A. With speed of 95km/hr and rate of 2400 vehicles per hour, the average distance between the front-ends of the two neighbouring vehicles is
The distance between the two cars i.e. the back end of one car and the front end of the other neighbouring car is
x= 39.88m - 4.7m = 34.88m
B. Given x = 9.1m
The distance between the front-ends of the two cars is 9.1m + 4.7m = 13.8m
The number of vehicles that can be carried at speed of 95km/hr in one hour is
Part Constants If a ve Expre According to a Scientific American article (May, 1990), current freeways...
Exercise 2.3 Constants Part A You normally drive on the freeway between San Diego and Los Angeles at an average speed of 105 km/h (65 mi/h), and the trip takes 1 h and 50 min, On a Friday afternoon, however, heavy traffic slows you down and you drive the same distance at an average speed of only 69.0 km/h (43 mi/h How much longer does the trip take? Express your answer using three significant figures. min Submit Request Answer Provide...
please answer part B.
incorrect answers : 80.0 and 60.0
Problem 2.59 You are driving eastbound on the interstate at 70 m/You observe that you are approaching a truck in your lane at a relative speed of 10 mi/h . Part A How fast is the truck moving relative to the highway? Express your answer in miles per hour to two significant figures. 60 mi/h Submit My Answers Give Up Correct Part B If the truck were instead traveling at...
5:22 AA session.masteringphysics.com Problem 8.22 Mastering Physics 6 of 8 Constants The tires of a car make 93 revolutions as the car reduces its speed uniformly from 95.0 km/h to 63.0 km/h. The tires have a diameter of 0.88 m. Part A What was the angular acceleration of the tires? Express your answer using two significant figures. a = 1.7 rad/s2 Submit Request Answer Incorrect; Try Again; 9 attempts remaining Part B If the car continues to decelerate at this...
roblem 2.16 Review Part A You jog at 95 km/h for 6.0 km, then you jump into a car and drive an addtional 19 km With whast average speod must you drive your car t your average speed for the entire 25 km is to be 25s km/h? Express your answer using two significant figures. km/h Submit X Incorrect: Try Again; 2 attempts remaining Provide Feedback
Constants Part A A bird is flying due east. Its distance from a tall building is given by (t)-35.0m +(12.7m/s)t -(0.0360m/s')t What is the instantaneous velocity of the bird when t Express your answer with the appropriate units 7.00 s? alueUnits Submit Request Answer Provide Feedback Next > We were unable to transcribe this imagewhat is the instantaneous acceleration at t = 20s? Express your answer using two significant figures Constants The figure (Figure 1) shows the velocity of a...
Constants I Periodic Table The current in a 120 V reading lamp is 2.2 A Part A If the cost of electrical energy is $0.075 per kilowatt-hour, how much does it cost to operate the light for an hour? Express your answer using two significant figures. Vα ΑΣφ dollars Cost = Request Answer Submit Next> Provide Feedback
Constants| Periodic Table A mass is performing simple harmonic motion. You may assume that there are no significant frictional forces in this problem (the motion is undamped). The maximum speed of the mass during the motion is 4.6 m/s. The amplitude of the motion is 23 cm Part C Part A What is the maximum acceleration of the mass during this motion? What is w, the angular frequency of this motion? Express your answer using two significant figures Express your...
Constants A curve of radius 73 mis banked for a design speed of 90 km/h Part A If the coefficient of static friction is 0.30 (wet pavement), at what range of speeds can a car safely make the curve? (Hint: Consider the direction of the friction force when the car goes too slow or too fast.] Express your answers using two significant figures separated by a comma. EVO ALO ? Umin, Vmax= km/h Submit Request Answer < Return to Assignment...
Constants Part A If a curve with a radius of 87 m is properly banked for a car traveling 79 km/h, what must be the coefficient of static friction for a car not to skid when traveling at 103 km/h? Express your answer using two significant figures. Hanin-0.1627 Submit Previous Answers Request Answer Incorrect; Try Again; 3 attempts remaining | Provide Feedback Next >
Constants Part A Ha curve with a radius of 92 m is properly banked for a car traveling 74 km/h, what must be the coefficient of static friction for a car not to skid when traveling at 98 km/h? Express your answer using two significant figures. VOASTRO? Penis Submit Previous Answers Request Answer X Incorrect; Try Again; One attempt remaining Provide Feedback Next >