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Two metal balls m1=1kg and m2=2kg are traveling toward each other with corresponding speeds v1=1m/s v2=2m/s. If the collision is perfectly inelastic, how much heat is generated due to the collsion?
A) An energetic photon of wavelength 5.1 nm scatters off an electron at rest at an angle of 63 degrees. What is the wavelength of the scattered photon?
As a helicopter carrying a crate takes off, its vertical position (as well as the crate's) is given as: y(t) = At^3 where A is a constant and t is time with t = 0 corresponding to when it leaves the
A cube of ice is taken from the freezer at -7.1 Cand placed in a 96 g aluminum calorimeter filled with 308 g of water at room temperature of 20.0 C. The final situation is observed to be all water
A defibrillator consists of a 16.1-µF capacitor that is charged to 8.3 kV. (a) If the capacitor is discharged in 1.0 ms, how much charge passes through the body tissues? (b) What is the average
Suppose the insulating qualities of the wall of a house come mainly from a 4.0-in layer of brick and an R-19 layer of insulation. What is the total rate of heat loss through such a wall, if its tot
A 34g glass thermometer reads 22.1C before it is placed in 145 mL of water. When the water and thermometer come to equilibrium, the thermometer reads 35.2 C. What was the original temperature of th
A positive charge of 0.900u C is located in a uniform field of 9.00×10^4 N/C. A negative charge of -0.200u C is brought near enough to the positive charge that the attractive force between the
A small object of mass 4.04 g and charge -19 µC is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. What are the magnitude and dire
What must the bandwidth be for a radar system which uses pulse widths of .1 us? If this radar is used for determining distance, what is the uncertainty in its measurement?
While the spring is being compressed, what work is done on the block by the gravitational force on it?
A total of 8.77·10^6 electrons are placed on an initially uncharged wire of length 1.87 m. What is the magnitude of the acceleration of a proton placed at a point in space, which is a perpen
A spherical water drop, 1.40 um in diameter, is suspended in calm air owing to a downward-directed atmospheric electric field E = 412 N/C. What is the weight of the drop and how many excess electron
What is the angular radius of the first dark ring for a point source being imaged by this telescope? Use 550 nanometers for the wavelength, since this is near the average for visible light.
What is the strength of the electric field 4.0 cm from a small glass bead that has been charged to + 6.0 nC ? What is the direction of the electric field 4.0 cm from a small glass bead that has been
What is the height of the rocket above the surface of the earth at t = 10s ?
A) An egg is thrown nearly vertically upward from a point near the cornice of a tall building. It just misses the cornice on the way down and passes a point a distance 45.0m below its starting point
What is the force between the two alpha particles when they are 4.00 x 10^-15 m apart? What is the initial magnitude of the acceleration of the alpha particles due to this force? Note that the mass
How much time is required for the car to pass the truck? What distance does the car travel during this time? What is the final speed of the car?
A parallel-plate capacitor is made from two aluminum-foil sheets, each 5.7 cm wide and 5.6 m long. Between the sheets is a Teflon strip of the same width and length that is 3.4×10-2 mm thick.
Two point charges are placed along a horizontal axis with the following values and positions: +4 µC at x = 0 cm and - 17 µC at x = 44 cm. At what point (the coordinate) along the x axis
During the move, the tension in the cord is a constant 25.0 N. What is the change in the kinetic energy of the cart during the move?
Two equal charges, each of charge Q = -3.00 uC, and mass m = 27.0 mg, are r = 44.0 cm apart. If they are released from rest at the same instant, how fast will they be moving when they are very far
If the electric field between the plates has a magnitude of 2.7×10^4N/C , what is the potential difference between the plates? Express your answer using two significant figures.
When wearing his glasses, he looks not at actual objects but at the virtual images of those objects formed by his glasses. Suppose he looks at a 10-cm-long pencil held vertically 1.5 m from his glas