Erica needed to practice dribbling the ball up and down the length of the court. She divided to do it 10 times. How far did she dribble?

Answers

Answer 1

Answer:

Answer:

Explanation:

what is the length of the court. you need the length to answer the question

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A 1200 kg automobile is traveling at a velocity of 100 m/s is its energy potential or kinetic? How much energy does it possess?

Answers

The energy possess is 6,000,000 J

The kinetic energy is a energy by which an object can move and potential energy is a stored energy which depends upon the relative position of various parts of the body.

Given:

The mass of automobile is $m=1200\:\rm kg$ .

The velocity of the automobile is $100\;\rm m/s$ .

How to calculate potential energy and kinetic energy?

Write the formula to calculate the potential energy of the body.

$P.E=mgh$

Since the automobile is on ground so the height $h$ will be 0.

$P.E=1200* 9.81* 0\nP.E=0$

Write the formula to calculate the kinetic energy.

$K.E=(1)/(2)mv^2$

Substitute the value.

$K.E=(1)/(2)* 1200* 100^2\nK.E= 6,000,000 J.$

Learn more about potential energy and kinetic energy follow below link:

brainly.com/question/11879644

Answer:

6,000,000 J (6 million)

Explanation:

Refer to the equations for potential and kinetic energy.

$KE = (1)/(2)mv^(2)\nPE = mgh$

Because the automobile is on the ground (it does not give a height above the ground, therefore we can assume that it is on the ground), height = 0. If you plug in 0 for h in the potential energy equation, we get PE = 0 J.

Therefore, all of the energy is kinetic. Plug in the given information into the kinetic energy equation. M = 1200 kg and v = 100 m/s

$KE = (1)/(2)mv^(2) = (1)/(2)(1200)(100^(2)) = 6,000,000\ J$

A mixed dentition usually consists of

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During childhood a mixed dentition refers to the period when a person has both baby) teeth and permanent (adult) teeth in their mouth. This stage occurs as children start losing their baby teeth and new permanent teeth gradually take their place. It's a part of development that lasts for several years until all the primary teeth are replaced by permanent ones.

If 20 beats are produced within one second, which of the following frequencies could possibly be held by two sound waves traveling through a medium along a common path at the same time? A. 38 Hz and 63 Hz
B. 22 Hz and 42 Hz
C. 47 Hz and 55 Hz
D. 18 Hz and 26 Hz

Answers

Answer:

B. 22 Hz and 42 Hz

Explanation:

The beat is an interference pattern which occurs when two waves of slightly different frequencies meet each other. The beat is heard as a periodic variation, whose frequency (called beat frequency) is equal to the absolute value of the difference between the frequencies of the individual waves:

$f_B = |f_1-f_2|$

In this problem, we are told that 20 beats per second are produced, so the beat frequency is

$f_B = 20 s^(-1) = 20 Hz$

Therefore, we must find the two waves which have a difference in frequency equal to this value, 20 Hz. Let's see each choice:

A. 38 Hz and 63 Hz --> $f_B = |38 Hz-63 Hz|=25 Hz$ --> NO

B. 22 Hz and 42 Hz --> $f_B = |22 Hz-42 Hz|=20 Hz$ --> YES

C. 47 Hz and 55 Hz --> $f_B = |47 Hz-55 Hz|=8 Hz$ --> NO

D. 18 Hz and 26 Hz --> $f_B = |18 Hz-26 Hz|=8 Hz$ --> NO

So, the correct choice is

B. 22 Hz and 42 Hz

The right answer for the question that is being asked and shown above is that: "B. 22 Hz and 42 Hz." If 20 beats are produced within one second, the frequencies that could possibly be held by two sound waves traveling through a medium along a common path at the same time is B. 22 Hz and 42 Hz

Dirty windshields __________.a. reflect light into your eyes, causing glare
b. reflect light away from the vehicle, making the road appear dim
c. will not become fogged
d. none of the above

Answers

The answer : Dirty windshields reflect light into your eyes, causing glare. Dirty glass reflects light, obscuring your view when sunlight or other bright light shines through it. So, it is better to keep your windshield clean, both inside and out.

Most atoms in the Sun exist as:

A)solids
B)liquids
C)plasma

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Most atoms in the Sun exist as Plasma, god bless u

u did it the way i asked. nice lol. its plasma btw

In which state of matter are particles packed tightly together and stay in fixed positions?

Answers

solid..................

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