which graph depicts the path of a projectile​

Which Graph Depicts The Path Of A Projectile

Answers

Answer 1
B is the answer

Step-by-step explanation:

Answer 2

Step-by-step explanation:

When an object is thrown at an angle with horizontal under the action of gravity is called projectile motion and the object which is thrown is called a projectile. The path followed by the object is parabolic. An object when thrown in upward direction, after reaching maximum height it will come back to ground.

Graph (b) shows the path of a projectile.


Related Questions

One angle of an isosceles triangle measures 110°. Which other angles could be in that isosceles triangle

Answers

Answer:

180° - 110° = 70°. 70° represents the other two angles, so it needs to be divided in 2 to get the answer of 35°.

Step-by-step explanation:

Please mark brainliest and have a great day!

At a Kentucky Friend Chicken, a survey showed 2/3 of all people preferred skinless chicken over the regular chicken. If 2,400 people responded to the survey, how many people preferred regular chicken?

Answers

Answer:

800 people

Step-by-step explanation:

We are given in the question that 2/3 of 2400 people preferred skinless chicken.

We have to find the number of people who prefer skinless chicken

[tex]So,\\= \frac{2}{3} *2400\\=1600[/tex]

1600 people prefer skinless chicken,

So,

The number of people who prefer regular chicken = 2400-1600

= 800 people

Answer: kentucky friend chicken? XD

Step-by-step explanation:

What is 3 In 3 - In 9 expressed as a single natural logarithm?
In 3
In 6
In 18
In 27

Answers

Answer:

ln 3

Step-by-step explanation:

Using the rule of logarithms

log [tex]x^{n}[/tex] ⇔ n log x

Given

3 ln 3 - ln 9

= 3 ln 3 - ln 3²

= 3 ln 3 - 2 ln 3

= ln 3

The given logarithmic expression → {3 ln(3) - ln(9)} can be written as ln(3).

What is logarithm?

Logarithm is a quantity representing the power to which a fixed number (the base) must be raised to produce a given number.

Given is the logarithmic expression as -

3 ln(3) - ln(9)

We can solve the expression as -

3 ln(3) - ln(9)

ln(3³) - ln(9)

ln(27) - ln(9)

ln(27/9)

ln (3)

Therefore, the given logarithmic expression → {3 ln(3) - ln(9)} can be written as ln(3).

To solve more questions on logarithmic, visit the link-

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A fantasy board game makes use of four dice. The first is a standard 6-faced die, the second die has 4 faces, and the other two have 10 faces each. If all the dice are thrown together and their combination dictates a certain outcome of the game, how many possible outcomes exist? A. 30 B. 240 C. 2,400 D. 3,000

Answers

Answer: Option C

2,400

Step-by-step explanation:

When launching the first 6-sided die there are 6 possible outcomes

When launching the 4-sided die there are 4 possible outcomes

When throwing each die of 10 faces there are 10 possible outcomes

So if all the dice are thrown together, the number of possible combinations that can be obtained is:

[tex]S = 6 * 4 * 10 * 10\\S = 24 * 100[/tex]

[tex]S = 2400[/tex] possible results

Finally the answer is the option C.

The radius of a circular park is 120 m to the nearest meter what is the circumference of the park?

Answers

Answer:

D. 754 m

Step-by-step explanation:

When calculating the circumference of the circle it ends up as 753.98 but rounded it's 754.

Answer: It’s 754!

Explanation: I also got this one on a test lol

Solve both questions please ❤️❤️

Answers

Answer:

1. y=7.2

2. x=18

Step-by-step explanation:

1. Triangles CMN and CBA are similar triangles (by AAA postulate). Similar triangles have proportional corresponding sides, so

[tex]\dfrac{CM}{CB}=\dfrac{CN}{CA}\\ \\\dfrac{12}{12+y}=\dfrac{10}{10+6}\\ \\12\cdot 16=10\cdot (12+y)\\ \\192=120+10y\\ \\10y=72\\ \\y=7.2[/tex]

2. GK is angle G bisector. Use angle bisector's property:

[tex]\dfrac{GH}{GI}=\dfrac{KH}{KI}\\ \\\dfrac{40}{24}=\dfrac{30}{x}\\ \\40x=24\cdot 30\\ \\4x=24\cdot 3\\ \\x=6\cdot 3=18[/tex]

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Answers

Answer:

8y=-6 or 4y=-3

Step-by-step explanation:

