3. [#663a] Car physics, part 1.A car has a drag coefficient Ca = 0.30, a frontal area of A = 1.9 m² and a mass 1.2 tonnes. The density of air is 1.2kg.m-3.i) What is the drag force when it is traveling at v = 110 kph in a straight line? Fdrag_ N.Hint: Retain accurate values until the final calculation, but remember significant figures.Enter answer here4. [#663b] Car physics, part 1.A car has a drag coefficient Ca = 0.30, a frontal area of A = 1.9 m² and a mass 1.2 tonnes. The density of air is 1.2kg.m-3.ii) What power (in kilowatts) is required to overcome the drag force at this speed? ParagkW.Hint: Retain accurate values until the final calculation, but remember significant figures.Enter answer here

Given, drag coefficient, Cd = 0.30frontal area, A = 1.9 m2density of air is, ρ = 1.2 kg.m-3speed of…

Answered: A car has a drag coefficient Ca = 0.30,…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter7: Gravity

Section: Chapter Questions

Problem 4PQ

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In your own words, describe the difference between the terms gravitational force and gravitational field.
Imagine that nitrogen and other atmospheric gases were more soluble in water so that the atmosphere of the Earth is entirely absorbed by the oceans. Atmospheric pressure would then be zero, and outer space would start at the planets surface. Would the Earth then have a gravitational field? (a) Yes, and at the surface it would be larger in magnitude than 9.8 N/kg. (b) Yes, and it would be essentially the same as the current value. (c) Yes, and it would be somewhat less than 9.8 N/kg. (d) Yes, and it would be much less than 9.8 N/kg. (e) No, it would not.
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1. A force is given as Ẻ = xy² x + (x²y + y) ŷ. Calculate § F. dỉ along the circumference of a circle of radius 3.
3. [#663a] Car physics, part 1. A car has a drag coefficient C= 0.30, a frontal area of A = 1.9 m² and a mass 1.2 tonnes. The density of air is 1.2 kg.m -3 i) What is the drag force when it is traveling at v = 110 kph in a straight line? Fdrag N. Hint: Retain accurate values until the final calculation, but remember significant figures. Enter answer here 4. [#663b] Car physics, part 1. A car has a drag coefficient Cd = 0.30, a frontal area of A = 1.9 m² and a mass 1.2 tonnes. The density of air is 1.2 kg.m -3 ii) What power (in kilowatts) is required to overcome the drag force at this speed? Pdrag kW. Hint: Retain accurate values until the final calculation, but remember significant figures. Enter answer here
Your starship, the Aimless Wanderer, lands on the mysterious planet Mongo. As chief scientist-engineer, you make the following measurements: A 2.50 kg stone thrown upward from the ground at 11.0 m/s returns to the ground in 5.70s; the circumference of Mongo at the equator is 2.00 x 105 km; and there is no appreciable atmosphere on Mongo. Part A The starship commander, Captain Confusion, asks for the following information: What is the mass of Mongo? Express your answer with the appropriate units. Templates Symbol Undo redo Teset keyboard shortcuts Help Value Units Request Answer Part B If the Aimless Wanderer goes into a circular orbit 40,000 km above the surface of Mongo, how many hours will it take the ship to complete one orbit? Express your answer in hours to three significant figures. Templates Symbol undo redo Peser keyboard shortcuts help t= h Submit Request Answer Provide Feedback m = Submit
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