Physics, 12.12.2019 06:31 lesliesaucy4987

Arailroad car of mass m moving at a speed v1 collides and couples with two coupled railroad cars, each of the same mass m and moving in the same direction at a speed v2.

(a) what is the speed vf of the three coupled cars after the collision in terms of v1 and v2? vf =

(b) how much kinetic energy is lost in the collision? answer in terms of m, v1, and v2. ? ke =

Answers: 3

Show answers

Another question on Physics

Physics, 21.06.2019 12:40

From the graph the speed of the snail in the first 20 seconds centimeter/second. after that, the snail remains in the same place for seconds

Answers: 3

Answer

Physics, 21.06.2019 21:30

Aquantity of gas has a volume of 1.5 m3 and an absolute pressure of 95 kpa. when the gas is compressed to a volume of 0.5 m3, what is the new absolute pressure of the gas? (assume that there’s no change in temperature.)

Answers: 3

Answer

Physics, 22.06.2019 00:30

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Answers: 1

Answer

Physics, 22.06.2019 08:00

You have a pick-up truck that weighed 4,000 pounds when it was new. you are modifying it to increase its ground clearance. when you are finished

Answers: 1

Answer

You know the right answer?

Arailroad car of mass m moving at a speed v1 collides and couples with two coupled railroad cars, ea...

Questions

Biology, 18.05.2021 19:30

What is the total amount of carbon added to the atmosphere from soil and the burning of fossil fuels?(this is for gizmos lab carbon cycle)...

Mathematics, 18.05.2021 19:30

For each of the next three day, the probability that it will rain on that day is 2/3. what is the probability that it will NOT rain on any of these t...

Biology, 18.05.2021 19:30

A wire that is attached to a battery is used to light a bulb. What type of element is the wire most likely made of?...

Computers and Technology, 18.05.2021 19:30

Given the following code, assume the myStack object is a stack that can hold integers and that value is an int variable. Assume that the pop function,...

Biology, 18.05.2021 19:30

Explain why serine proteases do not catalyze hydrolysis if the amino acid at the hydrolysis site is a D-amino acid. Trypsin, for example, cleaves on t...

Mathematics, 18.05.2021 19:30

The Martian monetary system uses colored beads instead of coins. A blue bead is worth 3 Martian credits, and a red bead is worth 7 Martian credits. Th...

Business, 18.05.2021 19:30

When Mason Automotive Supply asked employees from a number of departments, such as marketing, finance, sales, human resources and production, to come...

Mathematics, 18.05.2021 19:30

What’s the expression to the exponent ...

Business, 18.05.2021 19:30

Jumpst Corporation uses the cost formula Y = $5,200 + $0.40X for the maintenance cost in Department B, where X is machine-hours. The August budget is...

Physics, 18.05.2021 19:30

A 2.00-m long uniform beam has a mass of 4.00 kg. The beam rests on a fulcrum that is 1.20 m from its left end. In order for the beam to be balanced,...

Mathematics, 18.05.2021 19:30

Jessica runs each lap in minutes. She will run more than minutes today. What are the possible numbers of laps she will run today? Use for the number...

Arts, 18.05.2021 19:30

art 312 What did term did Duchamp invent for this kind of artwork? What does that term mean? What point was he trying to prove in making & submitt...

Business, 18.05.2021 19:30

The Heath Corporation reported net income for 20X1 of $177,500. Heath began the year with 100,000 shares of $5 par value common shares outstanding and...

Business, 18.05.2021 19:30

Trini Inc. bases its manufacturing overhead budget on budgeted direct labor-hours. The direct labor budget indicates that 8,800 direct labor-hours wil...

Business, 18.05.2021 19:30

If the number of employed persons in a country equals 27 million, the number of unemployed persons equals 3 million, and the number of persons over ag...

Chemistry, 18.05.2021 19:30

Equal molar quantities of Ca2 and EDTA (H4Y) are added to make a 0.010 M solution of CaY2- at pH 10. The formation constant for CaY2- is 5.0 x 1010 an...

Business, 18.05.2021 19:30

Steve Pratt, who is single, purchased a home in Spokane, Washington, for $347,500. He moved into the home on February 1 of year 1. He lived in the hom...

Business, 18.05.2021 19:30

Which statement is true? Portfolio A dominates portfolio B if: Portfolio A has a higher return that portfolio B Portfolio A has a lower volatility tha...

Mathematics, 18.05.2021 19:30

The FDA is testing a new ointment designed to deliver 3.5 micrograms of active ingredient to each square centimeter of skin. Nine(9) subjects apply th...

Mathematics, 18.05.2021 19:30

Which shows 0.124 in expanded form? A. ( 1 × 1 10 ) + ( 2 × 1 100 ) + ( 4 × 1 1000 ) B. 1 + ( 2 × 1 100 ) + ( 4 × 1 1000 ) C. 1 + ( 2 × 1 10 ) + ( 4 ×...

More questions: Physics Another questions