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It is desired to magnify reading material by a factor of 2.21× when a book is placed 7.96 cm behind a lens. What is the power of the lens in diopters? (Do not enter units).
A 61 kg speed skater with the velocity of 16 m/s comes into a curve of 18 m radius. How much friction should be exerted between skates and ice to negotiate the curve.
A compressed-air cylinder is known to fail if the pressue exceeds 100 atm. What is the pressure inside the cylinder during the fire
You are designing a delivery ramp for crates containing exercise equipment. Calculate the maximum force constant of the spring kmax that can be used in order to meet the design criteria
In very cold weather, a significant mechanism for heat loss by the human body is energy expended in warming the air taken into the lungs with each breath. How much heat is lost per hour if the respiration rate is 19.0 breaths per minute
you apply a potential difference of 4.5 volts between the ends of a wire that is 2.5 m in length and .654mm in radius. What length of nichrome wire will you use
Two loudspeakers emit sound waves along the x-axis. A listener in front of both speakers hears a maximum sound intensity, What is the phase difference between the speakers
A pendulum bob swings a total distance of 4cm from end to end and reaches a speed of 10cm/s at the midpoint. Find the period of oscillation
On a frozen pond, a 9 kg sled is given a kick that imparts to it an initial speed of v0 = 2.5 m/s. find the distance the sled moves before coming to rest
Create a graph of x-position, x-velocity, and x-acceleration versus time and a graph of y-position, y-velocity, and y-acceleration versus time.
Starting from rest, your friend dives from a high cliff into a deep lake below, yelling in excitement at the thrill of free-fall on her way down. How long has your friend been in the air when she emits the yell whose frequency shift you hear
An object is located at -3 cm. If its maximum oscillation amplitude 9cm what is the phase constant in radius
List and explain briefly similarities and differences between the electric force between two charges and the gravitational force between two masses.
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