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3 years ago

Communicating results allows scientists to learn from each other's results.

Physics

2 answers:

UNO [17]3 years ago

4 0

Communicating results allows scientists to learn from each other’s results is TRUE

sveta [45]3 years ago

3 0

True, scientists often talk to each other to figure out if their results were similar and what they could have done better.

Although, talking to other scientists does have risks, other scientists could copy your work and further better it.

So, your final answer is TRUE, sorry for the long answer, I needed to have a word count about 20 characters and then I got carried away! lol

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The net force on an object is 200 N. The object accelerates at 10 m/s? What is the mass of the object ?

geniusboy [140]

Answer:

F=200 N

a=10m/s2

F=ma

m=F/a=200/10=20m

Explanation:

3 0

3 years ago

Expectant mothers many times see their unborn child for the first time during an ultrasonic examination. In ultrasonic imaging,

katrin2010 [14]

Answer:

380 kHz

Explanation:

The speed of sound is taken as 1500 m/s

The length of the fetus is 1.6 cm long

The condition is that the wavelength used must be at most 1/4 of the size of the object that is to be imaged.

For this 1.6 cm baby, the wavelength must not exceed

λ = $\frac{1}{4}$ of 1.6 cm = $\frac{1}{4}$ x 1.6 cm = 0.4 cm =

0.4 cm = 0.004 m this is the wavelength of the required ultrasonic sound.

we know that

v = λf

where v is the speed of a wave

λ is the wavelength of the wave

f is the frequency of the wave

f = v/λ

substituting values, we have

f = 1500/0.004 = 375000 Hz

==> 375000/1000 = 375 kHz ≅ 380 kHz

4 0

3 years ago

WILL GIVE BRAINLIEST AND 50 POINTS!

anygoal [31]

The answer would be B because humans cannot see electrons so we visualize the electrons due to the theory

4 0

2 years ago

Read 2 more answers

A small rubber ball is launched by a compressed-air cannon from ground level with an initial speed of 17.3 m/s directly upward.

elena-s [515]

Answer:

h=15.27m

Explanation:

Since at maximum height the vertical velocity must be null it's better to use the formula:

$v_f^2=v_i^2+2ad$

We will use this formula for the vertical direction, choosing the upward direction as the positive one, so we have:

$0=v_i^2+2ah$

$h=-\frac{v_i^2}{2a}$

which for our values is:

$h=-\frac{(17.3m/s)^2}{2(-9.8m/s^2)}=15.27m$

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3 years ago

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Kaylis [27]

A particle released during the fission of uranium-235 is a "Neutron"

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2 years ago