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Pie
3 years ago
15

If a vector that is 3 cm long represents 30 km/h, what velocity does a 5 cm long vector which is drawn using the same scale repr

esent?
Physics
1 answer:
s2008m [1.1K]3 years ago
5 0
That way the 5 cm long vector represents 50 km/h
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What conditions are required for a solar eclipse?
IgorLugansk [536]
The phase of the Moon must be new, and the nodes of the Moon's orbit must be nearly aligned with Earth and the Sun.
5 0
3 years ago
What does increasing the impulse on an object due to its momentum?
allochka39001 [22]

increaskng the impulse also <u>increases </u><u>momentum</u>

7 0
2 years ago
Many chemical reactions release energy. Suppose that at the beginning of a reaction, an electron and proton are separated by 0.1
ludmilkaskok [199]

Answer:

1.189eV

Explanation:

The electric potential energy is the potential energy that results from the Coulomb force and is associated with the configuration of two or more charges. For an electron in the presence of an electric field produced by a proton, the electric potential energy is defined as:

U=\frac{kq_{e}q_{p}}{r}

where  q_{e} is the electron charge, q_{p} is the proton charge, r is the separation distance between the charges and k is the coulomb constant.

Knowing this, we can calculate how much electric potential energy was lost:

\Delta U=U_{f}-U{i}\\\Delta U=\frac{kq_{e}q_{p}}{r_{f}}-\frac{kq_{e}q_{p}}{r_{i}}\\\Delta U=kq_{e}q_{p}(\frac{1}{r_{f}}-\frac{1}{r_{i}})\\\Delta U=(8.99*10^9\frac{Nm^2}{C^2})(-1.60*10^{-19}C)(1.60*10^{-19}C)(\frac{1}{0.105*10^{-9}m}-\frac{1}{0.115*10^{-9}m})\\\Delta U=1.90*10^{-19}J*\frac{6.2415*10^{18}eV}{1J}=1.189eV

5 0
4 years ago
Chocolate milk contains more than one type of component. Therefore, it 1 point
crimeas [40]

Answer:

Homogeneous.

Explanation:

Mixture can be defined as a combination of two or more substances present in varied proportion where each materials are distinct and visibly seen by naked eyes.

In Science, there are two (2) main types of mixture and these are;

I. A homogeneous mixture: it can be defined as any liquid, solid or gaseous mixture which has an identical or uniform composition and properties throughout any given sample of the mixture. In Chemistry, all solutions are considered to be a homogeneous mixture. For example, aqueous hydrogen chloride is a homogeneous mixture of water and hydrogen chloride.

II. A heterogenous mixture: it can be defined as any mixture which has a different or non-uniform composition and properties throughout any given sample of the mixture. This ultimately implies that, the constituents of a heterogenous mixture always remain separate in the sample and as such comprises of two or more phases.

Since the chocolate milk contains more than one type of component. Therefore, it is not a homogeneous substance but a heterogenous substance.

6 0
3 years ago
How many total atoms are in 2CuSO4 A.2 B.6 C.8 D.12​
makvit [3.9K]

That depends on how much of it you have, but it's a hugely enormous gigantic number in even the smallest sample.

You can see from the formula that there are 12 atoms in every molecule of the stuff !

5 0
3 years ago
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