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2 years ago

8

A 2,000-kg test car, traveling 60 m/s hits a brick wall. Using motion pictures, the time involved is determined to be 0.050 s. W

hat impulse does the car impart to the wall?

2 answers:

julia-pushkina [17]2 years ago

6 0

Impulse= Δvm
=2000(60-0)
=120000Ns

vovangra [49]2 years ago

3 0

Answer:

1.2 x 10^5

Explanation:

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The growers of Sunny Day Citrus have determined that their chief priority for choosing a transportation mode within the United S

Leya [2.2K]

Answer:

Rail transportation

Explanation:

Considering the situation described above in the questions, Sunny Day Citrus should use RAIL TRANSPORTATION to ship their oranges.

There are basically four means of shipping goods, these include road, maritime, rail, and air shipment.

However, considering the need to achieve quick transit time, low margins, low cost, and the highest level of reliability the best means of use is RAIL TRANSPORTATION.

This is because while Air shipment is the fastest, it is the most expensive. Also, the Maritime or Ship may be the lowest in terms of cost, but since it is within the United States, it would be relatively expensive compared to rail and also is the slowest in terms of transit time.

Similarly, the road may be faster and relatively cheaper compared to air, but not as cheaper compared to the rail in a long distance.

Rail transportation offers cheaper, low margins, reliability as it is difficult to have accidents and robbery of such commodities inside the train. It is also quite faster compared to ship.

Hence, in this case, the right answer is RAIL TRANSPORTATION

8 0

2 years ago

A $10,000 municipal bond with 10 years to maturity is purchased in the primary market at 105. The bond is sold after 2 years at

Mama L [17]

Answer: B. a 2 point capital gain

Explanation:

Municipal Bonds have to be amortized using the straight-line method and this applied to both newly issued or bonds being traded at a premium.

The bond in question is trading at 105 and so has a 5 point premium which needs to be amortized at 1 point a year for 5 years. As it was bought after two years, the amortization was 2 points which means the cost of the bond should be;

105 - 2 = 103

Yet it was sold for 105. The gain is therefore

= 105 - 103

= 2 point capital gain

7 0

3 years ago

A list of n items is arranged in random order; to ﬁnd a requested item, they are searched sequentially until the desired item is

kompoz [17]

<span>n/2 = average number of items to search. Or more precisely (n+1)/2 I could just assert that the answer is n/2, but instead I'll prove it. Since each item has the same probability of being searched for, I'll simulate performing n searches on a list of n items and then calculate the average length of the searches. So I'll have 1 search with a length of 1, another search looks at 2, next search is 3, and so forth and so on until I have the nth search looking at n items. The total number of items looked at for those n searches will be: 1 + 2 + 3 + 4 + ... + n Now if you want to find the sum of numbers from 1 to n, the formula turns out to be n(n+1)/2 And of course, the average will be that sum divided by n. So we have (n(n+1)/2)/n = (n+1)/2 = n/2 + 1/2 Most people will ignore that constant figure of 1/2 and simply say that if you're doing a linear search of an unsorted list, on average, you'll have to look at half of the list.</span>

6 0

3 years ago

The structural engineering design section within the engineering department of a regional electrical utility corporation has dev

Vinil7 [7]

Answer:

102.99 hours needed

Explanation:

Zu = K (U^n)

Zu= estimation of tower which is for 8

U= number of tower which is 8

n= log0.94/log2

$Zu= 124(8^{log0.94/log2} )= 102.99hours$

6 0

2 years ago

The purpose of the ______________________ is to address financial uncertainty and provide the nation with a more stable economy.

katen-ka-za [31]

Answer:

The Federal Reserve System

Explanation:

The Federal Reserve System represents the United State's Central bank. It is also called either the Fed or the Federal Reserve.

Created by the U.S. congress, the Fed is in charge of the affairs of the financial system of the United States. Specifically, it was created to ensure that the financial system is flexible, safe and <u>monetarily stable</u>.

The Fed regulates banking activities, maintains the stability of the financial system and is also in charge of the monetary policies adopted in the United States.

8 0

2 years ago