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irakobra [83]
2 years ago
13

What is the symbol of calcium in it's most stable form?

Physics
1 answer:
Licemer1 [7]2 years ago
6 0

Answer:Ca

Explanation:fact according to the periodic table

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Please help
Snezhnost [94]

Answer:

Range = 22.61 m

Explanation:

We can use the formula for the Range in flat ground, given by:

Range=v_i^2\frac{sin(2\theta)}{g}

which for our case renders:

Range=15^2\frac{sin(80^o)}{9.8} \approx 22.61\,\,m

4 0
2 years ago
Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. The
bazaltina [42]

Answer:

The current in the rods is 171.26 A.

Explanation:

Given that,

Length of rod = 0.85 m

Mass of rod = 0.073 kg

Distance d = 8.2\times10^{-3}\ m

The rods carry the same current in the same direction.

We need to calculate the current

I is the current  through each of the wires then the force per unit length on each of them is

Using formula of force

\dfrac{F}{L}=\dfrac{\mu_{0}I^2}{2\pi d}

\dfrac{mg}{L}=\dfrac{\mu_{0}I^2}{2\pi d}

Where, m = mass of rod

l = length of rod

Put the value into the formula

I^2=\dfrac{mgd}{\mu L}

I^2=\dfrac{0.073\times9.8\times8.2\times10^{-3}}{2\times10^{-7}}

I=\sqrt{29331.4}

I=171.26\ A

Hence, The current in the rods is 171.26 A.

5 0
2 years ago
A car is traveling with a velocity of 24.4 m/s. It accelerates at a constant rate of 3.2m/s2. If the acceleration lasts for 5.6
larisa86 [58]

Answer: <em>4</em><em>2</em><em>.</em><em>3</em><em>2</em><em> </em><em>ms-1</em>

Explanation:

v = u+ at

v = 24.4 + ( 3.2×5.6)

v = 42.32 ms-1

6 0
3 years ago
If the total momentum for a system is the same before and after the collision, we say that momentum is conserved. If momentum we
andrew-mc [135]

Answer:

Ratio = 1:1

Explanation:

P_{i} = initial momentum of the system

P_{f} = final momentum of the system

For the momentum to be conserved , final total momentum must be equal to initial total momentum, so we have

P_{f} = P_{i}

Dividing both side by P_{i} , we get

\frac{P_{f}}{P_{i}} = \frac{P_{i}}{P_{i}} \\\frac{P_{f}}{P_{i}} = 1\\

hence

Ratio = 1

5 0
3 years ago
Use the "Law of Reflection" to describe why you cannot see your reflection in a piece<br> of paper.
Anni [7]

Answer:

it does not mirror the image

5 0
3 years ago
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