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3 years ago

Helpppppppppppppppp......

Physics

1 answer:

Debora [2.8K]3 years ago

8 0

Answer:

12000 m

Explanation:

hope it helped!!!

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Harry and Sally are sitting on opposite sides of a circus tent when an elephant trumpets a loud blast. If Harry experiences a so

FromTheMoon [43]

To solve this problem we will start from the definition of the decibels which refers to the log relationship of the intensities, mathematically each decibel of the people can be described as follows

$dB_1 = 10log(\frac{I_1}{I_o})$

$dB_2 = 10log(\frac{I_2}{I_o})$

$dB_1 - dB_2 = 10log(\frac{I_1}{I_2})$

$\frac{67-45}{10} = log(\frac{I_1}{I_2})$

$log(\frac{I_1}{I_2}) = \frac{11}{5}$

For properties of the logarithm then we have that,

$\frac{I_1}{I_2} = 10^{11/5}$

$\frac{I_1}{I_2} = 158.48$

We have the relation

$\frac{r_2^2}{r_1^2} = 158.48$

$\frac{r_2}{r_1} = \sqrt{158.48}$

$\frac{r_2}{r_1} = 12.58$

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3 years ago

Keaton is asked to solve the following physics problem:

RideAnS [48]

Answer:

The answer is C "think about the problem first, systematically consider all factors, and form a hypothesis"

Explanation:

In physics there is some basic fomula that sir Isacc Newton proposed under the topic of motion. The three formulas are below;

1) v=u+at

2)v^2=u^2+2as

3)s=ut+(1/2)(at^2)

the variables are explained below;

u= initial velocity of the body

a=acceleration/Speed of the body

t= time taken by the body while travelling

s= displacement of the body.

Therefore to solve keatons problem, the factors(variables) in the formulas above need to be systematically considered. Since the ball was dropped from the top of the building, the initial velocity is 0 because the body was at rest. Also the acceleration will be acceleration due to gravity (9.8m/s^2)

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4 years ago

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut e

WARRIOR [948]

Here is the answer of a tutor

Take a look.

$\sqrt[2]{24+5}$

8 0

1 year ago

18. A net force of 1.0N acts on a 4.0-kg object, initially at rest, for 4.0 seconds. What is the distance the object moves durin

hjlf

Acceleration = force/mass
1/4
s=ut+1/2at^2
0*4+1/2*1/4*4^2
1/2*1/4*16
1/2*4
=2

6 0

4 years ago

Read 2 more answers

A .71-kg billiard ball moving at 2.5 m/s in the x-direction strikes a stationary ball of the same mass. After the collision, the

Finger [1]

After the collision, the momentum didn't change, so the total momentum in x and y are the same as the initial.

The x component was calculated by subtracting the initial momentum (total) minus the momentum of the first ball after the collision

In the y component, as at the beginning, the total momentum was 0 in this axis, the sum of both the first and struck ball has to be the same in opposite directions. In other words, both have the same magnitude but in opposite directions

$\begin{gathered} Py=0.71kg\cdot2.17\cdot sin(30) \\ Py=0.77kg\cdot m/s \end{gathered}$

This is for both balls after the collision, but one goes in a positive and the other in a negative direction.

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1 year ago