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4 years ago

Observationally, how can one decide which of the four general expansion models best describes the present-day universe?

1 answer:

N76 [4]4 years ago

4 0

<span>Answer: Recollapsing-no dark energy and matter density of universe is greater than critical density (Big Crunch-BB). Critical- no dark energy and matter density equals the critical density (not collapse but expand slowly). Coasting- no dark energy and matter density is smaller than critical density (universe expands forever w/ little change in rate expansion). Accelerating- dark energy exerts a repulsive force that cause expansion of the universe to accelerate with time (more dark universe). We can tell the lookback time to the supernova from the distance and how much the universe has expanded since the supernova explosion from their redshifts (tells how fast universe expanded).</span>

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Bob, a merchant, makes an offer to Linda, another merchant, to buy 1,000 of her widgets in a signed letter containing all necess

Orlov [11]

Answer:

a. Linda's acceptance is effective and a contract is created.

Explanation:

A contract is created when there is an offer and acceptance of a transaction. When the contract is created it is enforceable and not revocable unless with the consent of parties involved.

Bob made an offer to Linda to buy her 1,000 of her widgets. The offer is open for 3 weeks and Linda accepted the offer within one week.

Although Bob tried to revoke the offer, since Linda has accepted it the contract is created and enforceable on Bob.

3 0

3 years ago

When reconciling a bank account, which one of the following is considered a timing difference (difference between the bank balan

DanielleElmas [232]

Answer:

Outstanding checks

Explanation:

One of the reasons why a cash book and a bank statement might <em>not show identical entries arise</em> from outstanding checks.

Outstanding checks are payments that have not yet been cleared and debited to the account at the bank.

8 0

3 years ago

Que representa el número atómico

Ber [7]

Answer:

es el número total de protones que tiene cada átomo

Explanation:

3 0

3 years ago

It takes 11.553 years for an initial investment to double at an annual force of interest δ. How long will it take for an initial

Triss [41]

Answer:

It will take 18.041 years to triple the investment.

Explanation:

$(1+\delta )^{11.553} =2 \\$

We need to solve for delta:

$\delta = \sqrt[11.5530]{2} -1$

delta = 0.06183353

now solve for this rate compounding twice per year to triple the investment:

$(1+0.06183353/2 )^{n*2} =3 \\$

we use logarithmics properties and solve for n:

[tex]2 \times n= \frac{log3}{log(1+06183353/2)

n = 18.04051743

It will take 18.041 years to triple the investment.

3 0

4 years ago

The Sarbanes-Oxley Act requires the ____ to vouch for the truthfulness and fairness of a firm's financial disclosures. a. CEO b.

KatRina [158]

Answer:

The Serbanes-Oxley Act requires the Chief Executive Officer and the Chief's Financial Officer to vouch for the truthfulness and fairness of a firm's financial disclosures.

Explanation:

The CFO being in charge of the firm's financial affairs is saddled with such responsibility while the CEO being the one man at helms of affairs of the company is also responsible for the firm's financial probity,coupled with the fact the CFO may be required to report to the CEO depending on the structure of the firm.

4 0

4 years ago