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Sloan [31]
3 years ago
15

HELP!!! 20 POINTS!! TRUE OR FALSE??

Physics
2 answers:
ki77a [65]3 years ago
6 0

Answer:

It might be true

Explanation:

gladu [14]3 years ago
5 0

Answer:

its  FALSE  i think

Explanation:

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A 1.0-mm-diameter ball bearing has 2.0 * 109 excess electrons. what is the ball bearing's potential?
Aleks04 [339]

Bearing potential of Ball= 5760 V

Explanation:

the electric potential is given by

V=\frac{K Q}{r}

Q= electrostatic constant= 9 x 10⁹ Nm²/C

Q= charge= n e

n= number of electrons= 2 x 10⁹

e= charge of electron=-1.6 x 10⁻¹⁹ C

so Q=2 x 10⁹ (-1.6 x 10⁻¹⁹ )

Q= -3. 2 x 10⁻¹⁰ C

r= radius of sphere=1/2 mm= 0.0005 m

V=\frac{9\times10^{9}\times(-3.2\times10^{-10)}}{0.0005}

V= 5760 volt

4 0
4 years ago
Explain Kepler's laws
cupoosta [38]
Kepler's three laws of planetary motion can be stated as follows: (1) All planets move about the Sun in elliptical orbits, having the Sun as one of the foci. (2) A radius vector joining any planet to the Sun sweeps out equal areas in equal lengths of time.
7 0
3 years ago
Read 2 more answers
Solve for variable in each figure below
Karolina [17]
Since this is definitely a RIGHT triangle (the little square in the corner),
the hypotenuse is 15, 'h' is the side opposite the 38-degree angle, and

      sin(38°)  =  h / 15

Multiply each side by 15:     h = 15 sin(38°)

                                                =  15 (0.616)

                                             h  =    9.235  
8 0
3 years ago
A bullet with a mass of 5.00 x 10^-3 kg is loaded into a gun. The loaded gun has a mass of 0.52 kg. The bullet is fired, causing
beks73 [17]
For the answer to the question above,
 220 m/s 
<span>mass of the bullet * velocity of the bullet = mass of the gun * velocity of the gun </span>
<span>0.005 kg * v = 0.52 kg * 2.1 m/s </span>
<span>-> v = (0.52kg * 2.1 m/s) / 0.005 kg = 218.4 m/s 
</span>I hope my answer helped you. Have a nice day!
3 0
4 years ago
Sunshine Corporation is expected to pay a dividend of $1.50 in the upcoming year. Dividends are expected to grow at the rate of
grigory [225]

Answer:

$25

Explanation:

The computation of the intrinsic value of the stock is shown below:

As we know that

Intrinsic value or Price = Dividend ÷ (Cost of equity - growth rate)

where,

Cost of equity or ke  is

= Risk free rate of return  + beta × (Market rate of return - risk free rate of return)

= 6% + 0.75 × (14% - 6%)

= 12 %

So the intrinsic value is

= $1.50 ÷ (12% - 6%)

= $25

7 0
3 years ago
Read 2 more answers
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