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Please show work so I can see all the steps. A metallic sphere initially has a net charge of +4.0 nC. A negatively-charged rod initially has a net charge of -6.0 nC. When the rod touches the sphere 8.2 x10^9 electrons are transferred to the sphere. What is the new net charge on the sphere?
A copper bar is moved to the right while its axis is maintained in a direction perpendicular to a magnetic field, what is the direction of the magnetic field
The mass of the H2 molecule is 3.3x10-24 g. If 1023 hydrogen molecules per second strike 2.0 cm2 of wall at an angle of 45° with the normal when moving a speed of 105 cm/s
A circular disk has surface charge density 8.0nC/cm^2. What will the surface charge density be if the radius of the disk is doubled? Express your answer to two significant figures and include the appropriate units.
What is the total magnitude of the magnetic flux by the coil before it is rotated.
A rectangular loop of side lengths 3 cm and 5 cm, What is the speed of the loop if the induced current is 1.5 mA
A step-down transformer is used for recharging the batteries of portable devices such as tape players. find the voltage supplied to a tape player from the transformer
If you did an experiment and measured g to be 9.3 m/s2, and the accepted value is 9.81 m/s2, what was your percent error
A conveyor belt is moving horizontally with a constant speed of 7 m/s (wrt earth). What is displacement of the bag (wrt earth) by the time it reaches the speed of the belt
A 2.00 nF capacitor with an initial charge of 5.12 µC is discharged through a 1.76 k resistor. What is the maximum current in the resistor
Illustrate what is the minimum centripetal acceleration the truck must have going around the circular curve with radius 0.35 km so that it will clear the gully and land on the other side?
IN A VEEERTICAL JUMP AND REACH TEST A 60 KKG SSSTUDENT JUMPS 60CM, WHILE A 90 KG STUDENT JUMPS 45 CM. WHICH JUMPEER WAS MORE POWEERFUL
A light beam having a wavelength of 654 nm in air is directed into glycerine (n=1.47). What is the frequency of light in glycerine
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