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krok68 [10]
4 years ago
11

The star can no longer support nuclear fusion because it has exhausted its supply of hydrogen. A. Betelgeuse B. the sun or C. Si

rius
Physics
1 answer:
Orlov [11]4 years ago
7 0
B, because it is the sun and it has nuclear fusion and such
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Calculate the pressure produced by a force of 1500 N acting on an area of 6 m​2​
Aleksandr [31]

Answer:

250 N/m²

Explanation:

Pressure = Force / Area

P = 1500 / 6

P = 250

4 0
3 years ago
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What type of bond forms between atoms with very large differences in<br> electronegativity?
yaroslaw [1]

Answer:

Ionic or electrovalent bond

Explanation:

The electronegativity of an atom determines to what extent an atom would attract an electron towards it. So, they can form combine.

The nature of chemical bonding depends upon the difference between the electronegativity of the combining atoms.

When the electronegativity difference is

                               <  0.4                  -  forms non-polar covalent bonds

                     between  0.4 and 1.7 - polar covalent bonds

                                > 1.7                   - ionic bond

Hence, when there is a large difference between the electronegativity of atoms, it forms ionic bonds.

5 0
3 years ago
Match each word to its definition. current voltage resistance flow of electric charges arrowRight opposition to the flow of elec
lana66690 [7]

current . . . flow of electric charges

voltage . . . stored potential energy at the source of a circuit  

resistance . . . opposition to the flow of electric current

arrowRight . . . a button on the computer keyboard that causes the cursor to move to the right on the screen when pushed

arrowRight . . . a button on the computer keyboard that causes the cursor to move to the right on the screen when pushed

arrowRight . . . a button on the computer keyboard that causes the cursor to move to the right on the screen when pushed

7 0
3 years ago
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A baseball has a mass of 0.145 kg. A professional pitcher throws a baseball 67 mi/h, which is 30.0 m/s. What is the magnitude of
Kamila [148]

The concept of momentum tells us that it is equivalent to the product between the mass and the velocity of the object, that is to say that in general it can be written as

p = mv

Where,

m = mass

v = Velocity

Our values are given as,

m = 0.145kg

v = 67mi/h = 30m/s

Replacing we have that,

p = (0.145)(30)

p = 12.45 kg\cdot m/s

Therefore the magniude of the momentum of the pitched baseball is 12.45 kg\cdot m/s

6 0
3 years ago
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I don’t know what to do
zavuch27 [327]

Answer:

So increasing the voltage increases the charge in direct proportion to the voltage. If the voltage exceeds the capacitors rated voltage, the capacitor may fail due to breakdown of the dielectric between the two plates that make up the capacitor.

Explanation:

A option.

7 0
3 years ago
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