Math
4) A tourist walks n km at 4 km/h and then travels 2n km at 36 km/h by bus. Express the total traveling time t(in hours) as a function of n.
Homework Answers
A bus travels 280 km south along a straight path with an average velocity of 88 km/h to the south
A bus travels 280 km south along a straight path with an average velocity of 88 km/h to the south. The bus stops for 24 min, then it travels 210 km south with an average of 75 km/h to the south.a. How long does the total trip last?b. What is the average velocity for the total trip?
Myron Corporation is sponsoring a walking race at its company outing. Leona Jackson and Sam Peterson...
Myron Corporation is sponsoring a walking race at its company outing. Leona Jackson and Sam Peterson love to walk. Leona walks at the rate of 8 miles per hour. Sam walks at the rate of 9 miles per hour. Assume they start walking from the same place and walk in a straight line. Sam starts 34 hours after Leona. Answer the questions that follow. Hint: Distance = Rate × Time. a. How many miles would each have walked? (Do not round...
5-The following function models the rate at which the ozone level in a suburb of a city is changing (parts per million per hour, ppm/h) t hours after 7:00 A.M 0.24-0.3t R(t)- 36+16t -t2 Express the o...
5-The following function models the rate at which the ozone level in a suburb of a city is changing (parts per million per hour, ppm/h) t hours after 7:00 A.M 0.24-0.3t R(t)- 36+16t -t2 Express the ozone level as a function of time if the ozone level is 4 ppm at 7:00 A.M
5-The following function models the rate at which the ozone level in a suburb of a city is changing (parts per million per hour, ppm/h) t hours...
Question 4 /1 point) A bear is walking through the woods. It walks 8.04 km (N),...
Question 4 /1 point) A bear is walking through the woods. It walks 8.04 km (N), then 7.05 km/W), then 1.54 km (5). This trip is completed in a time of 5.64 hours. The mass of the bear is 175 kg What is the magnitude of the bear's average velocity in km/h and the direction? Make one selection for the magnitude and one selection for the direction South East 2.40 km/h 2.95 km/h North West 1.70 km/h North East Question...
A bus makes a trip according to the position-time graph shown in the drawing. What is...
A bus makes a trip according to the position-time graph shown in the drawing. What is the average velocity (magnitude and direction) of the bus during each of the segments A, B, and C? Express your answers in km/h. The scale for the time axis is 3.5 h per increment, and scale for the velocity axis is 500 km per increment. (Indicate direction by the sign of the velocity.) segment A km/h segment B km/h segment C km/h
The speed of light, by the u symbol c, has a value, to two significant figures,...
The speed of light, by the u symbol c, has a value, to two significant figures, of 3.0 x 108 m/s. (a) How long does it take for light to travel from the Sun to Earth, a distance of 1.5 x 10!1 m? (b) How Jong does it take light to travel from the moon to Earth, a distance of 3.8 x 108 m? 1.0 In free light travels in a straight line at constant speed, c g along a...
A car travels in a straight line a distance of 8.4 km at an average speed...
A car travels in a straight line a distance of 8.4 km at an average speed of 70 km / h before stopping due to lack of fuel. Following this stop, the driver of this car walks for 30 minutes over a distance of 2.0 km to get to the nearest gas station. at. What is the total distance the driver has traveled between the beginning of the journey of her car and until he arrives at the gas station?...
A Coast Guard cutter detects an Coast Guard wishes to send a speedboat to intercept and...
A Coast Guard cutter detects an Coast Guard wishes to send a speedboat to intercept and investigate the vessel. unidentified ship at a distance of 24.0 km in the direction 1 5.0 east of north. The ship is traveling at 28.0 kmvh on a course at 40.0m east of north. The (a) If the speedboat travels at 480 km/h, in what direction should it hesd? Express the direction as a compass bearing with respect to due north. east of north...
A car traveling at 35.0 km/h speeds up to 45.0 km/h in a time of 5.60...
A car traveling at 35.0 km/h speeds up to 45.0 km/h in a time of 5.60 s (interval A). The same car later speeds up from 65.0 km/h to 75.0 km/h in a time of 5.60 s (interval B). 1) Calculate the magnitude of the constant acceleration for the first interval. (Express your answer to three significant figures.)2) Calculate the magnitude of the constant acceleration for the second interval. (Express your answer to three significant figures.)3) Determine the distance traveled...
A woman walks 2.80 km south and then 2.50 km east, all in 2.60 hours. (a)...
A woman walks 2.80 km south and then 2.50 km east, all in 2.60 hours. (a) What is the magnitude (in km) and direction (in degrees south of east) of hlat displacement during the given time? magnitude km direction O south of east (b) What is the magnitude (in km/h) and direction (in degrees south of east) of her average velocity during the given time? magnitude km/h direction south of east (c) What was her average speed (in km/h) during...
5-The following function models the rate at which the ozone level in a suburb of a city is changing (parts per million per hour, ppm/h) t hours after 7:00 A.M 0.24-0.3t R(t)- 36+16t -t2 Express the ozone level as a function of time if the ozone level is 4 ppm at 7:00 A.M
5-The following function models the rate at which the ozone level in a suburb of a city is changing (parts per million per hour, ppm/h) t hours...
Question 4 /1 point) A bear is walking through the woods. It walks 8.04 km (N), then 7.05 km/W), then 1.54 km (5). This trip is completed in a time of 5.64 hours. The mass of the bear is 175 kg What is the magnitude of the bear's average velocity in km/h and the direction? Make one selection for the magnitude and one selection for the direction South East 2.40 km/h 2.95 km/h North West 1.70 km/h North East Question...
A bus makes a trip according to the position-time graph shown in the drawing. What is the average velocity (magnitude and direction) of the bus during each of the segments A, B, and C? Express your answers in km/h. The scale for the time axis is 3.5 h per increment, and scale for the velocity axis is 500 km per increment. (Indicate direction by the sign of the velocity.) segment A km/h segment B km/h segment C km/h
The speed of light, by the u symbol c, has a value, to two significant figures, of 3.0 x 108 m/s. (a) How long does it take for light to travel from the Sun to Earth, a distance of 1.5 x 10!1 m? (b) How Jong does it take light to travel from the moon to Earth, a distance of 3.8 x 108 m? 1.0 In free light travels in a straight line at constant speed, c g along a...
A Coast Guard cutter detects an Coast Guard wishes to send a speedboat to intercept and investigate the vessel. unidentified ship at a distance of 24.0 km in the direction 1 5.0 east of north. The ship is traveling at 28.0 kmvh on a course at 40.0m east of north. The (a) If the speedboat travels at 480 km/h, in what direction should it hesd? Express the direction as a compass bearing with respect to due north. east of north...
A woman walks 2.80 km south and then 2.50 km east, all in 2.60 hours. (a) What is the magnitude (in km) and direction (in degrees south of east) of hlat displacement during the given time? magnitude km direction O south of east (b) What is the magnitude (in km/h) and direction (in degrees south of east) of her average velocity during the given time? magnitude km/h direction south of east (c) What was her average speed (in km/h) during...
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