# Rain is falling steadily but there is no wind. You are in an automobile that moves on a straight, flat highway at a constant speed of 80 km/hr. You see from the drops on the side window that the rain

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1. ## Physics

Rain is falling steadily but there is no wind. You are in an automobile that moves on a straight, flat highway at a constant speed of 80 km/hr. You see from the drops on the side window that the rain is falling at an angle of 58° measured from vertical
2. ## physics

From inside your apartment, you watch rain fall straight down at a constant speed of 9 m/s. Your friend L calls you as she is driving toawards the west at a constant of 90 km/hr. What with what velocity does L see the rain fall as she looks out her
3. ## science

a person standing on a road has to hold his umbrella at 60 degree vertical to keep the rain away he throws the umbrella and starts running at 20 m/s he finds that rain drops are falling in him vertically. find the speed of the rain drops with respect to
4. ## mechanics (plz help..)

A man walking on straight path at15km/h finds that the rain is falling at an angle of 45degree to the vertical.As the man increases his speed to 20km/h,he finds the rain now falling at 30degree with the vertical. What is the true velocity of the rain.
5. ## Physics

Rain drops hitting the side window of a car in motion often leave diagonal streaks if there is no wind. Why?
6. ## physics

A man running horizontal road with velocity 8 km/hr. Find the rain falling vertically downward direction. When he increases speed to 12 km/hr he find rain drops are falling at an angle 30' with downward vertically. What will be the velocity of rain?
7. ## Science

For million of years, wind and rain have worn down the earth. The land is not totally level now because ____. a. other forces keep building up the land b. wind and rain cannot erode solid rock c. for most of those years, wind and rain were scarce d. wind
8. ## Science-Physics

A car is moving at a constant 19.3m/s, and rain is falling at 8.9 m/s straight down. What angle does the rain make with respect to the horizontally observed by the driver?
9. ## physics

A girl riding a bicycle with a speed of 5m/s towards northdirection , observes rain falling vertically down. If she increases her speed to 10m/s , rain appears to meet her at 45degree tp the vertical .what is the speed of rain ?
10. ## physics

A passenger on a stopped bus notices that rain is falling vertically just outside the window. When the bus moves with constant velocity, the passenger observes that the falling raindrops are now making an angle of 18 with respect to the vertical. What is
11. ## physics

A car travels due east with a speed of 35.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 70.0° with the vertical. Find the velocity of the rain
12. ## physics

A car travels due east with a speed of 35.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 70.0° with the vertical. Find the velocity of the rain
13. ## Physics

A car travels due east with a speed of 40.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 54.0° with the vertical. Find the velocity of the rain
14. ## Physics

a) Rain drops hitting the side window of a car in motion often leave diagonal streaks if there is no wind. Why? b) For a certain projectile, the horizontal range is twice in magnitude of the maximum height attained by it. Find its angle of projection.
15. ## physics

7) The train goes by speed 12 m/s on a horizontal track. Rain drops are falling vertically by speed 9 m/s. What is the velocity of the drops falling onthe train windows?
16. ## physics

A car travels due east with a speed of 35.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 40.0° with the vertical. Find the velocity of the rain
17. ## Physics Honors

A car travels due east with a speed of 60.0 km/h. Rain is falling vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 45.0° with the vertical. Find the velocity of the rain with respect to the car
18. ## Math

A car travels due east with a speed of 42.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 70.0° with the vertical. Find the velocity of the rain
19. ## Physics

A car is driving along at 16 m/s, and the rain is falling at 6 m/s straight down. What angle θ (in degrees) does the rain make with respect to the horizontal as observed by the driver?
20. ## scince

During a rain storm, rain comes straight down with velocity Vi =-15 m/s and hits the roof of a car perpendicularly. The mass of the rain per second that strikes the roof is 0.060 kg every second. Assuming that the rain comes to rest upon strikingthe car (
21. ## physical science

During a rain storm, rain comes straight down with a velocity -15 m/s and hits the roof of a car perpendicularly. The mass of the rain per second that strikes the roof is .060 kg every second. Assuming that the rain cones to rest upon stiking the car (Vf
22. ## Sociology

