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A hollow aluminum sphere with outer diameter 8.7 centimeter has a mass of 770 gram. Determine what is the sphere inner diameter?
in cm
a calculate the binding energy of 23na using the table of atomic masses. express your answer in unified mass units but
A heat engine using a diatomic ideal gas goes through the following closed cycle, What is the thermal efficiency of this heat engine
A ladder 5.6 m long leans against a wall inside a spaceship. From the point of view of a person on the ship, Find the angle the ladder makes with the floor
What is the block's distance from equilibrium as the speed are 36 cm/s? What is block's position at t=1.0 s.
A potters wheel is a disk of mass 3.50kg and radius .450m and is spinning freely around a vertical axis through its center with an angular speed of 14.0rad/s. what is the angular speed of the wheel+clay
Gold has a molar mass of 197 g/mol. How many moles of gold are in a 9.09 g sample of pure gold, How many atoms are in the sample
A block of mass .250 kg traveling at (1.0 m/s)y hits a second block with a .375 kg mass travelling at (1.2m/s)x, What is the velocity of the 1st blcok after they hit each other
A 1.5--tall object is 18 in front of a concave mirror that has a 60 focal length. Calculate the position of the image. Calculate the height of the image
When a current flows in an aluminum wire of diameter 2.45 mm, the drift speed of the conduction electrons is 1.05 × 10-4 m/s. What is the electron current in the wire
The AC voltage across a capacitor with C = 1.2 µF has an amplitude of V max = 16 V, and the current during the capacitor has an amplitude of 5.0 mA. What is the frequency?
when the string of a guitar is pressed against a fret the shortened string vibrates at a frequency 5.95 higher than
A 74 kg diver steps off a 14 m tower and drops from rest straight down into the water. If he comes to rest 4.4 m beneath the surface, identify the average resistance force exerted on him by the water.
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