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The ceiling of a classroom is 3.75 m above the floor. A student tosses an apple vertically upward, releasing it 0.50 m above the floor. What is the maximum initial speed that can be given to the apple if it is not to touch the ceiling?
The power brick for the author's laptop computer has a power rating of 60 W. It uses a step-down transformer to convert the AC voltage from a wall socket (Vrms = 120 V) to a value near 12 V.
a cube of ice is taken from the freezer at -8.2c and placed in a 92g aluminum calorimeter filled with 309g of water at
A 6.3 μC point charge and a -1.7 μC point charge are separated by a distance of 0.00035 meter. Obtain the electric potential energy of this system
An ideal gas expands at a constant total pressure of 5.4 atm from 405 mLto 668 mL. Calculate the total heat flow into the gas
A uniform narrow tube 1.79 long is open at both ends. It resonates at two successive harmonics of frequencies 285 and 342. What is the speed of sound in the gas in the tube
A commuter train blows its horn as it passes a passenger platformat a constant speed of 30.0 m/s. The trainhorn sounds at a frequency of 330 Hz whenthe train is at rest. What wavelength does the observer find in each case?
On illustrate what form does an S corporation report its income to the IRS? When is the tax return due? Illustrate what information does the S corporation provide to shareholders to allow them to complete their tax returns?
A circular parallel-plate capacitor with a spacing of 3.2 mm is charged to produce a uniform electric field with strength of 1.50 multiplied by 106 N/C. What plate radius is required if the stored charge is -15.6 µC.
Describe heat capacity and specific heat capacity of a substance. What are the units for these quantities (SI system)? For a closed system containing a mass m of a substance by specific heat capacity c, what is the change in temperature when Q units ..
A person lifts a 4.7 kg cement block avertical distance of 1.02 m and thencarries the block horizontally a distance of 9.10 m. How much work is done by gravity in the process
For no apparent reason, a poodle is running at a constant speed of 4.40 {rm m/s} in a circle with radius 3.0 {rm m}. Let vec v_1 be the velocity vector at time t_1, and let vec v_2 be the velocity vector at time t_2.
What is formula for the acceleration a of the cart in terms of the tension T, and its mass M? make use of the two equations you found above to eliminate T to give the acceleration of the cart in terms of M, m and g. Compute the numerical value for..
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