A long metalic strip 1.8 cm wide and 1.0 mm thick is placed in a 1.4-T magnetic field as in the (Figure 1). When a steady current of 17 A passes through it, the Hall emf is measured to be 1.02 μV. Figure1 of 1 Part A Determine the drift velocity of the electrons. Express your answer to two significant figures and include the appropriate units. vd v d = Previous AnswersRequest Answer Incorrect; Try Again; 5 attempts remaining Part B Determine the density of free (conducting) electrons (number per unit volume) in the copper. Express your answer using two significant figures. n n = nothing electrons/m3 Request Answer Provide Feedback Incorrect. Incorrect; Try Again; 5 attempts remaining. No additional feedback.

Imagine two carts with different masses colliding (m1 = 2.0 kg, m2 = 1.0 kg). If cart one is initially moving at 10 m/s and the other cart is stationary, calculate the final speed of each mass after they have a 100% elastic collision. Please show all work!

A 1.0-kg standard cart collides on a low-friction track with cart A. The standard cart has an initial xcomponent of velocity of +0.40 m/s, and cart A is initially at rest. After the collision the x component of velocity of the standard cart is +0.20 m/s and the x component of velocity of cart A is +0.70 m/s . After the collision, cart A continues to the end of the track and rebounds with its speed unchanged. Before the carts collide again, you drop a lump of putty onto cart A, where it sticks. After the second collision, the x component of velocity of the standard cart is -0.20 m/s and the x component of velocity of cart A is +0.50 m/s .

What is the inertia of the putty?

How much 1.0 mm diameter copper wire would it take to equal the resistance of one 100 Ω resistor? The resistivity of copper is 1.68*10-8 Ωm

b) What would be the current if this wire was connected to a 12.0 V battery?

c) How many electrons per second pass by a point on the wire?

d) If this wire was coiled up and submerged in 100 mL of water at 20oC, how long would it take for the water to boil? CH2O = 4186 J/kgC

Suppose I have a current source of 1.0 Amperes flowing through each of the following coils. What is the magnetic field in Tesla and in Gauss at the stipulated points? 1) At the center of a single 200-turn coil with a radius of 103 mm. 2) A the midpoint between two 200-turn coaxial coils of radii 103 mm and separated by a distance of 103 mm. (Assume the currents are arranged so that the fields add constructively). 3) At the center of a 565-turn, 146 mm-long solenoid of radius 34.1 mm.

Suppose that the united states currently imports 1.0 million pairs of shoes from china at $20 each. With a 50% tariff, this made the consumer price in the United States $30.The price of shoes in Mexico is $25 suppose that as a result of free trade agreement with Mexico, the United states imports 1.2 million pairs of shoes from Mexico and none from china. What are the gains and losses to U.S consumers, U.S producers, and U.S government and the world as a whole?

Consider two local banks. Bank A has 76 loans​ outstanding, each for​ $1.0 million, that it expects will be repaid today. Each loan has a 6 % probability of​ default, in which case the bank is not repaid anything. The chance of default is independent across all the loans. Bank B has only one loan of $ 76 million​ outstanding, which it also expects will be repaid today. It also has a 6 % probability of not being repaid. Calculate the​ following:

a. The expected overall payoff of each bank.

b. The standard deviation of the overall payoff of each bank.

A bullet flies horizontally, hits a wooden block suspended from a 1.0 m string, and gets stuck in the block. The angle of deviation of the string equals 11 degrees. The mass of the bullet is 1000 times smaller than the mass of the block. What is the initial speed of the bullet? Point out the laws of physics in the solution and show all steps.

Suppose an agent (investor) from the U.S. with $1.0 million is choosing between bank deposits denominated in either euro or dollars. Also, suppose that the (one-year) interest rate paid on the $ deposits is 1% (0.01) and on the euro deposit is 2% (0.02), the (one-year) forward $-EURO exchange rate (F$/€ ) is 1.60 and the current spot rate (E$/€ ) is 1.65. Based on this information, answer the following questions.

(a) What is the forward spread? Is the dollar at forward premium or discount? And by how much (%)?

(b) What is the (hedged = riskless) rate of return on the euro deposits?

(c) Based on your answer above, is there an arbitrage opportunity between the two deposits? Explain why or why not.

(d) If the spot rate of exchange, as well as the interest rates, are kept at their current levels (stated above), what will be the equilibrium forward rate as implied by the covered interest parity theory (CIP)?

Consider two local banks. Bank A has 88 loans​ outstanding, each for​ $1.0 million, that it expects will be repaid today. Each loan has a 7 % probability of​ default, in which case the bank is not repaid anything. The chance of default is independent across all the loans. Bank B has only one loan of $ 88 million​ outstanding, which it also expects will be repaid today. It also has a 7 % probability of not being repaid. Calculate the​ following:

a. The expected overall payoff of each bank.

b. The standard deviation of the overall payoff of each bank.

a. The expected overall payoff of each bank.

b. The standard deviation of the overall payoff of each bank.