The tropical rain forest is the most diverse ecosystem in the world. The extinction rates of organisms are on the rise because A. rain forests receive too much rain B. human are destroying the rain forests C. rain forests are not receiving enough rain D.
23. ## physics

a bike is moving with a speed of 12m/s in west direction and rain is falling with a speed of 35m/s then at what angle an umbrella must be placed so that rain does not fall on person
24. ## English

Hello. I will be very grateful for some help. 1) Do you think it is possible to say: "Heavy rain started / began", and if yes, is it "heavy rain" or "a heavy rain"? 2) Is it possible to say: "Rain started falling", and if yes, is it "rain" or "the rain"?
25. ## Physics

Rain is falling vertically down on a car moving at 11 m/s. Tracks made by the raindrops on the side window of the car are inclined 55 degrees with the vertical. Find the speed of the raindrop relative to the ground.
26. ## Physics

Rain is falling vertically down on a car moving at 11 m/s. Tracks made by the raindrops on the side window of the car are inclined at 55 degrees with the vertical. Find the speed of the raindrop relative to the ground.
27. ## Physics

Rain is falling vertically down on a car moving at 11 m/s. Tracks made by the raindrops on the side window of the car are inclined at 55 degrees with the vertical. Find the speed of the raindrop relative to the ground.
28. ## Maths / Physics

A car is moving along a straight horizontal road at 82 km/h and rain is falling vertically downwards at 25 km/h. Find the velocity of the rain relative to the driver of the car.
29. ## Physics

An open train car moves with speed 11.3 m/s on a flat frictionless railroad track, with no engine pulling the car. It begins to rain. The rain falls straight down and begins to fill the train car. The speed of the car 1. increases. 2. decreases. 3. stays
30. ## physics

Rain drops do not accelerate for long terminal speed due to the vicious drag of the air.if this did not happen rain drop would hit us with a dangerous high speed.discuss
31. ## Physics

A car travels due east with a speed of 50.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth.The traces of the rain on the windows of the car make an angle of 60 degrees with the vertical. Find the velocity of the rain
32. ## English

I am doing descriptive writing I am currently constructing a weather scene, which is a bad rainy day. This will end up building more tension to my story. Here is what I got so far... Out the window next to me, the rain was pouring heavily, from the
33. ## Physics

While driving in the rain at 30 m/s you notice that the raindrops appear to be going straight down. After dropping your little sister off at daycare you turn around and drive the opposite direction at the same speed. However now you notice that the rain is
34. ## physics

rain is falling at 5m/s making 30 degrees with the vertical towards east . to a man walking at 3m/s on a horizontal road towards east , the rain appears to be at a speed of
35. ## physics

Driving down Highway 401 in Ontario, it had rained and stopped raining by the time I came to the freezing rain on the highway. I knew there was a problem when the cars in front of me started to fly off the highway at the curve in the road. Assume the curve
36. ## Physics-rain velocity to bike

Rain falls vertically downward with a velocity of 2.4m/s. A boy moves at a speed of of 6m/s east in a bicycle with an umbrella. What is the velocity of the rain with the respect to the boy. What angle from horizontal should he hold his umbrella?

For every 25 mm of rain falling on the avarage home, 5000 L runs off the roof. Some people use barrels to collect this rain water. Cecila's town usually has 2625mm of rain each year. How many litres of water can be collected by using barrels?
38. ## statistics

in a beach side suburb it rains on 20% of days and is windy on 30% of days. if rain and wind are independent, on any particular day find the probability that: (a) it rains and is windy (b) it does not rain and is not windy (c) it rains or it windy (d) it
39. ## Maths

a flat rectangualar roof is 20m long and 12m wide. All rain falling on the roof drains into a closed cylindrical water tank. If 1cm of rain falls on the roof find a)how many litres of water drain into the tank Working out shown please
40. ## physics

If the effect of the air resistance acting on falling raindrops is ignored, then we can treat raindrops as freely falling objects. a.) Rain clouds are typically a few hundred meters above the ground. Estimate the speed with which raindrops m/s, km/hr, and
41. ## Science!!!!!!!