We are given two equations

[tex]x+6y=9\\and\\-x+2y=-15[/tex]

In order to add the equations, the left hand side of one equation will be added to the left hand side of second equation. similarly, the right hand side of first equation will be added to the right hand side of the equation so,

[tex]x+6y+(-x+2y)=9+(-15)\\Combining\ alike\ terms\\x+6y-x+2y=9-15\\6y+2y=-6\\8y=-6\\Can\ also\ be\ written \ as\\4y=-3[/tex]

Answer:

The resultant equation is 8y = -6

Step-by-step explanation:

To get the system of equation that will results from adding the statement, we will follow the steps below;

x+6y=9 -------------------------------------------------------------------------------(1)

-x+2y=-15-------------------------------------------------------------------------------(2)

Adding equation (1) and equation(2), we will have;

(1-1)x + (6+2)y =(9-15)

x variable will go away

8y =-6

The resultant equation is 8y = -6

Ariana and William go shrimping. Ariana caught nine less than five times the number of shrimp that William caught. If C represents the number of shrimp William caught, write the expression that gives the number shrimp the Ariana caught​

Answers

The expression that gives the number of shrimp Ariana caught will be 5C - 9.

What is a linear equation?

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

Ariana and William go shrimping. Ariana caught nine less than five times the number of shrimp that William caught. If C represents the number of shrimp William caught.

Then the expression is given as,

⇒ 5C - 9

The expression that gives the number of shrimp Ariana caught will be 5C - 9.

More about the linear equation link is given below.

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Polygon ABCD is a rectangle. What is its area? Round your answer to the
nearest tenth.
(2, 5)
(-4, 3)
(-3, 0)
(3, 2)

A. 20.0 square units
B. 19.0 square units
C. 25.6 square units
D. 39.7 square units​

Answers

Answer:

Option A. 20.0 square units

Step-by-step explanation:

Let

[tex]A(2, 5),B(-4, 3),C(-3, 0),D(3, 2)[/tex]

Plot the points

see the attached figure

The area of the rectangle is equal to

[tex]A=AB*AD[/tex]

the formula to calculate the distance between two points is equal to

[tex]d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}[/tex]

step 1

Find the distance AB

[tex]A(2, 5),B(-4, 3)[/tex]

substitute in the formula

[tex]AB=\sqrt{(3-5)^{2}+(-4-2)^{2}}[/tex]

[tex]AB=\sqrt{(-2)^{2}+(-6)^{2}}[/tex]

[tex]AB=\sqrt{40}\ units[/tex]

step 2

Find the distance AD

[tex]A(2, 5),D(3, 2)[/tex]

substitute in the formula

[tex]AD=\sqrt{(2-5)^{2}+(3-2)^{2}}[/tex]

[tex]AD=\sqrt{(-3)^{2}+(1)^{2}}[/tex]

[tex]AD=\sqrt{10}\ units[/tex]

step 3

Find the area of rectangle

[tex]A=AB*AD[/tex]

we have

[tex]AB=\sqrt{40}\ units[/tex]

[tex]AD=\sqrt{10}\ units[/tex]

substitute

[tex]A=(\sqrt{40})*(\sqrt{10})[/tex]

[tex]A=20\ units^{2}[/tex]

Given that (5,-8) is on the graph of f(x), find the
corresponding point for the function
f(x+2).
Enter the correct answer.

Answers

Answer:

The corresponding point is (3,-8)

Step-by-step explanation:

we know that

When you add a constant value (k), to the argument of a function, the graph is shifted  k units to the left.

so

In this problem

The rule of the transformation is equal to

f(x) ------> f(x+2)

(x,y) ------> (x-2,y)

(5,-8) -----> (5-2,-8)

(5,-8) -----> (3,-8)

What is the slope of a line that is perpendicular to the line whose equation is 5y+2x=12?

A. 5/2
B. −2/5
C. −5/2
D. 2/5

Answers

Answer:

A

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Rearrange 5y + 2x = 12 into this form

Subtract 2x from both sides

5y = - 2x + 12 ( divide all terms by 5 )

y = - [tex]\frac{2}{5}[/tex] + [tex]\frac{12}{5}[/tex] ← in slope- intercept form

with slope m = - [tex]\frac{2}{5}[/tex]

Given a line with slope m then the slope of a line perpendicular to it is

[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{-\frac{2}{5} }[/tex] = [tex]\frac{5}{2}[/tex] → A

A deli owner keeps track of the to-go orders each day. The results from last Saturday are shown in the given two-way frequency table.

