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nadezda [96]
3 years ago
6

A copper sphere was moving at 40 m/s when it hit another object. This caused all of the KE to be converted into thermal energy f

or the copper sphere. If the specific heat capacity of copper is 387 J/(kg ⋅ C°), what was the increase in temperature? (2 points)
Group of answer choices

0.23 C°

0.81 C°

1.3 C°

2.1 C°
Mathematics
1 answer:
bogdanovich [222]3 years ago
5 0

Answer:

Step-by-step explanation:

.b

i just answered that question

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Margo sold 3 times as many pears as apples in a week. She sold 3,456 apples and pears. How many pears did she sell? Use a letter
klasskru [66]

She sold 2592 pears. If 2592/3=864 then when the total of pears and apples are added it should equal 3,456

2592+864=3456

7 0
3 years ago
Read 2 more answers
the sum of three number is 202, the second is three more than the first number, the third number is three times the second numbe
sertanlavr [38]

Answer:

x = 38

y = 41

z = 123

Step-by-step explanation:

x + y + z = =202

y = x + 3

z = 3y = 3(x + 3) = 3x + 9

<u>x</u> + <u>y</u> + <u>z</u> = <u>x</u> + <u>x + 3</u> + <u>3x + 9</u> = 5x + 12 = 202

5x + 12 = 202

5x = 190

x = 38

y = x + 3 = 41

z = 3y = 123

4 0
3 years ago
Which is the best first step to write this in standard form?
goldenfox [79]

Answer:

<em>Set the function equal to 0</em>

Step-by-step explanation:

<u>Standard Form of the Quadratic Equation</u>

The form

ax^2+bx+c=0

is called the standard form of a quadratic equation. It can be clearly identified the terms of a second-degree polynomial equated to 0.

The equation is given in the form:

2(x-4)^2-3=8

And we need to operate the expression to make it look like a standard form. The first logical step should be to set the function equal to 0 and then start to operate the resulting expression. It can be done by subtracting 8 on both sides of the equation:

2(x-4)^2-3-8=0

Answer: Set the function equal to 0

4 0
3 years ago
What does a dot plot show that a box plot doesn't
Rufina [12.5K]
A dot plot shows each item of numerical data above a number line.
8 0
3 years ago
Help please !! Thank u
leonid [27]

Answer:

parallel = same slope (-2x)

so it's y=-2x + b

let's find b by plugging in 1 for x and 3 for y (the coordinates)

3 = -2*1 + b

3 = -2 + b

5 = b

there you have it:

y = -2x +5

brainliest would really be appropriated (possible when someone else also leaves an answer)

4 0
3 years ago
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