¡Ayuda, por favor!

La fórmula de Lorentz para la contracción en la teoría de la relatividad relaciona la longitud L de un objeto, que se mueve a una velocidad de V con respecto a un observador, con su longitud L0 en reposo. Si c es la velocidad de la luz. entonces:

L²=L0 ² (1- V²/C²)

¿Para qué velocidades L será menor que 1/2 L0? Exprese su respuesta en términos de c.​

Answers

Answer 1

Answer:

I don't understand.............


Related Questions

Match these together

1 similar figure

2 congruent

3 corresponding sides

4 corresponding angles

a. angles that have the same measure are _______.

b. sides in the same relative position. In similar figures they are proportional.

c. Figures with the same shape but no necessarily the same size

d. angles in the same relative position. in similar figures they are congruent

Answers

1. C
2. A
3. B
3. D

Hope this helps

HELP ME PLZ!!!! A bakery sold 48 chocolate cupcakes in a day, which was 12% of the total number of cupcakes sold that day. How many total cupcakes did the bakery sell that day?

Answers

the bakery sold 400 cupcakes that day. 1% of the total cupcakes sold would be 4, so multiplied by 100 to make it 100% would be 400.

400 cupcakes will be sold by the bakery on that day if the percentage of total sales is 12%.

What is the percentage?

It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.

A set of financial statements with a budgeted amount are created using the percentage-of-sales approach. The predicted sales level for the budget period is calculated by converting each historical cost into a percentage of net sales.

It is given that,

Total number of chocolate cupcakes sold = 48

Let the x be the cupcakes that will be sold by the bakery on that day

According to the given condition, 12% of the total number of cupcakes is 48.

⇒12% of x = 48

⇒(12/100) × x =48

⇒x=(48×100)/12

⇒x=400

Thus, 400 cupcakes will be sold by the bakery on that day if the percentage of total sales is 12%.

Learn more about the percentage here:

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what fractional part is black?

Answers

Answer:

Step-by-step explanation:

A =5/8. B=2/4. C=4/10. D= 3/6. Hope this helped!

How were some European Jews able to come to Georgia in the 1930s? Check all that apply.

The US government loosened its restrictions on Jewish immigration.

Officials in the Georgia state government sponsored most immigrants.

Jewish immigrants tried to help family members back in Europe escape.

Private organizations helped Jewish children and teenagers find homes.

American citizens legally agreed to be responsible for Jewish immigrants.

Jewish American activists worked to bring immigrants to the United States.

Answers

Answer:

Georgian Jews (Georgian: ქართველი ებრაელები, romanized: kartveli ebraelebi) are a community of Jews who migrated to Georgia during the Babylonian captivity in 6th century BC.[2] It is one of the oldest communities in that land.

Prior to Georgia's annexation by Russia in 1801, the 2,600-year history of the Georgian Jews was marked by an almost total absence of antisemitism and a visible assimilation in the Georgian language and culture.[3] The Georgian Jews were considered ethnically and culturally distinct from neighboring Mountain Jews.[4] They were also traditionally a highly separate group from the Ashkenazi Jews in Georgia, who arrived following the Russian annexation of Georgia.

As a result of a major emigration wave in the 1990s, the vast majority of Georgian Jews now live in Israel, with the world's largest community living in the city of Ashdod.The Georgian Jews traditionally lived separately, not only from the surrounding Georgian people, but also from the Ashkenazi Jews in Tbilisi, who had different practices and language.

The community, which numbered about 80,000 as recently as the 1970s, has largely emigrated to Israel, the United States, the Russian Federation and Belgium (in Antwerp). As of 2004, only about 13,000 Georgian Jews remained in Georgia. According to the 2002 First General National Census of Georgia, there are 3,541 Jewish believers in the country.[5] For example, the Lezgishvili branch of Georgian Jews have families in Israel, Moscow, Baku, Düsseldorf, and Cleveland, Ohio (US). Several hundred Georgian Jewish families live in the New York tri-state area, particularly in New York City and Long Island.

Answer:

C D E F

Step-by-step explanation:

got it wrong and told me the answer

Replacing x with 0.75 in x 2 will give you an answer of 0.5625

TRUE OR FALSE.

