V1=1000 m/s, V2=1800 m/s, V3= 800 m/s, V4= 1400 m/s

angle1= 35 deg, angle2= 60 deg, angle3= 130 deg, angle4= 340 deg.

1.) Find the sum V in cartesian and polar coordinates of V1=1000 m/s, V2=1800 m/s 2.) Find the difference of V in polar and cartesian coordinates for V3= 800 m/s and V4= 1400 m/s. The angles are angle1= 35 deg, angle2= 60 deg, angle3= 130 deg, angle4= 340 deg.

I need to write about GDP and  COVID-19

of various letter forms of recovery described, what does research suggest we are currently experiencing? Include one citation to support your answer. Do you agree with this consensus from economists? Why?

For More information ( the letterforms it a V, an L, or a W) (alphabet: “U” shaped, “V” shaped, etc.)

(Chapter 7 - Measuring Domestic Output and National Income, Chapter 8 - Economic Growth)

I need to at least 180 words please no handwriting, please.

also, could you write the source.

2) Imagine an infinitely long hollow metal pipe with a rectangular cross section. The four sides are placed at x = −a and x = a, and at y = −b and y = b. The two sides on the x-axis (and parallel to the y-z plane) are held at V = 0, the two sides on the y-axis (and parallel to the x-z plane) are held at a constant positive potential V = V0. Imagine that each infinite plate is separated from each adjacent plate by a thin insulation. Find the potential inside the wire.(Please be as detailed as possible with the derivations and steps associated with solving the problem, (please and thank you!!).

Suppose the proportion X of surface area in a randomly selected quadrat that is covered by a certain plant has a standard beta distribution with α = 5 and β = 3.

(a) Compute E(X) and V(X). (Round your answers to four decimal places.)

E(X) =

V(X) =

b) Compute P(X ≤ 0.6). (Round your answer to four decimal places.)

(c) Compute P(0.6 ≤ X ≤ 0.8). (Round your answer to four decimal places.)

(d) What is the expected proportion of the sampling region not covered by the plant? (Round your answer to four decimal places.)

A car travels at 105 km/h on a level road in the positive direction of an x axis. Each tire has a diameter of 63.6 cm. Relative to a woman riding in the car and in unit-vector notation, what are the velocity V at the (a) center, (b) top, and (c) bottom of the tire and the magnitude a of the acceleration at the (d) center, (e) top, and (f) bottom of each tire? Relative to a hitchhiker sitting next to the road and in unit-vector notation, what are the velocity V at the (g) center, (h) top, and (i)bottom of the tire and the magnitude a of the acceleration at the (j) center, (k) top, and (l) bottom of each tire?

with a velocity v = 4.6i m/s. It the strikes the six ball, which has an identical mass and is initially at rest. After the collision the eight ball is deflected by an angle of θ = 26° and the six ball is deflected by an angle of Φ = 35°, as shown in the figure.

Part (a) Write an expression for the magnitude of six ball's velocity, in terms of the angles given in the problem and the magnitude of the eight ball's initial velocity, v.

Part (b) What is the magnitude of the velocity, in meters per second, of the six ball?

Part (c) What is the magnitude of the velocity of the eight ball, in meters per second, after the collision?

Complete the table below to describe each cost behavior as either fixed (F) or variable (V) and the type of cost as either product cost (product) or period cost (period). Cost Behavior Type of Cost F for fixed or Product or V for variable Period (1) Depreciation on manufacturing equipment Blank 1 Blank 2 (2) Wages paid to employee involved in production Blank 3 Blank 4 (3) Salary paid to administrative assistant for company president Blank 5 Blank 6 (4) Electricity used in the production facility Blank 7 Blank 8

The following test data apply to a 110 kVA, 2300 V three-phase four-pole 60 Hz induction motor.

No load test at rated voltage and frequency: Load current = 8.1 A, Three-phase power = 3025 W

Blocked-rotor test at rated current and 15 Hz: Line voltage = 268 V, Three-phase power = 10.2 kW

Stator resistance between line terminals = 2.34 Ω.

Compute the stator current and power factor, kW output, and efficiency when this motor is operating at rated voltage and frequency with a slip of 2.8 percent.

A 1.5 KVA, 220/120 V, 60Hz real step-down transformer has the following parameters that are all referred to the primary-side: the total copper loss R = 2.4 Ω, the core loss Rc = 2.4 KΩ, the magnetization reactance Xm = 2 KΩ, and all the leakages are negligible. Suppose that the output port in the secondary-side is operated at full-load and rated voltage with the unity power factor p.f. = 1.

(a) Find the power factor p.f.1 at the primary-side input port;

(b) What is the voltage regulation (V R)?

(c) Determine the power efficiency η .

Two isolated, concentric, conducting spherical shells have radii R1 = 0.470 m and R2 = 1.00 m, uniform charges q1 = +1.50 μC and q2 = +2.00 μC, and negligible thicknesses. What is the magnitude of the electric field E at radial distance (a) r = 4.70 m, (b) r = 0.610 m, and (c) r = 0.220 m? With V = 0 at infinity, what is V at (d) r = 4.70 m, (e) r = 1.00 m, (f) r = 0.610 m, (g) r = 0.470 m, (h) r = 0.220 m, and (i) r = 0?