Saturday's To-Go Deli Orders
In Person By Phone Online Total
Pick Up 38 25 31 94
Delivery 35 28 34 97
Total 73 53 65 191

What percent of the to-go orders were delivery orders placed by phone?

A.
14.66%
B.
38.41%
C.
28.87%
D.
52.83%

Answers

Answer:

C

Step-by-step explanation:

Total delivery orders is 97

The number of those placed by phone is 28

So you find the percentage of delivery orders placed by phone by doing 28 divided by 97.

.289 approximately so 28.9%  ( I rounded on my answer)

Choice C is the right answer

A line contains the point 0,2. If the slope of the line is m=-6 write the equation of the line using slope intercept form

Answers

Answer:

y = -6x + 2

Step-by-step explanation:

The slope-intercept form of an equation of a line:

[tex]y=mx+b[/tex]

m - slope

b - y-interept (0, b)

We have the slope m = -6 and the point (0, 2) → b = 2.

Substitute:

y = -6x + 2

If anyone could please help me with this question???I know that you can get three triangles out of the shape.

Answers

Answer:

See below.

Step-by-step explanation:

The triangles are similar because  the angles marked 125 are equal and the sides either side of these angle are in the same ratio:

1.3 / 2.5 = 2.6 /5.

If we are given the length of AE we would find CF from the equation:

1.3 / 2.5 = CF / AE

CF = (1.3 * AE) / 2.5.

What are the x-intercepts of the graph of the function below?

y = x2 + 2x-15

Answers

Answer:

-15

Step-by-step explanation:

the y-intercept would be -15

Answer:

x = - 5, x = 3

Step-by-step explanation:

To find the x- intercepts let y = 0, that is

x² + 2x - 15 = 0

Consider the factors of the constant term (- 15) which sum to give the coefficient of the x- term (+ 2)

The factors are + 5 and - 3, since

5 × - 3 = - 15 and 5 - 3 = + 2, hence

(x + 5)(x - 3) = 0

Equate each factor to zero and solve for x

x + 5 = 0 ⇒ x = - 5

x - 3 = 0 ⇒ x = 3

x- intercepts at (- 5, 0) and (3, 0)

what is the value of n in the simplified expression?
(4k^7)^3 = 4^n • (k^7)^3 = 64k^21?

Answers

Answer:

n = 3

Step-by-step explanation:

[tex](4k^7)^3\ \text{it's equal to}\ 64k^{21}\\\\(4k^7)^3\qquad\text{use}\ (ab)^n=a^nb^n\ \text{and}\ (a^n)^m=a^{nm}\\\\=4^3(k^7)^3=64k^{7\cdot3}=64k^{21}\\\\4^3(k^7)^3=4^n(k^7)^3\Rightarrow n=3[/tex]

The value of n in the simplified expression is 3.

How to simplify an expression?

To simplify an expression approach write an equivalent expression that includes no comparable terms. This means that we will rewrite the expression with the fewest phrases feasible.

What is simplify?

Simplifying means to make it less complicated, clearer, or easier. maths to reduce (an equation, fraction, and many others) to a less difficult form by means of cancellation of commonplace factors, regrouping of phrases in the identical variable, etc.

Learn more about simplifying here: https://brainly.com/question/723406

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A cone has a height of 2.5 inches and a radius of 5 inches. What is the volume of the cone?

Answers

Answer: [tex]65.44\ in^3[/tex]

Step-by-step explanation:

To calculate the volume of a cone you can use this formula:

[tex]V_{(cone)}=\frac{1}{3}\pi r^2h[/tex]

Where "r" is the radius and "h" is the height of the cone.

In this case you know that this cone has a height of 2.5 inches and a radius of 5 inches. Then:

[tex]h=2.5\ in\\r=5\ in[/tex]

Finally, you need to substitute these values into the formula. Then you get that the volume of the cone is:

 [tex]V_{(cone)}=\frac{1}{3}\pi (5\ in)^2(2.5\ in)\\\\V_{(cone)}=65.44\ in^3[/tex]

Tyler knows that the ratio of male to female horses on the farm is 2 to 3. If there are 12 male horses, how many female horses are there?




20 POINTS

Answers

Answer:

18 female horses.

Step-by-step explanation:

By proportion  2 : 3 = 12 : x   where x is the number of female horses.

12 / 2 = x / 3

2x = 3*12 = 36

x = 18.

