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A cart of mass M1 = 3 kg is attached to a block of mass M2 = 5 kg by a string that passes over a frictionless pulley. The system is initially at rest and the table is frictionless. After the block has fallen a distance h = 1 m:
a) What is the work Wg done by gravity on the system?
b) What is the increase in kinetic energy DK of the cart-plus-block system?
c) What is the speed |v| of the cart-plus-weight system?
d) What is the work Ws done on the cart (not the block!) by the string?
e) What is the tension T in the string?
Suppose we rely upon friction between the wall and the rod to hold up the sign (there is no hinge attaching the rod to the wall). What is the smallest value of the coefficient of friction
In a women's 100-m race, accelerating uniformly, Laura takes 2.00 s and Healan 3.00 s to attain their maximum speeds, What is the acceleration of each sprinter
A rescue helicopter is lifting a man (weight = 719 N) from a capsized boat by means of a cable and harness, What is the tension during the remainder of the rescue when he is pulled upward at a constant velocity
Helium gas with a volume of 2.60L under a pressure of 1.70atm and at a temperature of 43.0 oC is warmed until both the pressure and volume of the gas are doubled. How many grams of helium are there
Felipe over the summer goes to six flags, he gets on a ride that starts at a height of 29m traveling at a speed of 5 m/s, what is the normal force from the seat when he is at the top of the loop
questioni require these 5 questions answered. i want diagrams and step-by-step detailed solutions please 2.1 compute
what would the g-force, kinetic energy and overall force a human head would absorb if they were broadside t-boned by an 80,000 pound tanker that was moving 45 miles per hour and that head absorbing party
The coefficient of kinetic friction between a 20 Kg box and the floor is 0.40. How much work does a pulling force do on the box in pulling it 8.0 m at the constant speed? The pulling force is directed 390 above the horizontal.
A loudspeaker of mass 25 {rm kg} is suspended a distance of h = 1.60 {rm m} below the ceiling by two cables that make equivalent angles with the ceiling. Each cable has a length of l = 3.50 {rm m}.
A 10.0 g lead bullet at 23 degrees C slames into a stone wall. Assuming no loss of energy to the environment, how fast must the bullet be traveling
What is the integral from s to p of B dot dL, where an integral is taken along the dotted path shown, first from point P to point R at (x,y) = (0.707d, 0.707d), and then to point S at (x,y) = (0.6d, 0.6d).
The intensity (in W/m2) of one sound is 5.46 times as great as the intensity of another sound. what is the intensity level of the louder sound
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