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A mass is attached to a spring with spring constant k = 30 N/m. The spring is stretched to 10 cm past its resting position. How much work (in J) does the spring do when the object is released and the mass travels back to its initial position?
Suppose Magnetic monopoles may exist, first start off by writing maxwells equations in electro- and magneto-statics and also write down the usual Lorentz force law for a charge in E and B fields. Now modify these 5 equations to allow for the possi..
How long does it take for a golf ball to fall from rest for a distance of 11.2m
A person hears a siren as a fire truck approaches and passes by. The frequency varies from 476Hz on approach to 404Hz going away. What is the speed of the truck if the speed of sound in air is 343m/s?
The parachute on a race car of weight 8130 N opens at the end of a quarter mile run when the car is traveling at 30.7 m/s. What total retarding force must be supplied by the parachute
If the pressure of the 3.0-cm3 volume is reduced to 2.6 × 10?11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container
On an essentially frictionless, horizontal ice rink, a skater moving at 3.7m/s encounters a rough patch that reduces her speed by 41% due to a friction force that is 26% of her weight. find the length of this rough patch
The temperature difference between the inside and the outside of a home on a cold winter day is 57.0°F. Express this difference on the Celsius scale
A certain asteroid was observed to sweep out an orbital area of 450 billion square kilometers during the year 2013 .a. How much orbital area will the asteroid sweep out this year?
a long wire carrying a 5.5 a current perpendicular to the xy-plane intersects the x-axis at x-2.0cm. a second parallel
A point charge q = ?2.50?C is placed at the point described in part (a). What are the magnitude and direction of the force exerted by the charge on the ring
A woman hangs by her feet from "gravity boots" that support her weight from above. What is the average blood pressure in a major artery in her ankle
A rectangular loop of 250 turns is 20.8 cm wide and 16.5 cm high. What is the current in this loop if the maximum torque in a field of 0.410 T is 23.1 N·m
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