Which numbers are exact (and therefore have an unlimited number of significant figures)?

Q: 2. The figure shows a pin-supported member, ABD, in static equilibrium. The mass of the member is…

A: The objective of this question is to calculate the support reactions at points B and D, and to…

Q: Those answers were incorrect

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Q: Starting from one oasis, a camel walks 45 km in a direction 30° south of west and then walks 20 km…

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Q: what

A: mass of substance = m = 195 g = 0.195 kg removed energy = Q = - 4200 j ( -Ve is loss of energy )…

Q: Starting from an airport, an airplane flies 190 miles north and then 210 miles east. How far, in…

A: Given data:  A airplane flies 190 miles , towards North Then 210 miles, towards East Required: The…

Q: Starting from one oasis, a camel walks 25 km in a direction 30° south west and then walks 30 km…

A: Here distance betwen two oasis is to be found. So magnitude of net displacement is to be found.

Q: says 3.55 is wrong

A: Here,  Area under the Force and time curve is 15 Ns . (area calculation from above solution is…

Q: An airplane flies 200 km due west from city A to city B and then 355 km in the direction of 30.5°…

A: Let us draw the diagram of the situation. AB = 200 km BC = 355 km

Q: Two trains leave the station at the same time, one heading west and the other east. The westbound…

A: West velocity, w = 100 miles per hour East velocity, e = 80 miles per hour Separation, r = 468 miles

Q: The cruising speed of a certain airplane is approximately Mach 0.67, meaning 0.67 times the speed of…

A: Given data: Cruising speed of airplane, va=Mach 0.67 Speed of sound, vs=295 m/s Our question is to…

Q: A red cross helicopter takes off from headquarters and flies 75 km at 30 degrees south of west.…

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Q: give the given

A: (a)  Given -  Weight of suspended pumpkin  = W  Angle subtended by chord A = 30°  Angle subtended by…

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: how to answer question (b)

A: (a) Draw the free-body diagram of the cart.

Q: A man weighs 220 pounds. His son weighs 50,000 grams. What is their weight difference in kilograms?

A: Given  Weight of man W1=220 pound Weight of son W2=50000gram

Q: can you give a conclusion about your final answer or give a description about your solution

A: The amount of energy that is stored in a capacitor's electric field is measured by its capacitance.…

Q: A distance of 2495 km was travelled by air plane at two speeds. From the start to a certaian time of…

A: Solution- Let plane travel distance d1 with speed v1 in time t1.(start to a certain time of flight)…

Q: How many degrees does the minute hand of a clock turn through in 19 minutes

A: Asked: Degrees minute hand turn in 19 minutes.

Q: If you travel 5 mi east and then 3 mi south, how far are you from your starting point?

A:

Q: An air traffic controller notices two signals from two planes on the radar monitor. One plane is at…

A: Solution: Given that Plane 1  h= 1104 m d = 11.6 km angle = 30.6 deg south of west. Plane 2 h = 5420…

Q: not understanding the calculation

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Q: what's the answer of letter D

A:

Q: A ship is 2.2° off course. If the ship is traveling at 28.0 miles per hour, how far off course will…

A: Given value--- ship is 2.2° off course. If the ship is traveling at 28.0 miles per hour. We have…

Q: As 3 4 2.

A:

Q: 2nd question solution please

A: According to charge conservation, total charge is constant for an isolated system

Q: Can this equation be used to find the same solution to the question?

A: Yes , this equation will be used to solve the given problem.  For your simplicity---  Mass , m = 1.3…

Q: Why was the mass multiplied to 10?

A: Solution: Given Why was the mass multiplied to 10?

Q: Each morning, George goes for a walk. He begins walking slowly at a constant speed away from his…

A: Phases of the George’s walk: 1. Walks slowly at constant speed away from his house. 2. Then he slows…

Q: A boy was dropped, from a plane moving 100kph horizontally. If the height of the plane from the…

A:

Q: Convert 10 miles per second to miles per hour

A: Given data: 10 miles per second Required: The value of 10 mi/s in miles per hour

Q: A ship sails 400 miles due east. It then sails north 45 degrees West for 200 miles. Where is the…

A: According to question we need to find--- Where is the ship located, distance and angle?

Q: Johnson drove east for 3 seconds with a rate of 5 meters per second. He then took a quick turn to…

A: Draw the motion diagram of the Johnson.

Q: A plane is 34 miles north 80 miles east of an airport. what bearing should the pilot fly directly to…

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Q: You start off on a hike and walk 25km in a direction 30 degrees South of West followed by 30km to…

A: In this question we have to find the direction the person moves, it is an angle that we are looking…

Q: Please resolve this since the answer is not in the choices

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Q: An airplane flies 200 km due west from city A to city B and then 300 km in the direction of 30.0°…

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Q: The angle between was counted as incorrect,

A: Calculate the angle between F1 and F2. tanθ=F2F1tanθ=−16.8 N−10.0 Nθ=59.237° (countrclockwise from…