A motorist goes for a drive, keeping the reading on the speedometer at a constant value of 40km/h. The speedometer is assumes to be accurate to +/- 2km/h. At the end of the day he wants to know how far he has travelled, but unfortunately, he forgot to look at the distance indicator when he set out. He thinks that he drove for four hours, give or take a quartee of an hour. Estimate how far he travelled and assign an error to your result.

Q: An object moves along the x axis according to the equation  x = 2.55t2 − 2.00t + 3.00,  where x is…

A: An object moves along the x-axis according to the equation  x = 2.55t2 − 2.00t + 3.00 ...(1)…

Q: A diver running 1.6 m/s dives out horizontally from the edge of a vertical cliff and 2.6 s later…

A: According to the Newton's laws of motion , the horizontal distance travelled is calculated by using…

Q: In addition to 1 m = 39.37 in., the following exact conversion equivalents are given: 1 mile = 5280…

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Q: Question 2: Answer the following questions based on the graph given below Length vs Time^2 5 4.5 4…

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Q: Perform the following unit conversions: a) 65 miles per hour to meters per second (hint: 1 mile =…

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Q: In SI units, speeds are measured in meters per second (m/s). But, depending on where you live,…

A: 1m =10-3 km1 s = 13600h1 m =6.21×10-4 mi

Q: Hardy, an avid TikToker, decided to look at his wristwatch to tell his friend dolphins the current…

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Q: How many significant figures does  1.362+25.2 have ? (a) 2.             (b) 3.              (c) 4.…

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Q: The result of (20.20 + 0.010)(11.20 – 6.200) is in Newtons (N). If 20.20 is in meters (m), what are…

A: Given: unit of 20.20 is meter and unit of (20.20+0.010)*(11.20-6.200) is N

Q: How many times does a human heart beat during a person’s lifetime? How many gallons of blood does it…

A: Number of beats per minute, n = 84 blood pump in each beat = 50 cm3

Q: If you drive 113 miles in 2 hours and 15 minutes (2.25 hours) then what was the magnitude of your…

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Q: Gravel is being dumped from a conveyor belt at a rate of 50 cubic feet per minute. It forms a pile…

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Q: Statement A: (2.567 km + 3.146 km), to two significant figures. Statement B: (2.567 km, to two…

A: Consider the statement A: Thus, the result of two significant figures will be:

Q: What is the order of magnitude difference between something that operates in nanoseconds and…

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Q: Can you approximate the height of one of the buildings on your campus, or in your neighborhood? Let…

A: Height of a building

Q: In a situation in which data are known to three significant digits, we write 6.379 m = 6.38 m and…

A: Logarithmic scale is used to find the order of magnitude.

Q: Harry, an avid TikToker, decided to look at his wristwatch to tell his friend dolphins the current…

A: Given data: Length of the hour hand,lh=5.10 cm Length of the minute hand, lm=10.50 cm To…

Q: What is the magnitude of the displacement of a car that travels 8.2 mi east and then 4.3 mi north?…

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Q: Use the data collected to find an equation for the path of the ball. Remember, use t for the input…

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Q: Give an order-of-magnitude estimate for the length in metersof the following: (a) a person; (b) a…

A: The average height of a typical person is around 1.80 m.   Thus, the order of magnitude in meters to…

Q: Which of the following values has the fewest number of significant figures? 0.100 O 1.00 O 10.0 O…

A: The properties of significant figure are:- -All the non-zero digits are significant. - All the zeros…

Q: A teenager walks 191 meters north to their friends house and gets therelin 5 min. They forgot their…

A: suppose total distance when he returns to home is X. We have given, He travels 191m in 5 min. let us…

Q: The correct conversion of speed limit of 65 mi/h in terms of SI unit is 1.609 km) (Given 1 mile= Oa…

A: Given, Speed, v=65 mi/h

Q: 3. Write down the following numbers in scientific notation accurate to three significant figures:…

A: Scientific notation is a process by which numbers are represented in terms of decimal less than 10…

Q: How many significant figures does each of the following numbers have?a. 0.621                   b.…

A: Significant figures

Q: In the given equation, v = At² + Bx, 'v' is the velocity, 'x'is displacement, and 't'is the time.…

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Q: An Airplane travels at 951 km/h. how long does it take to travel 1.00 km? (SI units, always) (Make…

A: Given Speed of Airplane (V) = 951 Km/h =264.167 m/s Distance =1 Km = 1000 m

Q: QUESTION 1.4 Repeat the conversion, using the relationship 1.00 m/s = 2.24 mi/h. Why is the answer…

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Q: The formula d =1.35· h, models the distance in miles from the horizon where h is the distance in…

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Q: The motion of a particle is given by a = 6v1/3, where a is in feet per sec² and v in feet per sec.…

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Q: The Great Pyramid of Giza is 139 m tall, with a slope of 51.8°. If you were to climb the pyramid…

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Q: Question 3 3 pts A spacecraft accelerates from rest: a = bt = 1t until a = 10, after which it…

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Q: You are planning a trip to San Diego from Cypress College. If it took you a time of t = 1.5 hr to…

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Q: The earth formed 4.57 x 109 years ago. What is this time in seconds?A. 1.67 x 1012 s            B.…

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Q: The Speed limit on a highway in Lower Slovakia was given as 120,000 furlongs per fortnight. How many…

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Q: A girl delivering newspapers covers her route by traveling 5.00 blocks west, 3.00 blocks north, and…

A: Given values:Distance travelled due west, OA = 5 BlocksDistance travelled due north, AB =3…

Q: Hardy, an avid JikTeker decided to look at his wristwatch to tell his friend dolphins the current…

A: Given:Length of hour hand, h = 6.20 cmlength of minute hand, m = 9.50 cmassumption: hour hand moves…

Q: If the distance dd (in meters) traveled by an object in time tt (in seconds) is given by the formula…

A: Given data:  Distance d in meters d = A + Bt2  Time (t) in seconds  Required: The SI units of A and…

Q: How many significant figures does each of the following numbers have?a. 6.21                 b.…

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Q: A map suggests that Atlanta is 730 miles in a direction of 5.00° north of east from Dallas. The same…

A: Given data: The displacement from position D to A is d1=730 miles. The displacement from position A…

Q: QUESTION 5 If a=b/c, a#0 which math expressions are correct for these a, b, and c? c=ab b=cla b=a/c…

A: Here given that , a= b/c  So , b = ac  And c= b/a

Q: Perform the following unit conversions: a) 65 miles per hour to meters per second (hint: 1 mile =…

A: From unit conversion, the required values are: a)

Q: To get to his office from home, Greg walks 5 blocks north and then 2 blocks east. After work he…

A: Now from the given block diagram having 1 block = 660 ft

Q: Hardy, an avid TikToker, decided to look at his wristwatch to tell his friend dolphins the current…

A:

Q: A hiker walks 35 km east and then 20km south in a day. Find the hikers resultant displacement

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Q: In SI units, speeds are measured in meters per second (m/s). But, depending on where you live,…

A: The kilometer, hour, and a mile is 1 km=1000 m1 h = 3600 s1 mi = 1609.34 m

Scalars and Vectors

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