Find the x coordinate of the point.

Answers

Answer:

x= -17

Step-by-step explanation:

When we have 2 points, we can find the slope using

m = (y2-y1)/(x2-x1)

Substituting what we know

1/5 = (0-3)/(x--2)

1/5 = -3/(x+2)

Using cross products

1*(x+2) = 5*(-3)

x+2 = -15

Subtract 2 from each side

x+2-2 = -15-2

x=-17

What is the slope of the line segment?
a 1/4
b -1/4
c 4
d 4

Answers

to get the slope of any line, we can simply use two points off of it, for this one, say (3,12) and (4,16)

[tex]\bf (\stackrel{x_1}{3}~,~\stackrel{y_1}{12})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{16}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{16-12}{4-3}\implies \cfrac{4}{1}\implies 4[/tex]

Find the sample Standard deviation and the population standard deviation of the data set? 17,37,56,16,12,16,19,45,14,37,21,26,43,46,42

Answers

Answer:

The sample standard deviation is 14.458

The population standard deviation is 13.967

Step-by-step explanation:

* Lets revise the population standard deviation (σ)

1. Work out the Mean (μ) (average of the numbers)

2. Then for each number subtract the Mean and square

   the result  (xi - μ)²

3. Then work out the mean of those squared differences

    [∑(xi - μ)²/N]

4. Take the square root of that (√[∑(xi - μ)²/N]) and to find σ

* Lets revise the sample standard deviation (s)

1. Work out the Mean (x) (average of the numbers)

2. Then for each number subtract the Mean and square

    the result  (xi - x)²

3. Then work out the mean of those squared differences [∑(xi - x)²/N - 1]

4. Take the square root of that (√[∑(xi - x)²/N - 1]) and to find s

* Now lets solve the problem

- The data are 15 numbers

  17 , 37 , 56 , 16 , 12 , 16 , 19 , 45 , 14 , 37 , 21 , 26 , 43 , 46 , 42

∵ x = μ = sum/number

∴ x = μ = (17+37+56+16+12+16+19+45+14+37+21+26+43+46+42)÷15=29.8

- Subtract the mean from each number and square the result

∵ (17 - 29.8)² = 163.84

∵ (37 - 29.8)² = 51.84

∵ (56 - 29.8)² = 686.44

∵ (16 - 29.8)² = 190.44

∵ (12 - 29.8)² = 316.84

∵ (16 - 29.8)² = 190.44

∵ (19 - 29.8)² = 116.64

∵ (45 - 29.8)² = 231.04

∵ (14 - 29.8)² = 249.64

∵ (37 - 29.8)² = 51.84

∵ (21 - 29.8)² = 77.44

∵ (26 - 29.8)² = 14.44

∵ (43 - 29.8)² = 174.24

∵ (46 - 29.8)² = 262.44

∵ (42 - 29.8)² = 148.84

∴ ∑(xi - μ)² = ∑(xi - x)² = 2926.36

∵ N = 15

∴ The sample standard deviation = √[∑(xi - x)²/(N - 1)]

∴ s = √[2926.36/(15 - 1)] = 14.458

∴ The population standard deviation = √[∑(xi - μ)²/N]

∴ σ = √[2926.36/15] = 13.967

Answer:

B

Step-by-step explanation:

Which expression is equivalent to
o ooo​

Answers

Answer:

a

Step-by-step explanation:

becuase you distribute the numbers

By definition of multiplication of powers of the same base we have to put the same base and add the exponents, then, we can rewrite the expression as:

[tex](2 ^ {\frac {1} {2} + \frac {3} {4}}) ^ 2 =\\(2 ^ {\frac {4 + 6} {8}}) ^ 2 =\\(2 ^ {\frac {10} {8}}) ^ 2 =\\(2 ^ {\frac {5} {4}}) ^ 2 =[/tex]

By definition of power properties we have to:

[tex](a ^ n) ^ m = a ^ {n * m}[/tex]

So, we have:

[tex]2 ^ {\frac {10} {4}} =\\2 ^ {\frac {5} {2}} =[/tex]

By definition of properties of powers and roots we have:

[tex]\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}[/tex]

So, the expression is equivalent to:

[tex]2 ^ {\frac {5} {2}} = \sqrt {2 ^ 5}[/tex]

ANswer:

Option B

What are the coordinates of the point shown on the
coordinate plane?
x-coordinate =
y-coordinate =​

Answers

Final answer:

The coordinates of the point are (4, 3), where 4 is the x-coordinate (horizontal direction) and 3 is the y-coordinate (vertical direction).

