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3 years ago

Gina estimates that her moms truck weighs about 6,000 pounds. How can you write 6,000 using exponents?

Physics

2 answers:

Georgia [21]3 years ago

5 0

6x10^3 six times ten to the third power :)

Nookie1986 [14]3 years ago

5 0

Answer:

$6\times 10^{3} Pounds$

Explanation:

Given that the Gina moms truck weight is 6000 pounds.

And we also know that the 6000 pounds can be written as in the form.

$6000=6\times 10\times 10\times 10$

Further more it can be written as,

$6000Pounds=6\times 10^{3} Pounds$

Therefore the weight of the truck which is 6000 Pounds can be written in exponential form as $6\times 10^{3} Pounds$ .

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alexandr402 [8]

Hi there,
for this question we have:
Signal 2.0 MHz = Emitted so we can call it $f_e$
and we need the Reflected = $f_{r}$
In this question, we have a source which goes to the heart and a reflected which comes back from the heart and we need the speed of the reflected.
So you should know that the speed of reflected is lower than the source(Emitted).
we also know: ΔBeat frequency(max) = 560 Hz = $f_{b}$
so we have:
$f_{e}$ - $f_{r}$ = $f_{b}$
so frequency of Reflected is:
2.0 × 10^6 Hz - 560 Hz = 1.99 × 10^6 Hz = $f_{r}$
now you know that Lambda = v/f
so if we find the lambda with our Emitted then we can find v with the Reflected:
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=> 7.7 × 10^-4m (1.99 × 10^6Hz) = 1532 m/s
so the $v_{max}$ is equal to 1532 m/s :)))
This question is solved by two top teachers as fast as they could :))
I hope this is helpful
have a nice day

8 0

3 years ago

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ANEK [815]

Answer:

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Explanation:

Wave frequency is the number of waves that pass a fixed point in a given amount of time.

The frequency formula is: f=v÷λ, where <em>v</em> is the velocity and <em>λ</em> is the wavelength.

Then replacing with the data of the problem,

f= $\frac{120\frac{m}{s} }{0.7m}$

f=171.43 $\frac{1}{s}$

f=171.43 Hz (because $\frac{1}{s} = Hz$ , 1 hertz equals 1 wave passing a fixed point in 1 second).

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