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Problem: A wire with current I = 5 A flows at an angle of 30 degrees to the direction of a uniform magnetic field of 1 T.
1- What is the magnitude of the force exerted on a 4 m length of wire?
I need help for the above problem and answer in units of N.
A large rectangular raft (density 650kg/m3) is floating on alake. The surface area of the top of the raft is 8.2m2 andits volume is 1.80m3, Calculate the height h of the portion of the raft that is abovethe surrounding water
The drawing below shows an inverted "A" that is suspended from the ceiling by two vertical ropes. Each leg of the "A" has alengh of 2L and a weight of 120.0 N. The horizantal crossbar has a negligible weight. Find the force that the crossbar applies ..
Lightning As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and a cloud at an altitude of 470m to be the other plate. How much charge can the cloud hold before the dielectric strength of the air is ex..
A fully charged capacitor with a voltage of 270 kV is discharged through a resistor. What is the voltage across the capacitor at the end of four time constants?
a 26-cm-long wire with a linear density of 15 gm passes across the open end of an 87-cm-long open-closed tube of air.
an electric field of intensity 3.0 knc is applied along the x-axis. calculate the electric flux through a rectangular
q1. a 77 person stands on the uniform ladder 4.0 long that weighs 100. the floor is rough hence it exerts both a normal
A 3.1 micro Coulomb charge hangs from a string midway between two sheets and makes an angle of 10 degrees with the vertical, what is the tension in the cord
positive freedom is the ability to do what one should do. negative freedom is the ability to do what one should not
the virgo cluster contains about 1300 galaxies and is at a distance of 16 mpc. the galaxies have an rms velocity about
Three point charges are placed as shown in the figure (Figure 1) . The positive point charge has a value 6.5nC. What is the net electric field at the position of the dot?
a a lightning rod is a rounded copper rod mounted on top of a building and welded to a heavy copper cable running down
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