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2 years ago

What is the best reason for having a strong hypothesis?

Physics

1 answer:

Elena-2011 [213]2 years ago

7 0

Answer:

the answer is C

Explanation:

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Where do people get their energy to turn a wheel??

Vesna [10]

Answer:

from food eaten (i.e contain carnlbohyadrates)

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3 years ago

In a concave mirror, if an object is located between the center of curvature and the focal point, what is the best way to descri

alisha [4.7K]

Light rays travel parallel to each other, no image formed

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3 years ago

Read 2 more answers

A body weights 50 N in air and 45 N when wholly immersed in water calculate (i) the loss in weight of the body in water (ii) the

Lelechka [254]

Answer:

$difference \: in \: weight = 150n - 100n = 50n$

Now,buyantant force

$difference \: in \: weight \: = volume(body) \times density \: of \: water \: \times g$

so;

$50 = {v}^{b} \times 1 \times {10}^{3} \times 9.8m {s}^{2}$

${v}^{b} = \frac{50}{1000 } \times 9.8$

$= \frac{50}{9800}$

$= 0.0051$

Now,

$mass \: in \: air \: = 150n = \frac{150}{9.8kg}$

$density = \frac{weght}{volume}$

$= \frac{150}{0.0051} \times 9.8 \\ x = 3000$

And now,

$specific \: density \: = \frac{density of \: the \: body}{density \: of \: water}$

$= \frac{3000}{1000}$

$= 3$

Hence that,specific density of a given body is 3

please mark me as brainliest, please

3 0

2 years ago

What can be broken down into tiny fundamental subatomic particles?

Nana76 [90]

The correct answer is matter. Matter is a physical substance, so it is that only option provided that can be broken down to the subatomic particle level.

4 0

3 years ago

A rollercoaster car has 2500 J of potential energy and 160 J of

lara31 [8.8K]

Answer:

E_{k2}=2660 [J] kinetic energy.

Explanation:

The energy in the initial state i.e. when the rollercoaster is at the top is equal to the energy in the final state i.e. when it is at the bottom of the hill.

These states can be represented by means of the second equation.

$E_{k1}+E_{p1}=E_{k2}\\160 + 2500 = E_{k2}\\E_{k2}=2660 [J]$

Since the rollercoaster is located in the bottom of the hill where the potential energy level is zero, therefore there is only kinetic energy in the second state.

8 0

3 years ago