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aksik [14]
3 years ago
13

The planet closest to the sun that has a dense iron core and no moons would most likely be?. A. Mars. B. Mercury. C. Earth. D. V

enus
Physics
1 answer:
Oduvanchick [21]3 years ago
3 0
The planet closest to the sun that has a dense iron core and no moons is : B. mercury
From the options above, only mercury and venus are the one that doesn't have moons. Between the two, mercury is the one that has a dense iron core

hope this helps

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How much current must be applied across a 60 Ω light bulb filament in order for it to consume 55 W of power? Unserious answers w
sergij07 [2.7K]

Answer: current I = 0.96 Ampere

Explanation:

Given that the

Resistance R = 60 Ω 

Power = 55 W

Power is the product of current and voltage. That is

P = IV ...... (1)

But voltage V = IR. From ohms law.

Substitutes V in equation (1) power is now

P = I^2R

Substitute the above parameters into the formula to get current I

55 = 60 × I^2

Make I^2 the subject of formula

I^2 = 55/60

I^2 = 0.92

I = sqr(0.92)

I = 0.957 A

Therefore, 0.96 A current must be applied.

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3 years ago
Calculate the force experienced by a positive test charge of 8.1 × 10-9 coulombs if the electric field strength is 9.4 × 107 new
Arte-miy333 [17]
The electric force exerted by an electric field of intensity E on a charge q is equal to the product between E and q, so:
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5 0
3 years ago
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A family car has a mass of 1400 kg. In an accident it hits a wall and goes from a speed of 27 m/s to a standstill in 1. 5 second
madreJ [45]

The force involved is = 25200 Newton

Given the values in the questions,

Mass = 1400 kg

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According to the formula of force,

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Putting the value of acceleration in equation 1,

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Therefore, the force involved is = 25200 Newton

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1 year ago
A thermometer is placed into a flask of water with pieces of ice and reads 273.15. Which temperature scale is being used? A. Kel
zzz [600]

A. Kelvin. It is 32 degrees fahrenheit

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3 years ago
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vekshin1
“The term significant figures refers to the number of important single digits (0 through 9 inclusive) in the coefficient of an expression in scientific notation . The number of significant figures in an expression indicates the confidence or precision with which an engineer or scientist states a quantity.”
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