3 years ago

Beet or cabbage juice can be used as:

Physics

2 answers:

Liula [17]3 years ago

5 0

bases is wrong I just took the test. im still not sure what the correct answer is but C. is wrong

STatiana [176]3 years ago

4 0

C bases. Have a great day :)

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Rearrange the momentum equation to solve for speed. Show all work.

nasty-shy [4]

Definition: Momentum = (mass) x (speed)

OK. Here we go.
Watch closely:

Divide each side
by 'mass' : <span>Momentum / mass = Speed </span>

Did you follow that ?

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A portable CD player uses two 1.5 volt batteries. if the current in the CD player is 2amps ,what is resistance?

chubhunter [2.5K]

resistance=voltage/current

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3 years ago

A 790kg car moving at 7 m/s takes a turn around a circle with a radius of 20 m. Determined the net force (in Newton’s) acting up

prisoha [69]

1935.5 N is the "net force" acting on a car.

<u>Explanation</u>:

Given that,

Mass of the car is 790 kg.

Velocity of the car is 7 m/s. (v)

It turned around with 20 m. (r)

We know that, Net force = m × a

$\text { Here, acceleration of the car is radial acceleration } a_{\mathrm{rad}}=\frac{v^{2}}{r}$

$\mathrm{a}_{\mathrm{rad}}=\frac{7^{2}}{20}$

$\mathrm{a}_{\mathrm{rad}}=\frac{49}{20}$

$a_{\text {rad }}=2.45 \mathrm{m} / \mathrm{s}^{2}$

Now, Net force = m × a

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Net force = 1935.5 N

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3 years ago