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Virty [35]
3 years ago
10

A baseball pitcher throws a 0.14 kg ball toward a batter who is 18 m away.

Physics
1 answer:
Olin [163]3 years ago
5 0

Answer:

A. 112 J

Explanation:

KE = ½mv² = ½(0.14)40² = 112 J

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You select a rental package that includes a car with an average consumption of 6.00 liters of fuel per 100 km. Considering that
konstantin123 [22]

7.21 USD.

<h3>Further explanation</h3>

<u>Problem:</u>

  • Given in Europe, the average fuel cost is 1.063 euros/liter.
  • A car with an average consumption of 6.00 liters of fuel per 100 km.

<u>Question: </u>

How much (in US dollars) will we spend properly on fuel on our trip? Express the answer numerically in US dollars to three significant figures.

Let us convert the unit price from the euro to USD. Currently, the exchange rate of 1 euro is 1.13 USD.

\boxed{ \ 1.063 \ euro \times \frac{1.13 \ USD}{1 \ euro} = 1.20119 \ USD \ }

The term euro is crossed out.

After currency conversion, the average fuel cost is 1.20119 USD/liter.

We need 6.00 liters of fuel during the trip.

\boxed{ \ 6.00 \ liters \times \frac{1.20119 \ USD}{1 \ liter} = 7.20714 \ USD \ }

The term liter is crossed out.

We rounded up to three significant figures. Hence, the cost that we will spend on fuel on our trip is as much  \boxed{\boxed{ \ 7.21 \ USD \ }}

<em>Want to follow another way? Let's see.</em>

\boxed{ \ 6.00 \ liters \times \frac{1.063 \ euros}{1 \ liter} = 6.378 \ euro \ }

The term liter is crossed out.

\boxed{ \ 6.378 \ euro \times \frac{1.13 \ USD}{1 \ euro} = 7.20714 \ USD \ }

The term euro is crossed out.

We get a similar result, i.e.,

\boxed{\boxed{ \ 7.21 \ USD \ }}

<h3>Learn more</h3>
  1. The unit conversion factor from cubic-centimeters to cubic-inches brainly.com/question/5009365
  2. How to write in scientific notation brainly.com/question/7263463
  3. Calculating mass based on density and volume brainly.com/question/4053884

Keywords: you select, a rental package, a car with average consumption, 6.00 liters of fuel per 100 km, in Europe, the cost is 1.063 euros/liter, how much, in US dollars, USD, spend, trip, express, numerically, three significant figures, conversion

7 0
4 years ago
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Prove that acceleration due to gravity is independent to the mass of falling object.<br>​
iren2701 [21]

Answer:

The value of acceleration due to gravity is independent of mass of the body.

Explanation:

Let us consider the mass of the object as m and mass of earth as M

Therefore, force between the object and earth would be given by: F = GMm/d²

This force is equal to the weight of the object, i.e. mg

Thus;

mg = GMm/d²

g = GM/d²

Therefore, the value of acceleration due to gravity is independent of mass of the body.

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2 years ago
A skier pushes off the top of a hill with an initial speed of 3.30 m/s. How fast will she be moving after dropping 5.00 meters i
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Answer:

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8 0
3 years ago
A + B + C → D + E
MAVERICK [17]
B) the mass of the reactant equals the mass of the product.
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3 years ago
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Explain why the coin is able to float on top of the water in this glass.
Alex787 [66]

Answer:

Surface tension is the result of water molecules pulling inward with a strong attractive force. This attractive force brings the molecules on the surface of the water close together and causes the surface of the water to be drawn toward the water molecules beneath the surface. Since there are no water molecules above the surface, there are uneven forces. This causes surface tension, allowing the coin to float on the water’s surface.

Explanation:

Brainliest pls

4 0
3 years ago
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