A Space Probe Approaches a Planet, Taking Measurements as It $6000 \mathrm { MV }$

question 92

Multiple Choice

A space probe approaches a planet, taking measurements as it goes. If it detects a potential difference of $6000 \mathrm { MV }$ between the altitudes of $253,000 \mathrm {~km}$ and $276,000 \mathrm {~km}$ above the planet's surface, what is the approximate electric field strength produced by the planet at $264,500 \mathrm {~km}$ above the surface? Assume the electric field strength is approximately constant at these altitudes.

• A) \(493 \mu \mathrm { N } / \mathrm { C }\)
• B) \(0.261 \mathrm {~N} / \mathrm { C }\)
• C) \(561 \mathrm {~N} / \mathrm { C }\)
• D) \(261 \mathrm {~N} / \mathrm { C }\)

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Definitions:

Compounded Monthly

Interest on an investment is calculated monthly and added to the principal sum, affecting future interest calculations.

Annual Rate

The interest rate for a period of one year, used to compare the yield of different financial products or investments.

Discount Rate

The interest rate charged to commercial banks and other financial institutions for the loans they take from the central bank's discount window, also a factor in present value calculations.

Perpetuity

A type of annuity that continues indefinitely, often used in financial modeling to represent a constant stream of identical cash flows without an end.