Okay, fill in the blanks...... Oceans affect climates by ______ the rise and fall of air tempature. (slowin, speeding up) A rain shadow is the side of the mountain that ______ clouds and rain. has, does not have The Gulf Stream ____ the wind above it.
42. ## linear modeling

If rain is falling at a rate of ¼ inch per hour, how many inches of rain would you expect after 6 hours?
43. ## Physics

During a severe storm in Palm Beach, Fla., on January 2, 1999, 31 inches of rain fell in a period of nine hours. Assuming that the raindrops hit the ground with a speed of 14 m/s, estimate the average upward force exerted by one square meter of ground to
44. ## Physics

A man walking on a road at 3km/hr encounters rain falling vertically at 18km/hr. At what angle should he hold the umbrella to protect himself from rain?
45. ## math

break it down into cases at most one day of rain in 3 days to me means we could have: norain norain norain ----> (1/3)^3 = 1/27 rain norain norain -------> 2/3(1/3^2 = 2/27 norain rain norain -------> same as above = 2/27 norain norain rain
46. ## linear modles (math)

If rain is falling at a rate of 2.61 inches per hour, how much rain would you expect after 4.5 hours? (Express your answer rounded correctly to the nearest tenth of an inch.)
47. ## Math

The probability of rain falling on the roof of Adam’s dorm on any given day is 0.15. The probability of rain falling on the lecture hall is 0.20. On days when rain strikes the dorm roof, it has a 0.90 probability of also striking the lecture hall roof.
48. ## Meterology

What does it mean when a Meterologist calls for 50% chance of rain? That it can rain but it might not. So their not sure it's in the middle! Sanca...dead wrong. Actually, 50% chance of rain means that it will rain 5 out of 10 times a forecast of 50% is
49. ## Physics

#4. Rain is falling at a velocity of 10,0 m/s at an angle of 30* towards the west. At what velocity and direction does a marathon runner have to go in order for him to get rain on his head?
50. ## Physics

#4. Rain is falling at a velocity of 10,0 m/s at an angle of 30* towards the west. At what velocity and direction does a marathon runner have to go in order for him to get rain on his head?
51. ## math

a train is moving at 40km/hr and rain is falling at 10km/hr find velocity of rain relative to train
52. ## physics

a rain drop of radius 0.3mm has a terminal velocity in air 1m/s. the viscosity of air is 18×10^-5 dyne cm^-2 s. find the viscous force on the rain drops in newton.
53. ## Physics

An automobile with a mass of 100kg is moving north on a level straight highway with a constant velocity of 80km/h. What is the unbalanced force acting on the automobile?
54. ## statistics

the average amount of rain per year in Greenville is 49 inches. the standard deviation is 8 inches. find the probability that nest year greeville will receive the following amount of rainfall. assume the variable is normally distributed. a) At most 55
55. ## physics

How to solve: If a man walk with speed of 2km/hour and rain fall became in the shape of 90 degree.then find out velocity n direction of rain if man walk with speed of 4km/hour and angle of rain is 45 degree
56. ## social studies

which of the following is a example of a natural hazard of the type and magnitude of those referred to in the article? (one) an automobile accident (two)a rain shower (three) a volcanic eruption (four) a falling tree limb (five) a fire in a restaurant
57. ## Calculus

A road perpendicular to a highway leads to a farmhouse located 6 mile away. An automobile traveling on the highway passes through this intersection at a speed of 75mph. How fast is the distance between the automobile and the farmhouse increasing when the
58. ## Geography (Ms. Sue)

1). What are some of the important resources of the rain forest? A: Some of the significant resources of the rain forest include timber and various types of plants which can be used to concoct medicine. 2). What are some of the costs of the destruction of
59. ## social studies

which of the following is an example of a natural hazard of the type and magnitude of those referred to in the article? 1)an automobile accident 2) a rain shower 3)a volcanic eruption 4) a falling tree limb 5)a fire in a restaurant please help meeeee
60. ## ap chem

