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Two cables tied together at C are loaded as shown. Determine the range of values of Q for which the tension will not exceed 60 lbs in either cable. The angle between the wall and A (top cable) is 30 degrees, the angle between the wall and B (bottom cable) is 60 degrees. Q is the variable pointing straight down, and P is the red vector pointing up and to the right at 75 lbs, 30 degrees above the horizontal
To hoist himself into a tree, a 72.0-kg man ties one end of a nylon rope around his waist and throws the other end over a branch of the tree. determine the man's upward acceleration
The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is 96.3 m. How tall is the antenna
A conducting rod is moving during a magnetic field, as in the drawing. The magnetic field strength is 0.65 T, and the speed of the rod is 4.8 m/s. Abruptly, the field strength decreases to 0.48T. To what value must the speed v of the rod be adjusted ..
A block of ice at 0°C is added to a 150 g aluminum calorimeter cup which holds 210 g of water at 12°C. If all however 2.0 g of ice melt, what was the original mass of the block of ice?
At time=0s, the block is offset from its equilibrium position and released from rest. Determine the trajectory of the block, x(t), when its initial displacement from equillibrim is (i) 5m/s and (ii) -5m/s.
In a television, electrons shoot down the picture tube and strike fluorescent material on the screen, causing light to be emitted and producing the picture. assume that a certain set, the electrons are accelerated from rest 2.0 x 10^8 ms-1 in abou..
a 25g bullet pierces a sand bag 27cm thick. if the initial bullet velocity was 64 ms and it emerged from the sandbag
A canon ball shots with an initial velocity of 141 m/s at an angle of 45o follows a parabolic path, what is the speed of the cannon ball when it hits the balloon
To get back to the shuttle, the astronaut unstraps a 10-kg tool kit and throws it away with a speed of 8 m/s. In the script, the astronaut, who has a mass of 80 kg without the toolkit, survives, but is this accurate.
expand the van der waals equation in a taylor series in v - vc keeping the terms through the third degree. show why
A cyclotron with a magnetic field B=0.9 T and a maximum orbital radius of 50 centimeter is used to accelerate deuterons (2Hnuclei). Find the frequency of the AC accelerating voltage
You are given a container with 5.0g of hydrogen atoms. What is the total charge on the electrons in the container? What is the total charge on the protons
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