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ss7ja [257]
3 years ago
5

Decribe what makes a diamand a mineral

Physics
1 answer:
RUDIKE [14]3 years ago
7 0
Very very very high pressures, very etc high temperatures, varying degrees of "carbon purity"  and a long time make diamonds diamonds. Minerals ? Well, every so often, should you be lucky, or live in South Africa you might come across one. (Let me know if you do).
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The Hubble telescope’s orbit is 5.6 × 105 meters above Earth’s surface. The telescope has a mass of 1.1 × 104 kilograms. Earth e
djverab [1.8K]
The gravitational field is the Force divided by the mass

Call g the gravitational fiel, F the force exerted by the earth and m the mass of the telescope.

g = F / m


g=9.1x10^4 N / 1.1 x 10^4 kg = 8.27 N/kg

Note that the unit N/kg is equivalent to m/s^2

 
8 0
4 years ago
In the form of radioactive decay known as alpha decay, an unstable nucleus emits a helium-atom nucleus, which is called an alpha
trapecia [35]

Answer:

Velocity will be v=4.06\times10^7m/sec

Explanation:

We have given mass of alpha particle m = 4 u =4\times 1.67\times 10^{-27}kg=6.68\times 10^{-27}kg

Charge on alpha particle q=2e=2\times 1.6\times 10^{-19}C=3.2\times 10^{-19}C

Charge on thorium particle =90\times 1.6\times 10^{-19}=144\times 10^{-19}C

Diameter is given as d = 15 fm

So radius r=\frac{d}{2}=\frac{15}{2}=7.5fm=7.5\times 10^{-15}m

Potential energy is given by E=\frac{1}{4\pi \epsilon _0}\frac{q_1q_2}{r}=\frac{Kq_1q_2}{r}=\frac{9\times 10^9\times 144\times 10^{-19}\times 3.2\times 10^{-19}}{7.5\times 10^{-15}}=5.529\times 10^{-12}J

From energy conservation \frac{1}{2}mv^2=5.529\times 10^{-12}

\frac{1}{2}\times 6.68\times 10^{-27}v^2=5.529\times 10^{-12}

v=4.06\times10^7m/sec

6 0
3 years ago
Can someone please put these vocab terms in the right boxes
umka2103 [35]

Conduction:

The handle of a pot becoming too hot to grab as it cooks on the stove.

Grabbing a warm coffee mug to warm your hands.

Putting an ice pack on an injury.

Burning yourself by touching boiling water.

Convection:

An oven that cooks by cycling warm air through the bottom and out the top.

Warm water rising to the surface of the ocean and cooler water sinking.

Cooking popcorn using a microwave.

Radiation:

Heat from a fire warming your hands.

Warm air rising off of the pavement.

Heat from the sun hitting a solar panel.

Hope this helps ☝️☝☝

7 0
4 years ago
5) Quiz - NO links
Olegator [25]
False does not last that long
5 0
3 years ago
What is the weight in pounds of a 7.0 kilogram bowling ball on earth's surface
hodyreva [135]

Gravitational field strength (GFS) on earth =10 N/kg

Weight = GFS x mass
W = 10 x 7
W = 70N
70N = 15.74 pounds
3 0
3 years ago
Read 2 more answers
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