Acid rain has a pH value of 3.0, whereas normal rain has a pH value of 5.6. Calculate the ratio of the hydronium ion in acid rain to that in normal rain.
61. ## ap chemistry

Acid rain has a pH value of 3.0, whereas normal rain has a pH value of 5.6. Calculate the ratio of the hydronium ion in acid rain to that in normal rain.
62. ## math

On the first two days of Mark's vacation, the weather forecaster reports a 25% chance of rain. On the third day of his vacation, Mark is faced with a 50% chance of rain. What is the probability that Mark will have three straight days of rain?
63. ## physics

A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 7.8 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of 56° when they move past the
64. ## Physics

A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 8.2 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of 62° when they move past the
65. ## Earth Science (Climates)

The Atacama desert in northwest Chile is located on the west side of the Andes and at same latitude in Chile, the east side of the Andes is part of the tropical rain forest. In southern Chile, there is a lot of snow and rain on the west side of the Andes
66. ## English

Hello I am in 4th grade and i have wrote this poem: i am waiting for the rain from such a Long time this heatness is suffocating Air conditionar has just became the prime Opening the windows and everywhere is the grime Feel's like I am in a desert Will it
67. ## Physics

A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 3.6 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of 60° when they move past the
68. ## physics

A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 4.15 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of 25° when they move past the
69. ## Calculus

A road perpendicular to a highway leads to a farmhouse located 6 mile away. An automobile traveling on the highway passes through this intersection at a speed of 55mph. How fast is the distance between the automobile and the farmhouse increasing when the

flat roof that is 22Œ by 36Œ cylindrical cistern 12Œ high and 5Œ in diameter Rain falls on a flat roof that is 22Œ by 36Œ. The rain drains into a cylindrical cistern 12Œ high and 5Œ in diameter. Assume that all of the rain drains
71. ## College Physics 1

A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 6.17 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of 25° when they move past the
72. ## physics

A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 8.1 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of θ = 25° when they move
73. ## physics

A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 6.6 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of θ = 36° when they move
74. ## Physics

A sleepy man drives a car along a straight section of highway at a constant speed of 89.6 km/h. His eyes begin to close, and his car moves at an angle of 4.90° relative to the road. For how long can his attention lapse before the car begins to move across
75. ## science

Is acid rain a homogeneous or heterogeneous mixture? If we mean that each drop of rain may not have the same amount of acid in it as the next drop, it must be heterogeneous. That would mean that each drop of rain absorbed different amounts of the
76. ## physics

A man is walking due east at the rate of of 4kmph and the rain is falling 30° east of vertical with a velocity of 6kmph the velocity of rain relative to the man will be
77. ## physics

You're driving on the freeway going 90km per hour and it starts to rain. The raindrops make an angle of 40 degrees with the vertical when viewed through the driver's side window. What is the speed of the raindrops measured by someone at rest relative to
78. ## Calculus - Related Rates

A road perpendicular to a highway leads to a farmhouse located 5 miles away. An automobile traveling on the highway passes through this intersection at a speed of 65mph. How fast is the distance between the automobile and the farmhouse increasing when the
79. ## calculus

a road that runs perpendicular to a highway leads to a farmhouse located one mile off the highway an automobile travels down the highway past the road leading to the farmhouse at a speed of 60 mph how fast is the distance between the farmhouse an
80. ## Socials

explain what the term rain-shadow means? The term rain-shadow refers to an area that gets a very small amount of rain situated on the leeward slope of mountains.
81. ## Physics

To a cyclist riding west at 20 kg/hr, the rain appears to meet him at an angle of 45° with the vertical. When he rides at 12 km/hr, the rain meets him at an angle of 19°48’ with the vertical. What is the actual direction of the rain?
82. ## Math.

