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3 years ago

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A car is traveling south at a speed of 69 miles per hour and then begins traveling west but continues traveling at the same spee

d. Which of the following has changed?
A. velocity
B. gravity
C. mass
D. speed

1 answer:

alexandr1967 [171]3 years ago

8 0

Velocity
Because velocity is speed with direction. In this scenario, the speed has not changed, but the direction did.

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What is the role of neutrons in an atom?

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Hihi!

The correct answer is B) <span>neutron keep protons apart so they don’t repel
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I hope I helped!
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A short current element dl⃗ = (0.500 mm)j^ carries a current of 5.40 A in the same direction as dl⃗ . Point P is located at r⃗ =

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Answer:

The magnetic field along x axis is

$B_{x}=1.670\times10^{-10}\ T$

The magnetic field along y axis is zero.

The magnetic field along z axis is

$B_{z}=3.484\times10^{-10}\ T$

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Given that,

Length of the current element $dl=(0.5\times10^{-3})j$

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$B=\dfrac{\mu_{0}}{4\pi}\timesI\times\dfrac{\vec{dl}\times\vec{r}}{|\vec{r}|^3}$

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$B=10^{-7}\times5.40\times\dfrac{(0.5\times10^{-3})\times(-0.730)i+(0.390)k}{(0.827)^3}$

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$\vec{dl}\times\vec{r}=(0.5\times10^{-3})\times(-0.730)i+(0.390)k$

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$B=1.670\times10^{-10}i+3.484\times10^{-10}k$

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2 years ago

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Answer:

Atoms of tellurium (Te) have the greatest average number of neutrons equal to 76.

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In the periodic table, Elements are represented with their respected symbols. Above the symbol is the elements atomic number which is equal to the number of protons in each atom. Below the symbol is the mass number of that element which is roughly equal to the sum of neutrons and protons of that atom.

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Number of neutrons = mass number - atomic number

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Number of neutrons = 69

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Number of neutrons = mass number - atomic number = 122 - 51

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Number of neutrons = mass number - atomic number = 128 - 52

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Mass number = 127

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Number of neutrons = 74

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Answer:

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A law just states a finding will not explain it.

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