4 years ago

Which of the following will be hardest to stop?

2 answers:

7 0

C, elephant since is hard to stop something heavy. Speed can make something hard to stop but weight*speed makes something harder to stop

Dvinal [7]4 years ago

3 0

Answer:OD. a hummingbird moving at 25 mph

Explanation:

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olga_2 [115]

Answer:

The answer is C.

Explanation:

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un resorte de 10cm de longitud recibe una magnitud de fuerza que lo estira hasta medir 15cm ¿cual es la magnitud de la tension u

Ber [7]

Answer: 0.5

Explanation:

The modulus of elasticity (called <em>"alargamiento unitario"</em> in spanish) $\epsilon$ of a spring is given by the following formula:

$\epsilon=\frac{\Delta L}{L}$

Where:

$L=10 cm$ is the original length of the spring

$\Delta L=L_{f}-L$ is the elongation of the spring, being $L_{f}=15 cm$ the length of the spring after a force is applied to it.

$\epsilon=\frac{L_{f}-L}{L}=\frac{15 cm - 10 cm}{10 cm}$

Then:

$\epsilon=0.5$

8 0

4 years ago

A container contains 200g of water at initial temperature of 30°C. An iron nail of mass 200g at temperature of 50°C is immersed

d1i1m1o1n [39]

Answer:

Assuming there is no heat loss to the surrounding.

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Explanation:

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3 years ago

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If the nucleus of an atom contains 12 protons how many electrons are there in a neutral atom why

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For a neutral atom number of electrons equals number of protons, in other for the net charge of the atom to be zero...
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