Answers

Answer

TRUE

MARK AS BRAINLIEST

NEED HELP ASAP PLEASE HELP

Answers

Answer:

the second one or b. :)

Step-by-step explanation:

Researchers interviewed street prostitutes in Canada and the United States. The mean age of the 100 Canadian prostitutes upon entering prostitution was 19 with a standard deviation of seven. The mean age of the 130 United States prostitutes upon entering prostitution was 21 with a standard deviation of nine. Is the mean age of entering prostitution in Canada lower than the mean age in the United States

Answers

Answer:

Step-by-step explanation:

The null and the alternative hypothesis is:

[tex]H_o: \mu_c \ge \mu_{us}[/tex]

[tex]H_a : \mu_c < \mu_{us}[/tex]

The t- student test statistics can be computed as:

[tex]t = \dfrac{x_c- x_{us}}{\sqrt{\dfrac{\sigma_c^2}{n_c} + \dfrac{\sigma_{us}^2}{n_{us}} }}[/tex]

[tex]t = \dfrac{19- 21}{\sqrt{\dfrac{7^2}{100} + \dfrac{8^2}{130} }}[/tex]

t = -2.017  

degree of freedom = (n₁ - 1) + (n₂ - 1)  

= (100 - 1) + (130 - 1)

= 228

Using the data of t-value and degree of freedom;  

The P-value = -0.224

Decision rule: Do not reject the null hypothesis if the p-value is greater than ∝(0.01)

Conclusion: We reject the null hypothesis since the p-value is less than ∝.

Therefore, there is enough evidence to conclude that the mean age of entering prostitution in Canada is lower than that of the United States.

Estelle has 6 liters of juice. If she pours 0.25 liters into each glass, how many glasses of juice will she make?

Answers

Answer:

24 glasses

Step-by-step explanation:

We are given that

Estelle has juice=6 liters

She pours juice in one glass=0.25 L

We have to find the number of glasses of juice made by her.

Using unitary method

0.25 L juice pour in 1 glass

1 L juice pour in 1/0.25 glasses

6 liters  juice pour in glasses=[tex]\frac{1}{0.25}\times 6[/tex]

6 liters  juice pour in 24 glasses

Hence, she will make 24 glasses of juice.

Please help !! Thank youuu

Answers

Answer:

System A is A System B is B

Step-by-step explanation:

System A is A and system B is B

Let u= -9, 4 , v= 8, -5 . find u-v.

a- -1, -1

b- -13, 13

c- -17, 9

d- -4, -4

Answers

Answer:

C. -17, 9

Step-by-step explanation:

u = -9, 4

v = 8, -5

u - v

= (-9, 4) - (8, -5)

= (-9 - 8), (4 - (-5))

= -17, 9

How do I solve this......?

Answers

Answer:

1.0.87

2.87/100

3.25%

4.0.25

5.35%

6.7/20

Step-by-step explanation:

HELP DICE MATH EASY 12 POINTS

Answers

Answer:

1/6

Step-by-step explanation:

There’s 6 sides on a die

1/6 hopes this helps you

How to find the coefficients

Answers

Answer:

A number used to multiply a variable. Example: 6z means 6 times z, and "z" is a variable, so 6 is a coefficient. Variables with no number have a coefficient of 1.

Step-by-step explanation:

9. A dust mite is about 250 microns long. One micron equals 0.001 millimeter. How long is a
dust mite in millimeters?

Answers

Answer:

0.250

Step-by-step explanation:

0.001x250=0.250

Length of dust mite in millimeters is 0.250

What is measurement?

Measurement is the act of determining size, or quantity.

Given, A dust mite is about 250 microns long

Since one micron equals 0.001 millimeter

So 0.001x250=0.250

Hence length of dust mite in millimeters is 0.250

Learn more about measurement

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NEED THIS ASAP Solve each absolute value by expression

1) [x+8]=16

Answers

[tex]x + 8= 16[/tex]

[tex] \rightarrow \: x = 16 - 8[/tex]

[tex] \rightarrow \: x = 8[/tex]

Answer:

x = 8 or x = -24

Step-by-step explanation:

Hello!

An absolute value expression has two cases, a positive and a negative.

Therefore, we have to solve two equations here:

x + 8 = 16x + 8 = -16

1) x + 8 = 16x = 8

2)x + 8 = -16x = -24

The two solutions are x = 8 and x = -24.

h(t)=(49+4.9t)(10-t) solve for t

Answers

Answer:

t = ±10

Step-by-step explanation:

after using the FOIL method you have the following:

490 + 49t - 49t - 4.9t²

middle two terms zero out

h(t)= -4.9t² + 490

if you multiply by -10 you can get perfect squares

h(t) = 49t² - 4900 which has two factors:  (7t + 70)(7t - 70)

now set each factor equal to zero and solve:

7t + 70 = 0                      

7t = -70

t = -10

7t - 70 = 0                      

7t = 70

t = 10

How many years will it take James to recover his investment?

