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When the temperature of a thin silver [? = 19 × 10-6 (C°)-1] rod is increased, the length of the rod increases by 3.7 × 10-3 cm. Another rod is identical in all respects, except that it is made from gold [? = 14 × 10-6 (C°)-1]. By how much does the length of the gold rod increase when its temperature increases by the same amount as that for the silver rod?
A flashlight on the bottom of a 4-m deep swimming pool sends a ray upward and at an angle so that the ray strikes the surface of the water 1.70-m from the point directly above the flashlight. What angle (in air) does the emerging ray make with wat..
Suppose that an electron is trapped within a small region and the uncertainty in its position is 7.20 multiply.gif 10-15 m, find the minimum uncertainty in the electron's momentum
A 0.07 kg bullet traveling at 599 m/s hits a 6.7 kg block of wood, What is the velocity (speed)of the wood block immediately after the bullet hits it
If the balls are released from a height where the bottom of the basketball is at 0.781m above the ground, what is the absolute value of basketball's momentum just before it hits the ground.
An ideal gas at 17.8 °C and a pressure of 1.66 x 105 Pa occupies a volume of 3.22 m3. calculate How many moles of gas are present
Two objects of masses m1=0.56 kg and m2=0.88 kg are placed on a horizontal frictionless surface and a compressed spring of spring constant k=280 N/m is placed between them. find the final velocity of each object
Air flows through the supersonic nozzle. The inlet conditions are 7 KPa and 420 degree C. The nozzle exit diameter is adjusted such that the exiting velocity is 700m/s. Calculate the exit temperature
A 4.5kg squid takes in 1.75kg of water while at rest, and then expels the water at a speed of 3.5m/s, calculate the work done by the squid's muscles during this process
The location of a particle (in m) is given by its x, y and z coordinates as function of the time, calculate the y-component of the average velocity between t = 3.00 s and t = 12.00 s
A converging lens with a focal length f1 = 4cm is placed to the left of a second identical lens f2. What is the separation distance between the two lenses
Charges of 6.0 uC are placed at corners of a square that has sides of 2.0cm. Find the magnitude and direction of the force on the charges
A block of mass 2.50 kg is pushed 3.00 m along a frictionless horizontal table by a constant 18.0 N force directed 25.0° below the horizontal. Determine the work done by the net force on the block
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