Some hummingbirds beat their wings more than 50 times per second. A scientist is measuring the time it takes for ahummingbird to beat its wings once. Which fundamental unit should the scientist use to describe the measurement? Whichfactor of 10 is the scientist likely to use to describe the motion precisely? Identify the metric prefix that corresponds to thisfactor of 10.

Q: Which of the following equations are dimensiona consistent?

A: Given:- A.  v =at B. v = 12at2C. t = avD. v2= 2ax  v is the speed, t is time, and a is acceleration.…

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Q: Bill runs at a steady pace of 5.00 m/s. How long will it take Bill to run 1.00 mile? (N.B. 1 mile…

A:

Q: A car has a speed of 100 km/hour and an acceleration of 9100 km/hour2 . a) Calculate its speed in…

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Q: 5.00 cars pass through an intersection each second. How many cars pass the intersection in 1.00…

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Q: Part II. Significant Figures The significant figures in a number are all figures that are obtained…

A:

Q: kilometers

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Q: 8. The speed of sound is measured to be 342 m/s on a certain day. What is this in km/h?

A:

Q: Mr. Alexander wants to know the height of a cliff he hiked up. He drops a rock down and it takes 5.5…

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Q: Using Excel to make a plot of the Position vs Time given in the following table. The dependent…

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Q: A runner travels 50 m over a duration of 13.3 s. She took 31 steps over the 50 m. What was her step…

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Q: By measurement you determine that sound waves are spreading out equally in all directions from a…

A: Intensity, I=260 W/m2  Distance from sourc, r=43.0 cm Time, t=5.5 ms   To determine energy emitted…

Q: Suppose the volume V of some object happens to depend on time t according to the equation V(t)= At3…

A: we know that the quantities having same dimension can only be added or substracted.

Q: Statement translation. The distance s an object falls in time t equals the product of 16 and the…

A: Given S=distance the object falls t= time interval

Q: can you help with question B.

A: Given information: Here, vi and vf are the initial and the final speed of the impala respectively…

Q: What is the value of m? Express your answer to two significant figures

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Q: The SI unit of force is the newton, derived from the base units by using the definition of force, F…

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A:

Q: Which of the following equations has units of length? Take [x] = L (length), [m] = kg (mass), [t] =…

A: Since N = kg.m/s^2, So Unit of Ft^2 = N.s^2 = (kg.m/s^2)*s^2 = kg.m Unit of mx = kg.m Unit of Fx^2 =…

Q: If B is added to A, the result is 8.81 +3.0ĵ. If B is subtracted from A, the result is -4.61 +5.6).…

A:

Q: In the following calculations, be sure to express the answer in standard scientific notation with…

A: The following subtraction needs to be done:Let A=3.78×107 g- 4.701×105 gFirst we need to make the…

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A: Write the expression for Newton’s law of universal gravitation. F=GMmr2G=Fr2Mm

Q: Tom Cogwagee Longboat, of the Six Nations of the Grand River, is one of Ontario's best known…

A: Given: Distance=39.2 kmTime=2hours, 24min, 24sec

Q: Suppose a machine is invented to measure the amount of knowledge in a student’s head in units called…

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Q: Part II. Significant Figures The significant figures in a number are all figures that are obtained…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.