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3 years ago

9

how does the size of objects impact the pull of gravity between Earth and a baseball thrown into the air

2 answers:

Reil [10]3 years ago

3 0

it's how much it weighs and how much force is pushing on it like a egg if i drop it the weigh can cause it to break and how much force the gravity is pushing on it.

attashe74 [19]3 years ago

3 0

The size of an object tossed into the air doesn't matter. The gravitational force on it depends on its mass not its size. Gravity exerts more force on a small rock then on a large styrofoam wiffle ball.

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A 1 800-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.60 m before coming into contact

N76 [4]

Answer:

F = 614913.88 N

Explanation:

We are given;

Mass of pile driver; m = 1800 kg

Height of fall of pole driver; h = 4.6 m

Depth driven into beam; d = 13.6 cm = 0.136 m

Now, from energy equations and applying to this question, we can write that;

Workdone = Change in potential energy

Formula for workdone is; W = F × d

While the average potential energy here is; W = mg(h + d)

Thus;

Fd = mg(h + d)

Where F is the average force exerted by the beam on the pile driver while in bringing it to rest.

Making F the subject, we have;

F = mg(h + d)/d

F = 1800 × 9.81 × (4.6 + 0.136)/0.136

F = 614913.88 N

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3 years ago

Look at the graph below. Which elements together make up seven percent of the Earth’s crust? calcium and iron calcium and sodium

DedPeter [7]

B. Calcium and Sodium
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3 years ago

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masha68 [24]

The car's velocity is. 60 km/hr west.

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3 years ago

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An antibaryon composed of two antiup quarks

Sveta_85 [38]

Answer:

(2) −1 e

Explanation:

A quark is the lightest elementary particles which form hadron such as proton and neutron. A quark has fractional charge.

Up, charm and top quarks have $+\frac{2}{3} e$ charge where as down, strange and bottom quarks have $-\frac{1}{3}e$ charge.

The antiparticle of up quark is antiup quark and has charge $-\frac{2}{3}e$ charge.

The antiparticle of down quark is antidown quark and has charge $+\frac{1}{3}e$ charge.

An antibaryon is composed of two anti-up quark and one anti-down quark.

Net charge of the anti-baryon is:

$2\times (-\frac{2}{3} e)+1\times (+\frac{1}{3})e=-1e$

Thus, antibaryon has -1e charge.

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4 years ago

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Stolb23 [73]

Answer:

C. It triples in magnitude (PLATO)

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4 years ago