Explanation:

The coordinates of a point on a Cartesian coordinate system are determined by its horizontal position (x-coordinate) and its vertical position (y-coordinate). Given that the point is on the first coordinate axis (x-axis) and in the (1, 2)th coordinate plane, we understand that the x-coordinate is related to the horizontal direction and the y-coordinate is related to the vertical direction.

In the context of this problem, if the figure on the coordinate plane indicates that the point is 4 units to the right of the origin along the x-axis and 3 units above the origin along the y-axis, then the coordinates of the point are ( extbf{4},  extbf{3}). Here, the convention is that moving to the right of the origin increases the x-coordinate and moving upwards increases the y-coordinate.

Lynn is taking a trip in her car. She spent 387.00 on gasoline and snacks. Lynn spent 35.80 on snacks for the entire trip. Gasoline costs 2.54 per gallon.

How many gallons of gasoline did Lynn purchase on her trip?

Answers

Answer:

138.27 gallons

Step-by-step explanation:

Total cost = snacks + gallons * cost per gallon

387 = 35.80 + g*2.54

Subtract 35.80 from each side

387-35.80 = 35.80-38.50 + g*2.54

351.20=  + g*2.54

Divide by 3.54 on each side

351.20/2.54 = 2.54g/2.54

138.2677165 = g

Rounding to the nearest hundredth

138.27 gallons

Given : Lynn spent 387.00 on gasoline and snacks

Given : Lynn spent 35.80 on snacks for the entire trip

Money spent on gasoline :

Total money spent on gasoline and snacks - Money spent on snacks

[tex]:\implies[/tex]  Money spent on gasoline = 387.00 - 35.80

[tex]:\implies[/tex]  Money spent on gasoline = 351.20

Given : Gasoline costs 2.54 per gallon

[tex]\implies \mathsf{Number\;of\;gallons\;of\;gasoline = \dfrac{Total\;money\;spent\;on\;gasoline}{Cost\;of\;gasoline\;per\;one\;gallon}}[/tex]

[tex]\implies \mathsf{Number\;of\;gallons\;of\;gasoline = \dfrac{351.20}{2.54}}[/tex]

[tex]\implies \mathsf{Number\;of\;gallons\;of\;gasoline = 138.27}[/tex]

Solve the equation for X.
(x - 4) - (x + 7) = 8x please help me solve this somebody I don't understand how​

Answers

Answer:

x = - [tex]\frac{11}{8}[/tex]

Step-by-step explanation:

Given

(x - 4) - (x + 7 ) = 8x

Distribute parenthesis noting second is distributed by - 1

x - 4 - x - 7 = 8x ← simplify left side

- 11 = 8x ( divide both sides by 8 )

x = - [tex]\frac{11}{8}[/tex]

The range of the following relation R {(3,-2), (1, 2), (-1, -4),(-1, 2)} is

A.{-1, 1, 3}
B.{-1, -1, 1, 3} ♡
C.{-4, -2, 2, 2}
D.{-4, -2, 2}

Answers

Answer:

D.{-4, -2, 2}  

Step-by-step explanation:

all y components

same y value are not repeated


What is the measure of arc QR?
26°
52
104
128°

Answers

The answer to this question is option C. 104 °

(Late answer!)

PLEASE HELP ME WITH THIS STUPID QUESTION!!!! WHAT DO I HAVE TO PUT IN THE BOX!! 30pts. Will mark brainliest!!!

Answers

2

-10 and 10 are 10 units from 0 on the number line

Urgent!!!!!!

Chad Roth took out a $9,100 simple interest loan at 10% for 36 months. After 27 payments, the balance is $2,526.85. He pays off the loan when the next payment is due.
a.) What is the CURRENT month's interest?
b.) What is the final payment?

Answers

Answer:

a) Current Interest is $75.8

b) the final payment will be $11,830

Step-by-step explanation:

Principal Amount = $9,100

Interest rate = 10% or 0.1

Time = 36 months = 3 yeras

Balance after 27 payments = $2,526.85

a) What is the CURRENT month's interest?

The formula to find interest is:

Interest = P*r*t

P= Principal

r = Interest rate

t = time in years

Interest = 9100*0.1*3

Total Interest = 2730

As total period is 36 months so, divide total interest by 36

Current Month Interest = 2730/36

Current Month Interest = 75.8

So, current month interest is $75.8

b) What is the final payment?

