In the rainy season, the Amazon flows fast and runs deep. In one location, the river is 25 m deep and moves at a speed of 4.5 m/stoward the east. The earth's 50 μT magnetic field is parallel to the ground and directed northward.

If the bottom of the river is at 0 V, what is the potential (magnitude and sign) at the surface?

A 3-phase, 380 V, 50 Hz , 6 pole, Y-connected induction motor has R1 = 0.1 W , X1 = 0.4 W, R2’ = 0.12 W , X2’ = 0.4 W, Xm = 20 W , Pr = 1 kW. The motor is operated at 970 rpm what is the efficiency?

A circuit consists of a large electromagnet that has an inductance of 52.0 H and a resistance of 8.00 ?, a dc 270 V power source, and an open switch - all connected in series.

A) How long after the switch is closed is the current equal to 10.5 A?

B) How long after the switch is closed is the current equal to 31.9 A?

6 The single-phase half-wave ac voltage controller in Figure 11.1a has a resistive load of R = 2.5 Ω and the input voltage is Vs = 208 V (rms), 60 Hz. If the desired output power is Po = 2 kW, calculate (a) the delay angle α and (b) the input PF.

Two resistors have resistances R(smaller) and R(larger), where R(smaller) < R(larger). When the resistors are connected in series to a 12.0-V battery, the current from the battery is 1.43 A. When the resistors are connected in parallel to the battery, the total current from the battery is 9.95 A. Determine the two resistances.

write a c++ program to perform the following operations on stack of Integers (Array Implementation of Stack with maximum size MAX)

(i) Push an Element on to stack

(ii) Pop an Element from stack

(iii) Demonstrate how stack can be used to check Palindrome

(iv) Display the status of stack

(v) Exit

Use list/link list and write in C++

Food ordering system

1. Place Order
2. View the food details
3. Modify food details
4. Delete food details

5. Exit

Order should let the customer to enter the food code, flavor, weight(kg), unit price, qty, customer ID, name, address and contact number. It will also have an order id automatically assigned with a unique ID when new order is added. When view the food details, it should also calculate the unit price * qty as a bill amount. You should also be able to modify all the food details and delete food details.

List and briefly describe the five employer labour relations strategies towards unionization.

List three reasons why union density higher in Canada than in the United States? Do you think that union density in Canada will decline to the level in the United States?

Briefly Explain 400 words for each answer.