The force on a wire is a maximum of6.71 10-2 N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic fieldis vertical. The wire is observed to "jump" toward the observerwhen the current is turned on.(a) What type of magnetic pole is the top pole face?NorthpoleSouthpole(b) If the pole faces have a diameter of 15.0 cm, estimate the current in the wire if thefield is 0.16 T. A(c) If the wire is tipped so that it makes an angle of 10.0°with the horizontal, what force will it now feel?N

Atank holds 1000 gallons of water, which drains from the bottom of the tank in half an hour. the values in the table show the volume v of water remaining in the tank (in gallons) after t minutes. t(min) 5 10 15 20 25 30v(gal) 694 444 250 111 28 0(a) if p is the point (15, 250) on the graph of v, find the slopes of the secant lines pq when q is the point on the graph with t = 5, 10, 20, 25, and 30.(b) estimate the slope of the tangent line at p by averaging the slopes of two secant lines.(c) use a graph of the function to estimate the slope of the tangent line at p. (this slope represents the rate at which the water is flowing from the tank after 15 minutes.)show all steps.

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by