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jek_recluse [69]
3 years ago
5

What do I due about strict teachers

Physics
1 answer:
daser333 [38]3 years ago
4 0

Explanation:

with strict teachers gain evidence if them being bad then report them to the principal.

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The most soaring vocal melody is in Johann Sebastian Bach's Mass in B minor. In one section, the basses, tenors, altos, and sopr
solmaris [256]

Answer:

2.33651226158 m

Explanation:

From the question the required data is as follows

f = Frequency of the initial note = 146.8 Hz

v = Velocity of sound in air = 343 m/s

The wavelength of a wave is given by

\lambda=\dfrac{v}{f}

\Rightarrow \lambda=\dfrac{343}{146.8}

\Rightarrow \lambda=2.33651226158\ m

The wavelength of the initial note is 2.33651226158 m

3 0
3 years ago
If one ammeter read 2a what would the other one read
shusha [124]
After a careful reading of the question, I have concluded that it's a trick question, and that there IS no other one.
4 0
3 years ago
A ball, with a mass of 5.9kg, is thrown directly upwards. It reaches a maximum height of 10m from the point at which it was rele
katrin2010 [14]

Answer:

14 m/s

Explanation:

We can solve the problem by using the law of conservation of energy.

At the beginning, when the ball is thrown from the ground, it has only kinetic energy, which is given by

K=\frac{1}{2}mv^2

where m = 5.9 kg is the mass of the ball and v is its initial speed.

As the ball goes up, its speed decreases, so its kinetic energy decreases and converts into gravitational potential energy. When the ball reaches its maximum height, the speed has become zero, and all the kinetic energy has been converted into gravitational potential energy, given by:

U=mgh

where g = 9.8 m/s^2 is the gravitational acceleration and h = 10 m is the maximum height reached by the ball.

Since we can ignore air resistance, energy must be conserved, so the initial kinetic energy must be equal to the final potential energy of the ball, so we can write:

K=U\\\frac{1}{2}mv^2=mgh

And we can solve the equation to find v, the initial speed of the ball:

v=\sqrt{2gh}=\sqrt{2(9.8 m/s^2)(10 m)}=14 m/s


8 0
3 years ago
Which type of machine is a hand drill ? mechanical machine,compound machine, simple machine , or complex machine ?
Nana76 [90]
A hand drill is a Compound machine.
8 0
3 years ago
Read 2 more answers
What is the speed of an electromagnetic wave with a frequency of 100 mhz as it travels through a vacuum?
SCORPION-xisa [38]

Answer:

The speed of the wave with a frequency 100 mhz will be  3\times 10^{8}m/sec

Explanation:

We have given that frequency of light is 100 mhz

We have to find the speed of light in vaccuum

We know that all electromagnetic waves travels in vaccum wth the same speed as the speed of light

And we know that speed of light is equal to 3\times 10^{8}m/sec

So the speed of the wave with a frequency 100 mhz will be  3\times 10^{8}m/sec

6 0
3 years ago
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