 0.50 cm. Find the speed of the bullet as ite merges from the block if its initial speed is 393 m/s.
An electron moves at a speed of 15000 m/s in a circular path of radius 2.2 cm. Find the strength of the magnetic field inside the solieod
the earth completes a circular orbit around the sun in one year. what is the speed of the earth around the sun
The motion of a standing wave on the vibrating string in a previous experiment is very similar to the motion of sound waves in a resonance tube. However, what are the main differences between the types of waves in both experiments?
An electronics tech might work on an appliance while it is pluggedin, but she will take care that her resistance is 200,000; herrubber-soled shoes are 500,000; and the rubber mat on which shestands has a resistance of 1,000,000. What is the maximum h..
A 1500-kg car moving on a flat, horizontal road negotiates a curve, as shown in the figure. If the radius of the curve is 35.0 m and the coefficient of static friction between the tires and dry pavement is 0.500, find the maximum speed the car can..
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