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The spring constant of a spring is 1260 N/m. A body is suspended from the spring, causing it to stretch 7.0 cm. What is the mass of the body?
Two forces parallel to the x axis do 16.8 J of work on a small tray while moving it 17.5 m in the x direction across a gym floor. What is the other force
A man strides across a bed of embers. Assume the glowing charcoal is covered with a thin layer of ash 0.50 mm thick and is at a temperature of 650C. The thermal conductiviity of ash and charcoal is 1.5 W/ (mxK). (a) Estimate the heat transferred t..
A woman stands on a scale in a moving elevator. Her mass is 73.0 kg, and the combined mass of the elevator and scale is an additional 815 kg. What does the scale read during the acceleration
On an airplane's takeoff, the combined action of the air around the engines and wings of an airplane exerts a 7960-N force on the plane, What is the weight of the plane
An ac generator emf is = m sin d t, with m = 26.4 V and d = 301 rad/s. It is connected to a 15.4 H inductor. What is the maximum value of the current
You are the technical consultant for an action-adventure film in which a stunt calls for the hero to drop off a 23.7-m tall building and land on the ground safely at a final vertical speed of 3.85 m/s. How many revolutions does the drum make during..
A 900-kg car traveling east at 15.0 m/s collides with a 750-kg car traveling north at 20.0 m/s. The cars stick together. What is the speed of the wreckage just after the collision
While running home from second base a 67 kg runner rounds third base at a speed of 3.1 m/s, What is the centripetal force of this turn on third base
Two pots are identical except that the flat bottom of one is aluminum, whereas that of the other is copper. find the temperature of the heating element on which the copper bottom rests
The small spherical planet called "Glob" has a mass of 7.28 x 10^18 kg and a radius of 6.26 x 10^4 m. What was the initial speed of the rock
A 20.0cm long organ pipe is filled with air and is open at one end and closed at the other. What is the frequency of the third mode
An object located 32.1 cm in front of a lens forms an image on a screen 9.5 cm behind the lens. determine the magnification of the object
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