For a short time, the speed v of a car, in m / s, is given by v = at2 + bt3, where t is the time in seconds. The units of a and b are, respectively,   a) m/s^2; m/s^3 b) m/s^4; m/s^5 c) s^3/m; s^4/m d) m.s^2; m.s^4 e) m/s^3; m/s^4

Q: Omar travelled 34 km, North and then 15 km, South. His resultant displacement is O a. 19 km, South O…

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Q: Complete the following table 2 (s*) h/t (m/s?) Mean h/t (m/s?) g (m/s²) height h (cm) Time t (s)…

A: See below

Q: The following conversion equivalents are given: 1m = 100 cm 1 in = 2.54 cm 1 ft = 12 in A bin has a…

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Q: You want to convert the speed km/h into m/s for a physics problem. Which of the following could act…

A: Given:  Km/h into m/s

Q: 1. If r = ti − t²j + (t− 1) k and s = 2t²i + 6tk evaluate www -2 r. sdt a. 0 -2 b. Srx sdt 0

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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.…

Q: 1. From the figure shown below, (a) express all four vectors A, B,C,& D in unit vector notation (b)…

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Q: What is the speed of a car going v=1.000 mph in SI units? Notice that you will need to change miles…

A: As per the question, the speed of the car is v mph, we have to convert the speed of the car v in SI…

Q: With the height of 5.5 feet express it in English system and SI system.

A: Given: Height is 5.5 feet.1 foot= 12 inches1 yard=3feet1 mile=5,280 feet Convert 5.5 feet to English…

Q: 1. Force acts upon an object while it is moving, work is said to be done upon the object by that…

A: True if object is displaced because of force acting on it than work is said to be done on object by…

Q: A bike 1.27km, after a trip consisting 3 segments after a trip consisting x1,x2 and x3 along in the…

A: given,x1+x2=3.79kmx2+x3=-7.82kmx1+x2+x3=1.27km

Q: Determine the values of I,12, and I3 that satisfy the following three equations. -1.20/, + 12 + l3 =…

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Q: Cyclists in the United Kingdom reach speeds of 34.0 miles per hour (mi/h) on flat sections of the…

A: Given that-V= 34 miles/ hour1 mile= 1.60934 kmthen, v= 34×1.60934 km=54.7 km/hr

Q: 21. Mr. Alexander wants to know the height of a cliff he hiked up. He drops a rock from the top of…

A: Assume the height of the cliff is denoted by h. The initial velocity of the rock is u = 0 m/s.…

Q: Quinton can run 12 miles per hour. How many feet can he run per second?

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Q: Suppose your hair grows at the rate 1/31 in. per day. Find the rate at which it grows in nanometers…

A: Given data:  Hair growth rate = 1/31 in. per day Required: Hair growth rate in nm/s

Q: a) C = Ā B b) Ĉ = Ā B c) C = Ã × B

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

Q: Convert the folowing to Si units: 120 km/h ? Value Units

A: Given Speed is v= 120 km/h 1 km= 1000 m 1 h =3600 s

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A: The dimension of a physical quantity is demoted with square brackets . The length has a dimension of…

Q: 1. What is the unit for a velocity in the International System (SI) of a) 1 kg m2 b) 1m/s c) 1m/s?…

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Q: For a short time, the speed v of a car, in m / s, is given by v at“ + bt°, where t is the time in…

A: e is the right option

Q: A marathon runner averages 9.0 mi/h. How long does it take them to run a 26.76-mi marathon in hours?…

A: We have given average speed of runner which is 9 mi/hTotal distance cover is 26.76 miWe have to find…

Q: The following lengths are given in meters. Use metric prefixes to rewrite them so the numerical…

A: Given that : a. 1.8 x10^6m  b. 0.068 m  c.5.7x10^-10m  d.3.8 x10^4m

Q: Direction: Solve the problem. X2- 5000 m X- Om t- Os ts- 5s ta- 10s X =? A x = R1) = t -t +2 a =? B…

A: (a) Average velocity of particle A and particle B in m/s in 10 s trip. (b) Displacement x of the…

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…

A: Distance (d) = 50 m Time (t) = 13.3 s Total  number of steps to cover 50 m               distance is…

Q: water balloon is catapulted into the air so that its height h, in meters, after t seconds is =49+2…

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Q: A marathon runner averages 9.4 mi/h. How long does it take them to run a 26.00-mi marathon in hours?…

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Q: 58. In the SI system the unit of force, the Newton, is a derived unit. True False 59. The meter,…

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Q: A car starts driving at noon (t = 0) and drives at exactly 50 miles per hour until 4pm (t = 4). (a)…

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Q: Which one of the following is not a derived unit?    (a) kg/m3   (b) km/hr   (c) m/s2…

A: Derived units are the units which are the product of either one or more than one basic unit or they…

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: What is the interpretation and conclusion of this graph? Can you interpret this?

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Q: What are the units (in the SI system) of a physical quantity whose dimensions are L²M'T-3? kg/s³ |…

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Q: speed

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A: Dear student The elecrric field is a vector quantity. Therefore it must be added according to vector…

Q: The number of significant figures of the number 6.92 E-3 mm, is: A)2 B)4 C)1 D)3

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Q: Consider the equation s = s0 + v0 t + a0 t2 /2 + j0 t3 /6 + S0 t4 /24 + ct5 /120, where s is a…

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Q: QUESTION 1 Supply all missing information with the correct numerical values. Do not include the…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: XO1 equals: A) X B) X C) 0 D) 1 E) None of the given answers O The correct answer is C The correct…

A: Given, X⊕1 Since this is know for XOR gate, If A and B are inputs, then the output of XOR gate will…

Q: dx Given that the integral y²+x² a b с d I 4y Л 8y I 2y³ I == 2y the value of dx (y² + x²)² is

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Q: 1- The SI unit of time is min. O true

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Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.