43.The forecast predicted that Dallas County would receive eight inches of rain over the next two days. On Thursday Dallas County received 3.4 inches of rain. On Friday it rained twice with Dallas County Reciving 1.2 inches of rain each time. What was the
83. ## Earth Science

Slide 1 This is a cumulus cloud. Can you find four things on the word list that you can use to describe this cloud. Cumulus clouds consists of puffy tops, no rain expected, 3,000 ft. high, and flat bottoms. Slide 2 This is an example of towering cumulus
84. ## stats-probability

given a chart with rain in inches- the greatest amount being 15 inches on the chart, we know the cumulative proability is 1. what is the probability of more than 15 inches of rain falling
85. ## math urgent

2 rainstorms occurred in one week in a certain area in the first storm, 15ml of rain fell per hour, and in the second storm, 20ml of rain fell per hour. rain lasted for a total of 40 hours, resulting in a total rain of 675ml. how long was each storm. 1st
86. ## physics

Snow is falling vertically at a constant speed of 6.6 m/s. At what angle from the vertical do the snowflakes appear to be falling as viewed by the driver of a car traveling on a straight, level road with a speed of 66 km/h?
87. ## physics

In the following situations identify the agent exerting the force and the object on which it acts .State the effect and kind of force in each case. a>Falling of rain drops. b>A horse pulling a cart. c>A car coming to rest once its engine is
88. ## Math

Showers on Monday morning produced 0.5 inches of rain by noon. By p.m. a total of 2 inches of rain had fallen. How many inches of rain fell between noon and 6 p.m.? I think it's 1.5
89. ## Language

Which of the following is an example of onomatopoeia? A puddle a jump puddle splosh•• Jump in and slide Umbrella umbrella umbrella umbrella Bumbershoot barrel of rain What is the onomatopoeia describing? The amount of rain The sound of someone jumping
90. ## English

1. Can you give me a rain check? 2. Can I take a rain check? 3. Can I have a frain check? 4. Can I get a rain check? (Are they all grammatical and the same? Which expression is commonly used?)
91. ## Ela

All of the following sentences are complex EXCEPT A) Even though acid rain can have damaging effects, few people know much about it. B) Acid rain has been studied as an environmental issue by the government since the 1970s. C) Since they erode statues and
92. ## physics

An automobile traveling along a straight road increases its speed from 89 ft/s to 104 ft/s in 180 ft. If the acceleration is constant, how much time elapses while the auto moves the 180 ft? Answer in units of s
93. ## Physics

An automobile traveling along a straight road increases its speed from 67 ft/s to 85 ft/s in 180 ft. If the acceleration is constant, how much time elapses while the auto moves the 180 ft? Answer in units of s. Can you tell me the steps in doing this?
94. ## English

I left out these sentences. Thank you. 1) I hope the weather will be nice/good. I hope to have luck with the weather. If there is heavy rain, I'll have to wear walking boots. I also have a wind breaker in my rucksack in case it will rain. 2) All the boys
95. ## Math (probability)

Could someone please correct my work. A fishing magazine collected data and printed the following results: If there is rain then the probability of catching a fish at Lake Blue is 80%, but if it doesn't rain then the probability of catching a fish at Lake
96. ## Language Arts

All of the following sentences are complex EXCEPT A) Even though acid rain can have damaging effects, few people know much about it. B) Acid rain has been studied as an environmental issue by the government since the 1970s. C) Since they erode statues and
97. ## probability

Before leaving for work, Victor checks the weather report in order to decide whether to carry an umbrella. The forecast is “rain" with probability 20% and “no rain" with probability 80%. If the forecast is “rain", the probability of actually having
98. ## Chemical Engineering

A small family home in Tucson, Arizona, has a rooftop area of 1967 square feet, and it is possible to capture rain falling on about 56% of the roof. A typical annual rainfall is about 14 inches. If the family wanted to install a tank to capture the rain
99. ## critical thinking

The annual rainfall averages twenty-three inches. That doesn’t mean that every year will be 23 inches. Weather is unpredictable so it might not rain at all or rain past the annual average. Then again it might just do that, rain twenty-three inches in the
100. ## Chemistry

Rain drops fall on a tile surface at a density of 4380 drops/ft^2. There are 15 tiles/ft^2. How many drops fall on each tile? Answer in units of drops/tiles.