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Which magnitude of star is brighter -5 or 2?
A magnitude of -5 is brighter than a magnitude of 2. The magnitude scale used in astronomy is inverted, meaning the lower the number, the brighter the object. So, a negative magnitude indicates a brighter star than a positive magnitude.
Which star is brighter -2 or -3?
The way stellar magnitude works, a smaller number is associated with increased brightness. Since -3 < -2, a magnitude -3 star would be brighter than a magnitude -2 star. Each decrease in magnitude by 1 means in increase in brightness by a factor of about 2.5119. Equivalently, each decrease in magnitude by 5 means an increase in brightness by a factor of 100. Incidentally, the brightest star in the sky (Sirius) has an apparent magnitude of only about -1.5.
What is a stars brightness known as?
A star's brightness is known as its magnitude. Stars with lower magnitude numbers are brighter than stars with a higher magnitude number.
How many times brighter is a magnitude 1 star than a magnitude 2 star?
A magnitude 1 star is 2.5 times brighter than a magnitude 2 star. This is because the magnitude scale is logarithmic, with each whole number representing a brightness difference of about 2.5 times.
How do astronomers rate the magnitude of a stars?
Astronomers rate the magnitude of a star using the apparent magnitude scale, which measures the brightness of a star as seen from Earth. The lower the magnitude number, the brighter the star appears. Negative numbers indicate very bright stars, while positive numbers indicate dimmer stars.
Which magnitude of star is brighter -5 or 2?
A magnitude of -5 is brighter than a magnitude of 2. The magnitude scale used in astronomy is inverted, meaning the lower the number, the brighter the object. So, a negative magnitude indicates a brighter star than a positive magnitude.
Why is the sum of a positive integer and a negative integer is always negative?
It isn't always negative. ... for example: -5 + 12 = 7 (a positive number) -5 + 2 = -3 (a negative number) -5 + 5 = 0 (neither negative nor positive) If the negative number has greater magnitude than the positive number, the sum will be negative If the positive number has greater magnitude than the negative number, the sum will be positive If the negative and positive numbers have the same magnitude, the sum will be zero.
Can be magnitude of a vector have negative value?
Vectors have magnitude and direction. The magnitude is always a positive number.
What is a positive add a negative?
The sum will have the same sign as the number with the largest magnitude. If the numbers have the same magnitude, then the answer is zero, which is positive.
Is a negative number minus a negative number a positive or negative answer?
It can have any sign. For example, -3 - (-1) = -3 + 1 = -2 the answer is negative. -3 - (-3) = -3 + 3 = 0 the answer is zero. -3 - (-5) = -3 + 5 = 2 the answer is positive. If the magnitude of the second negative [1] is smaller than the magnitude of the first [3], the answer is negative. If the magnitudes are equal, the answer is zero If the magnitude of the second number [5] is bigger than the magnitude of the first [3], the answer is positive.
When is the sum of a positive integer and a negative integer negative?
When the absolute value of the negative number is higher than the positive number.
Which number is a magnitude number 33 or negative 52?
The magnitude of a number is always positive - it's the same as the absolute value.-52 can't be a magnitude, 33 can.
How can atoms be neutral if they have charged particles?
because in their neutral state the number of positive particles is equal to the number of negative particles and the magnitude of a single positive charge is the same as the magnitude of a single negative charge in short the positive and negative charges cancel each other out
What is negative plus positive?
It depends on the magnitude of the negative and positive values. Equal magnitudes equal zero. -2 + 2 = 0 Larger negative number than positive number equals a negative number. -3 + 2 = -1 Smaller negative number than positive number equals a positive number. -2 + 3 = 1
What if you multiply a positive number with negative number?
The magnitude of the answer is the same whatever the signs of the two numbers. If the two numbers have different signs, then the answer is negative. If they have the same sign, the answer is positive.
What are the rules for adding postive and negative integers?
Not sure if you want just a positive and a negative integer, added or more info.2 positive integers a & b (easiest)a + b the result is positive.2 negative integers a & bAdd the magnitude of a and magnitude of b, the result is negative.Example -2 + -5 = -(2+5) = -(7) = -7a is positive, b is negative, take the difference of the magnitudes, thenif |a| (magnitude of a) greater than |b| (magnitude of b), the result is positive.if |a| (magnitude of a) less than |b| (magnitude of b), the result is negative.Example: 2 + -5 (the difference of magnitudes is 5-2 = 3The negative number has a bigger magnitude, so the answer is negative: -3-2 + 5The difference is still 3, but the positive number has bigger magnitude,so the result is positive: +3
What is the absolute value of -7.61?
Absolute value of any number is just the magnitude without any sign attached to it. For positive numbers the magnitude is the value of the number. For negative numbers just remove the negative sign and you will have the magnitude. In this case the magnitude is 7.61