Answers

I don’t think anyone knows this one not even James

The diameter of a circular flower bed is 12 meters. What is the area of the flower bed? (Use 3.14 for pi)

Answers

Answer:

Step-by-step explanation:

diameter = 12 m so

the radius is d/2=12/2=6 m

A = pi*r² = 3.14 *6² = 113.04 m²

Answer:

113.04

Step-by-step explanation:

A soda company conducted a taste test for three different kinds of soda that it makes.
It surveyed 200 people in each age group about their favorite flavor and the results are shown in
the table below.
Age
Soda A Soda B Soda C
Under 20
30
44
126
20 to 39
67
75
58
40 to 59
88
78
34
60 and over
141
49
10
10.
What is the probability that a participant chose Soda C or was under 20 years old?
Rounded to the nearest tenth
35.2%
37.8%
52.5%
50%

Answers

Answer:

Step-by-step explanation:

35percent was yonger

Which ordered pair is NOT included in a graph of y=x+5?

Answers

I need the picture to answer it

I don't understand please help ​

Answers

Answer:

Step-by-step explanation:

the average rate of change is the same as

the slope of a line m = (y2-y1)/(x2-x1)

to find if is positive of negative look at the line between the years given (for example between 1930 and 1940)

if from left to right the line goes downward the rate of change is negative

if from left to right the line goes upward the rate of change is positive

it takes 30 kids 6 hours to build a man sized Sand Castle. how many kids were there if the same game took only two-and-a-half hours ​

Answers

Answer:

There were 72 kids there.

Step-by-step explanation:

This question can be solved using proportions, by a rule of three.

The number of kids and time are inversely proportional, that is, if we increase the number of kids to build the castle, the time it takes will decrease. This means that to solve the rule of three, instead of applying cross multiplication, we apply line multiplication.

We have that:

30 kids - 6 hours

x kids - 2.5 hours.

Applying line multiplication

[tex]2.5x = 30*6[/tex]

[tex]x = \frac{180}{2.5}[/tex]

[tex]x = 72[/tex]

There were 72 kids there.

Heidi earns 3% commission on jewelry she sells each week last week she sold 5,000 worth of jewelry how much did she make in commission. ​

Answers

3% commission of 5000 = $150

Jules wants to put a fence around his backyard. What is the perimeter of his backyard?​

Answers

I need more information to solve.

Which expression does not equal to the others?
A
567 /1,000
-------------------
B
56.7 / 10,000
----------------------
C
5.67 /10
---------------------
D
56.7 /100

Answers

Answer:

B is not equal to the others

Step-by-step explanation:

I need help on this question please it would mean a lot.!

Answers

Answer:

A

E

F

Step-by-step explanation:

These fractions divided equal repeating decimals.

Hope it helps and is correct!

Which expression can be used to determine how far around a rider has traveled after the Ferris wheel has gone around 8 times?

ANSWER FAST PLEASE

Answers

Answer:

Its A

Step-by-step explanation:

But don't believe me this is wrong

Need help asap will give brainliest

Answers

Answer:

option a is not correct there are only 2 points

Answer:

option a ...............

A hot air ballon is descending at a rate of 100 feet per minute. After 6 minutes, the hot air ballon is 200 feet above the ground.

Answers

Answer:

800 feet i think but is this the full question

Step-by-step explanation:

Whole page for 81! Good luck!

Answers

Answer:

Prime number: A prime number has factor of only 1 and itself.

Ex: 3: 1 and 3 are the only ways to compose 3.

A whole number that has factors other than 1 and itself is called a composite number.

Ex: 8: the factors of 8 include 1,2,4,8

Circle 5,7,2,19,3,11

Box 18,20,22,16,15,30,26,38,45,10,21,6,14

To determine the prime factorization of a number, you must break down a number into its factors. (im not sure?)

Continute until all of the factors are (im not sure)

Prime factorization is written exponential form (im not quite sure)

30= 2x3x5

30= 2^1 3^1 5^1

24=2 × 2 × 2 × 3

24= 2^3 x 3

sorry idrk if they are all right

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