A bridge that was 10.4 m long has been washed out by the rain several days ago. How fast must a carbe going to successfully jump the stream? Although the road is level on both sides of the bridge, theroad on the far side is 1.5 m lower than the road on this side.

Answered: Image /qna-images/answer/4e9214ed-ab6a-4d55-be47-8f36990b799b.jpg

Answered: A bridge that was 10.4 m long has been…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter11: Collisions

Section: Chapter Questions

Problem 11PQ

See similar textbooks

Similar questions

A garden hose with a diameter of 2.0 cm is used to fill a bucket, which has a volume of 0.10 cubic meters. It takes 1.2 minutes to fill. An adjustable nozzle is attached to the hose to decrease the diameter of the opening, which increases the speed of the water. The hose is held level to the ground at a height of 1.0 meters and the diameter is decreased until a flower bed 3.0 meters away is reached. (a) What is the volume flow rate of the through the nozzle when the diameter 2.0 cm? (b) What does is the speed of coming out of the hose? (c) What does the speed of the water coming out of the hose need to be to reach the flower bed 3.0 meters away? (d) What is be diameter of nozzle needed to reach be flower bed?
A rock with a mass of 540 g in air is found to have an apparent mass of 342 g when submerged in water. (a) What mass of water is displaced? (b) What is the volume of the rock? (c) What is its average density? Is this consistent with the value for granite?
A host pours the remnants of several of wine into a jug a party. The host then inserts a cork with a 2.00-cm diameter into the bottle, placing it in direct contact with the wine. The host is amazed when the host pounds the cork into place and the bottom of the jug (with a 14.0-cm diameter) breaks away. Calculate the extra force exerted against the bottom if he pounded the cork with a 120-N force.
A waterfall ride at King’s Dominion is 50 m high. The water flows over the top of the falls with a speed of 3 m/s.a) What is the speed of the water as it approaches the bottom of the falls?
The leaves of a tree lose water to the atmosphere via the process of transpiration. A particular tree loses water at the rate of 3 × 10-8 m3/s; this water is replenished by the upward flow of sap through vessels in the trunk. This tree’s trunk contains about 2000 vessels, each 100 μm in diameter. What is the speed of the sap flowing in the vessels?
Atherosclerosis is a disease characterized by the thickening of the arterial wall. In this condition a deposit forms on the arterial wall, reducing the opening through which the blood flows. Suppose that because of this disease, the area of the clogged artery is 0.8 of the area of the normal artery. If the blood is moving at 0.40 m/s in the normal artery, find its speed at the clogged portion of the artery.
1) Water leaves the end of a faucet that is .35 m above the bottom of the sink, with a speed of 1.25 m/s. The radius of the stream of water is 1 cm, when it leaves the faucet. As the water falls down toward the sink, the diameter of the stream deceases, as shown. Vb = Vb = Ytop = .35 m m/s Tb = Ybot = 0 m NAME a) Using the continuity equation, find the speed of the water at the bottom, in terms of the radius of the stream at the bottom, r. This will be in terms of the variable T- cm Vtop= 1.25 m/s Itop b) Now use Bernoulli's equation to find the speed of the water when it hits the bottom of the sink. When the water leaves the end of the faucet, the pressure is atmospheric pressure, the same as it will be when it hits the bottom of the sink. You will get a number for this. <= 1 cm For this problem, keep the radius units in cm but keep ytop in m, Vtop in m/s c) Using the speed you just calculated and your answer to part a, find the radius of the stream at the bottom, rb, when it hits the…
b)As the air sinks down, it is channeled through narrow valleys and so speeds up. In the desert the wind blows at about 5 miles per hour across an area of 100 square miles (width x height in the atmosphere). It is then squeezed into an area of just 20 square miles as it blows through narrow valleys in the mountains around Los Angeles. Assume that airflow must stay constant, what would the velocity of the air be? (2) Airflow = area * velocity c) Vegetation has to be heated up to 330 oC in order to ignite. Can you explain, using the physics we learned in class, why vegetation that contains more water does not ignite as easily as dry/dead vegetation? (2)
You are working as an assistant to a landscape architect, who is planning an artificial waterfall in a city park. Water flowing at 1.91 m/s will leave the end of a horizontal channel at the top of a vertical wall h 2.95 m high, and from there it will fall into a pool (see the figure below). (a) The architect has asked you to determine if the space behind the waterfall will be wide enough for a pedestrian walkway. (Enter the maximum width, in meters, of a walkway behind the waterfall.) m (b) To sell her plan to the city council, the architect wants to build a model to standard scale, which is one-twelfth actual size. She asks you to design and build the model, with the important question being: how fast (in m/s) should the water flow in the channel in the model? m/s
A river flowing steadily at a rate of 175 m3/s is considered for hydroelectric power generation. It is determined that a dam can be built to collect water and release it from an elevation difference of 80 m to generate power. Determine how much power can be generated from this river water after the dam is filled.
Wastewater is flowing in an open channel at a depth of 2.1872 yards and a velocity of 3.2808 yards/s. It flows down a chute into another channel where the depth is 1.0936 yards and the velocity is 16.4042 yards/s. Neglecting friction, determine the difference in elevation of the channel floors. O 3.64 m O 3.90 m 4.15 m O 4.28 m Other.
of 17. Fire is caught at height of 125 m from the fire brigade. To extinguish the fire, water is coming out from the pipe of cross section 6.4 cm with rate 950 litre/min. Find out minimum velocity of water exiting from fire brigade tank (g = 10m/s?) (1) 5 m/s (2) 10 m/s (3) 25 m/s (4) 50 m/s

SEE MORE QUESTIONS

Recommended textbooks for you

Physics for Scientists and Engineers: Foundations…

Physics

ISBN:

9781133939146

Author:

Katz, Debora M.

Publisher:

Cengage Learning

University Physics Volume 1

Physics

ISBN:

9781938168277

Author:

William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:

OpenStax - Rice University

Principles of Physics: A Calculus-Based Text

Physics

ISBN:

9781133104261

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Physics for Scientists and Engineers: Foundations…

Physics

ISBN:

9781133939146

Author:

Katz, Debora M.

Publisher:

Cengage Learning

University Physics Volume 1

Physics

ISBN:

9781938168277

Author:

William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:

OpenStax - Rice University

Principles of Physics: A Calculus-Based Text

Physics

ISBN:

9781133104261

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Classical Dynamics of Particles and Systems

Physics

ISBN:

9780534408961

Author:

Stephen T. Thornton, Jerry B. Marion

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS

A bridge that was 10.4 m long has been washed out by the rain several days ago. How fast must a car be going to successfully jump the stream? Although the road is level on both sides of the bridge, the road on the far side is 1.5 m lower than the road on this side.