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hjlf
3 years ago
8

A pitcher throws a 9 kg baseball in a straight line. Its momentum is 2.1 kg-m/s. What is the velocity of the

Mathematics
1 answer:
Zina [86]3 years ago
3 0

Answer:

0.23\:\mathrm{m/s}

Step-by-step explanation:

The momentum of an object is given by p=mv, where m is the mass of the object and v is the velocity of the object.

What we're given:

  • object's mass m
  • object's momentum p

Substituting given values, we can solve for v:

2.1=9v,\\v=\frac{2.1}{9}\approx \boxed{0.23\:\mathrm{m/s}}

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Find the measurement of angle B, if a = 34 and c = 87<br> С<br> a<br> b
melisa1 [442]
A = 34°
C = 87°
B = 34°

Answer:
B is 34° because its a right triangle (90, 45, 45) so < A and < B are equals.
5 0
3 years ago
Fred flips a coin, spins the spinner, and rolls a standard number cube. Find the probability that the coin will show tails, the
Inessa05 [86]

Answer:

The probability that the coin will show tails, the spinner will land on yellow or green (out of yellow, green, blue), and the cube will show a three is \frac{4}{3}  

Step-by-step explanation:

Given : Fred flips a coin, spins the spinner, and rolls a standard number cube.

To find : The probability that the coin will show tails, the spinner will land on yellow or green (out of yellow, green, blue), and the cube will show a three ?

Solution :

First we find probability one by one,

1) Flips a coin - Head, Tail

Total number of outcome = 2

Favorable outcome (getting a tail) = 1

Probability that the coin will show tails is P(T)=\frac{1}{2}

2) Spins the spinner - yellow, green, blue

Total number of outcome = 3

Favorable outcome (land on yellow or green) = 2

Probability that the spinner will land on yellow or green P(S)=\frac{2}{3}

3) Rolls a standard number cube - 1,2,3,4,5,6

Total number of outcome = 6

Favorable outcome (show a three) = 1

Probability that the cube will show a three P(C)=\frac{1}{6}

The probability that the coin will show tails, the spinner will land on yellow or green (out of yellow, green, blue), and the cube will show a three is

P=P(T)+P(S)+P(C)

P=\frac{1}{2}+\frac{2}{3}+\frac{1}{6}

P=\frac{3+4+1}{6}

P=\frac{8}{6}

P=\frac{4}{3}

Therefore, The probability that the coin will show tails, the spinner will land on yellow or green (out of yellow, green, blue), and the cube will show a three is \frac{4}{3}

5 0
3 years ago
{[(3x2)+(5+4)x2]-3}x3=
madreJ [45]

Step-by-step explanation:

Changes made to your input should not affect the solution:

(1): "x3"   was replaced by   "x^3".  2 more similar replacement(s).

((3•(x2))+(9•(x2)))-3x3

((3 • (x2)) +  32x2) -  3x3

(3x2 +  32x2) -  3x3

Pull out like factors :

12x2 - 3x3  =   -3x2 • (x - 4)

-3x^2 • (x - 4)

8 0
3 years ago
What is the diameter of a circle with 28.26 as the area
xxTIMURxx [149]

Answer:

6

Step-by-step explanation:

are=A=πr2

28.26/3.14=9

√9=3

3•2=6

3 0
4 years ago
Read 2 more answers
Uh please help me plz plz plz
Dvinal [7]
XY is the correct answer.
8 0
3 years ago
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