The formula used will be

A = P(1+r*t)

A = Final amount

r = interest rate

t = time

Putting values:

A = P(1+r*t)

A = 9100*(1+0.1*3)

A = 9100*(1.3)

A = 11,830

So, the final payment will be $11,830

consider the explicit formulas for two sequence ​

Answers

These are the formulas right?.. I hope so, anyways..

- f(n)= 2^(n-1) -1

- g(n)=3n+6  

f(7)=2^{7-1}-1  -  f(7)=2^{6}-1  -  f(7)=64-1  -  f(7) = 63

g(10)=3\X 10+6  -  g(10)=30+6  -  g(10) = 36

= f(7)>g(10)

I hope that it helped..

Answer:

The one above is right.

Step-by-step explanation:

Other Questions
What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml? Padma has written a paper on the effects of the Black Death, a plague that struck Europe in 1347 and killed millions of people. She focused on three major results of the plague: A smaller population after the plague led to higher wages and greater independence for workers. The power of the Catholic Church weakened because so many members had died and others had lost their faith. A lack of farm workers led more people to raise livestock rather than planting crops, changing the European diet.Read her conclusion:It does not seem right to say that an experience as horrifying as the Black Death had any good sides. Still, the changes that followed the plague improved the lives of peasants. People who had previously lived in poverty, forced to work for a single employer, now had higher wages and the freedom to change jobs. Even so, the continent had been devastated and would take many years to recover.Which statement best evaluates her conclusion?A.The conclusion effectively summarizes all the writers main points.B.The conclusion is engaging, but it introduces an unnecessary new idea.C.The conclusion is engaging, but only summarizes one of the writers points.D.The conclusion is engaging but it does not summarize any of the writers main points. what was a significant issue during the 1896 presidential election Which expression best estima18-30 -18-3-18+(-3)18+(-3) Since 9/11, which of these has happened? Europe has abandoned the U.S. Terrorist activity has diminished. More terrorist groups have formed. Iraq's dictator still reigns. If this plastic cup is heated to its meltingpoint, what will eventually happen to allthe particles in the plastic?A. The particles will begin to move enoughthat they slide past each other.B. Bonds will form and the liquid will becomea solid.C. The spaces between the particles will getsmaller.D. The particles will change state and becomea crystalline solid. children of abusive parents often learn to be aggressive by imitating their parents. This illustrates the impact of A barrel ride at an amusement park starts from rest and speeds up to 0.520 rev/sec in 7.26 s. What is the angular acceleration during that time? (Unit = rad/s^2) [OU.01JThe greatest speed with which any physical object moves is 300,000 km/soundsec. Which of the following has a speed of 300,000 km/sec? A.light in waterB.light in vacuumC.sound in air. D. Sound in water What was the sears tower in chicago renamed to? 44. A rescue helicopter is hovering over a person whose boat has sunk. One of the rescuers throws a life preserver straight down to the victim with an initial velocity of 1.40 m/s and observes that it takes 1.8 s to reach the water. (a) List the knowns in this problem. (b) How high above the water was the preserver released? Note that the downdraft of the helicopter reduces the effects of air resistance on the falling life preserver, so that an acceleration equal to that of gravity is reasonable. -2(7a+4b)-6c= Simplify In the passage, Elisa tells the traveling repairman that she doesn't have anythingfor him to fix. Which of the following best describes the tone of the travelingrepairman's response to Elisa?A. HumiliatedB. ExcitedC. PleadingD. Angry A disc initially at rest experiences an angular acceleration of 3.11 rad/s for a time of 15.0 s. What will the angular speed of the disc be at this time, in units of rad/s? Which transformation from the graph of a function f(x) describes the graph of f(x)-1? Compare the strength of the intermolecular forces in solids liquids and gases Niccol Paganini, the Italian violinist, played with great speed and brilliance. He is considered a/an A. amateur. B. conductor. C. patron. D. virtuoso. . A squirrel population lives in an area. Over many years, a river in that area grows wider and stronger, eventually forming a canyon. The squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. This is an example of Factor completely 2x5 + 10x4 - 22x3. Question 1 of 20 :Select the best answer for the question.1. Which objects are scatteredthroughout the galactic halo thatsurrounds the Milky Way?O A. SuperclustersO B. Globular clustersO C. Black holesO D. Magellanic clouds