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3 years ago

Two cars each have a mass of 1050 kg. If the gravitational force between

Physics

2 answers:

Cloud [144]3 years ago

7 0

Answer: D.

Explanation:

d = ± √ G m 1 m 2 /F

Because distance cannot be negative there it goes:

d = √ G m 1 m 2 /F

d = √ 6.67 ⋅ 10 − 11 ⋅ 1050 ⋅ 1050 2.27 ⋅ 10 − 7

d = √ 0.0000735 2.27 ⋅ 10 − 7

d = √ 3239504.405

d ≈ 1799.86 m = 18m

guapka [62]3 years ago

7 0

Answer:

18 m

Explanation:

Aye pex... its very painful

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A 120-V rms voltage at 60.0 Hz is applied across an inductor, capacitor and a 100- resistor in series. If the maximum value of t

Alex787 [66]

Answer:

$I_{rms}$ = 1.132 A

Explanation:

Given that:

A 120-V rms voltage at 60.0 Hz which applied across an inductor, capacitor and a 100- resistor in series.

If the maximum value of the current in this circuit $I_{max}$ = 1.60 A

what is the rms value of the current in this circuit i.e the $I_{rms}$ = ????

The relation between $I_{max}$ and $I_{rms}$ can be expressed by the formula:

$I_{max}$ = $\sqrt{2 * I_{rms}}$

1.60 = 1.414 * $I_{rms}$

$I_{rms}$ = $\frac{1.60}{1.414}$

$I_{rms}$ = 1.132 A

Thus, the value of the current this circuit = 1.132 A

3 0

4 years ago

Read 2 more answers

Determine the work done by 2. 00 kg of water when it is all boiled to steam at 100 ∘c. Assume a constant pressure of 1. 00 atm.

neonofarm [45]

The work done by the water at the constant pressure is $-4.52 \times 10^6 \ J$ .

<h3>Heat required to boil the water</h3>

The heat required to boil the water is calculated as follows;

$Q = mL_v\\\\$

where;

$L_v$ is the heat of vaporization of water = 22.6 x 10⁵ J/kg
m is mass of water

$Q = 2 \times 22.6 \times 10^5\\\\Q = 4.52 \times 10^6 \ J$

<h3>Work done by the water</h3>

The work done by the water at the constant pressure is equal to the heat gained by the water.

$W = - \Delta H\\\\W = -4.52 \times 10^6 \ J$ .

Learn more about first law of thermodynamics here: brainly.com/question/2965070

4 0

3 years ago

Mrs. Waid drives her car up Route 8 at 80mph. If her car weighs 2500 lbs,

Shtirlitz [24]

Answer:

It have 1.359 joule kinetic energy.

Explanation:

Kinetic energy is defined as the energy of any object due to its state of motion.
Mathematically kinetic energy can be calculated as:

K.E = $\frac{1}{2}$ $mv^{2}$ ...........................equation 1

where,

m= mass of object

v= velocity of that moving object

In the above problem;

mass= 2500 lbs = $5511.56$ kg.

velocity= 80mph= $\frac{80}{60*60}$ $m/s$ = $0.0222$ $m/s$ .

Substituting the values in equation 1, we get;

K.E= $\frac{1}{2}$ * $5511.56$ * $0.0222^{2}$

K.E= $1.359 joule.$

7 0

3 years ago

Red light of wavelength 633 nm from a helium-neon laser passes through a slit 0.390 mm wide. The diffraction pattern is observed

pashok25 [27]

Answer:

Y = 5.03 x 10⁻³ m = 5.03 mm

Explanation:

Using Young's Double-slit formula:

$Y = \frac{\lambda L}{d}$

where,

Y = Fringe Spacing = Width of bright fringe = ?

λ = wavelength = 633 nm = 6.33 x 10⁻⁷ m

L = Screen distance = 3.1 m

d = slit width = 0.39 mm = 3.9 x 10⁻⁴ m

Therefore,

$Y = \frac{(6.33\ x\ 10^{-7}\ m)(3.1\ m)}{3.9\ x\ 10^{-4}\ m}$

8 0

3 years ago

Is a spectral line with wavelength 656.5 nm seen in the absorption spectrum of hydrogen atoms?

Karo-lina-s [1.5K]

Yes. Since the wavelength of the red line in the Hydrogen spectrum is 656.5 nanometer. This confirms the possibility of seeing the spectral line with the same wavelength in the absorption spectrum of hydrogen atoms. The Hydrogen spectrum has the lower limit of 656.5 nm which still includes 656.5 nm in the range.

5 0

3 years ago