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White raven [17]

3 years ago

14

25 points whoever actually ANSWERS the question CORRECTLY

1 answer:

guapka [62]3 years ago

5 0

Answer:

D. The frequency is not affected as the volume of sound increases

Explanation:

Volume of the sound is defined by the amplitude of the wave or how loud a sound is whereas Frequency is basically the pitch of the sound and is inversely proportional to the wavelength . Increasing frequency will increase the pitch of the sound without affecting it's volume.

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What energy is present when a magnet is moving?

Vitek1552 [10]

Answer:

kinetic energy is when an object is moving

6 0

3 years ago

Consider an old-fashion bicycle with a small wheel of radius 0.17 m and a large wheel of radius 0.92 m. Suppose the rider starts

Gala2k [10]

Answer:

10259.6 m

Explanation:

We are given that

Radius of small wheel,r=0.17 m

Radius of large wheel,r'=0.92 m

Initial velocity,u=0

Time,t=2.7 minutes=162 s

1 min=60 s

Velocity,v=10m/s

Time,t'=13.7 minutes=822 s

Time,t''=4.1 minutes=246 s

$v=u+at$

Substitute the values

$10=0+162a=162a$

$a=\frac{10}{162}=0.0617m/s^2$

$s=ut+\frac{1}{2}at^2$

Substitute the values

$s=\frac{1}{2}(0.0617)(162)^2=809.6 m$

$s'=vt'=10\times 822=8220 m$

$a'=\frac{v}{t''}=\frac{10}{246}$

$s''=\frac{1}{2}a't''^2=\frac{1}{2}\times \frac{10}{246}(246)^2=1230 m$

Total distance traveled by rider=s+s'+s''=809.6+8220+1230=10259.6 m

6 0

4 years ago

Read 2 more answers

A benefit to applying SQRW to your reading is faster reading abilities. Please select the best answer from the choices provided

svetoff [14.1K]

Answer:This would be B

Explanation:

5 0

3 years ago

Read 2 more answers

What is a force that resist the motion of one force over another

Deffense [45]

Answer:

Friction is a surface force that opposes relative motion.

7 0

4 years ago

Read 2 more answers

Help please thank you whoever helps

Delicious77 [7]

Answer:

24a. WX, XW

24b. XY

24c. WV

24d. UV, VU

24e. XY, YX

24f. YX

24g. VW

24h. YZ, ZY

24i. VW, WV

24j. WX

25a. ≈ 20°C

25b. ≈ 290°C

25c. ≈ 20°C

25d. ≈ 290°C

Explanation:

Let's look at the graph and see what phase changes happen as we go from U to Z.

UV: the substance is a solid. As heat is added, temperature increases.

VW: the solid begins to melt. The temperature stays constant as the combination of solid and liquid becomes more and more liquid.

WX: the solid is done melting, and there's only liquid now. As heat is added, temperature increases.

XY: the liquid begins to boil. The temperature stays constant as the combination of liquid and gas becomes more and more gas.

YZ: the liquid is done boiling, and there's only gas now. As heat is added, temperature increases.

If we reverse the direction, YX represents condensation instead of boiling, and WV represents freezing instead of melting.

Kinetic energy of molecules increases with temperature. The greatest increase in temperature is also the greatest increase in kinetic energy.

8 0

3 years ago