An ac source of voltage amplitude 10 V delivers electric energy at a rate of 0.80 W when its current output is 2.5 A. What is the phase angle between the emf and the current?

Q: Convert 155 km/hr to m/s Answer: 43 I.

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Q: 987 m/s = = km/hr 4392 km/h = m/s

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Q: Four vectors A, B, C and D are shown in the figure. The sum of these four vectors is a vector having…

A: We are given 4 vectors. We first resolve these vectors along x and y directions. We then add x…

Q: A car is moving at 35.0 mi/h. Express its speed in (a) m/s .

A: The distance an item travels in a unit of time is the definition of speed in physics. In other…

Q: The speed of light is about 3.00 × 108 m/s. Convert this figure to miles per hour. (No Response)…

A: Given data:  Speed of light (c) = 3.00×108 m/s Required: Speed of light in miles per hour

Q: That's not the correct answer! The answer is 45 m

A: P = 1.3 MW v = 9.5 m/sCp = 0.36rho = 1.225 kg/m^3

Q: Use scientific notation to express each of the following quantities with only the base units (no…

A: Unit conversion is the method br which same quantity is convert into different units like…

Q: f (Hz) 50 100 150 (Vind) meas 11.91 22.99 34.17 ● ● slope = Lcalc Lmeas (from slope) = HoNcNsAc ls %…

A: The slope of a graph is a measure of how steeply the graph changes between two points. It is defined…

Q: how did you get a to be 1/5g

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Q: Convert 21 m/s to km/hr.

A: Given data:  21 m/s Required: The value of 21 m/s in km/hr

Q: A marathon runner averages 9.3 mi/h. How long does it take them to run a 26.14-mi marathon in hours?…

A: Required to find the time in hours

Q: The speed of light is about 3.00 ✕ 108 m/s. Convert this figure to miles per hour.

A: The given data is:  Speed of light is: 3×108m/s The objective is to convert this to miles per hour.

Q: A football field is 100. yd long. Convert this distance to Sl units.

A: The objective of the question is to convert the length of a football field from yards to meters,…

Q: 8. A car travels at 40kph for 2 hrs, at 50 kph for 1 hr and at 20 kph for 0.5 hr, find the average…

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Q: An airplane flying horizontally with a speed of 500 km/h at a height of 800 m fires a crate of…

A: we have given  height of the projectile h =800m  initial velocity of airplane  ua = 500 km/h =…

Q: EXOQ Compare the auxillary equations in the cases of the double rod ordented Vertically (figure…

A: Step 1: Auxiliary equation comparision ;(a) Vertical rod In figure 1.2(a) :For the vertical double…

Q: 1. What is the velocity of a car that traveled a total of 65 km east in 2.3 hours

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Q: When you perform the following operations, how many significant figures should your answer have?…

A: 11.13 kg+22.2 g=? 22.2 g=22.2/1000=0.0222 kg

Q: 122 km/hr = mile/hr

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Q: This is the wrong answer. Also it needs 3 significant figures. Still wrong. Need to find area under…

A: From the graph it is clear that it is straight line passing through origin. So, the equation for…

Q: Convert 41.4 m/s to units of km/hour.

A: Given data:  Speed (v) = 41.4 m/s Required: Speed in units of km/hr

Q: Which of the following is not a base unit in 0/6 the decimal system. m kg S N cd

A: A base unit is a fundamental unit that is defined arbitrarily and not by combinations of other…

Q: If M=r x F, what will be the value of (Mr)?

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Q: How many significant figures has the number 1086.035.

A: Question: How many significant figures has the number 1086.035

Q: Compute the combined moment of the two 85-lb forces about (a) point O and (b) point A. The moment is…

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Q: 987 m/s = km/hr 4392 km/h = = m/s

A: Given: Convert the following velocities  v1 = 987 m/s to km/hr v2 = 4392 km/hr to m/s

Q: 6 miles converted to meters

A: Distance = 6 miles To find : convert into meter

Q: 23 m/s to km/hr?

A: Given 23 m/s we have to convert into km/hr as we know 1km=1000m so 1 m=11000km 1hr=60 min=3600 sec…

Q: Compute the combined moment of the two 85-lb forces about (a) point O and (b) point A. The moment is…

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Q: angular acceleration

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Q: (b) The magnitude of the resultant force acting on the bracket as shown in Figure Q1(b) is to be Fr…

A: We have three forces F1, F2 and F3 where F2=200 N, F3=260 N and resultant Fr=500 N making an angle…

Q: QUESTION 6 A crate is sliding on a level surface with coefficient of kinetic friction, uk, while it…

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Q: A, = -4.00 km, A, = -8.00 km. Express your answer in kilometers. Vo AEO ? |A| JÄ = km

A: In component form, a vector A→ can be written as A→=Axi^+Ayj^ Where, the magnitude of the vector,…

Q: 3. Find the value of A? A k 13 ft 7 ft 100 lbs

A: The principle of moments states that for a seesaw to balance, the total torque on one side must be…

Q: 4 m2 = ? ft2 4 ft2 = ? m2

A: 1 m2 = 10.763 ft2. and 1ft2 = 0.0929 m2.

Q: Says 1.62 is wrong

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Q: A yacht is 57 m long. Express this length in feet. ft

A: Required : Length of 57 m long yacht in feet.

Q: In the last step, are we supposed to multiply by 0.5? If so the answer is .65.  Is this correct?

A: The given answer is 1.23m

Q: 3. 1 slug is equivalent to 1 Ib.s^2/ft O a. True O b. False

A: Given : 1 slug is equivalent to 1 lb.s2/ft. Whether above given conversion unit is true or not.