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Tatiana [17]
3 years ago
5

Convert 41.3 kilocalories into joules.

Physics
1 answer:
mihalych1998 [28]3 years ago
6 0

Answer:172799.2

Explanation:

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The change in momentum of an object equals the impulse applied to it
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Why doesnt food have energy
Nataly_w [17]
Food has calories which feeds your bones in your body from eating away your muscles, it doesn’t have “energy” on the other hand pop and drinks do.
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In order to create a charged object, you need to ________.
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In order to create a charged object you need to transfer electrons either away or to the object by induction, conduction, or friction

Induction is without contact(like bringing a charged object to a electroscope charges the leaves at the bottom)
Conduction is with contact(like the previous answer, wore touching transfers the charge from a source to the object)
Friction(rubbing a balloon on wool)

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2 years ago
john is using a pulley to lift the sail on his sailboat. the sail weighs 150N and he must lift it at 4.0m. how much work must be
gogolik [260]

The work done on the sail is 600 J

Explanation:

The work done to lift the sail is equal to the gain in gravitational potential energy of the sail, therefore is:

W=mg\Delta h

where

m is the mass of the sail

g is the acceleration of gravity

(mg) is the weight of the sail

\Delta h is the change in height of the sail

In this problem we have

mg = 150 N (weight)

\Delta h = 4.0 m

Substituting, we find the work done:

W=(150)(4.0)=600 J

Learn more about work:

brainly.com/question/6763771

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5 0
3 years ago
Which pair of variables defines motion?
masha68 [24]

Answer: position (x) and time (t)

Explanation:

A body is said to be in motion when its position changes with time with respect to a stationary observer.

Following are the types of motion:

<u>Uniform motion</u>: When equal amount of distance is covered in equal intervals of time.

<u>Non-Uniform motion</u>: When unequal amount of distance is covered in equal intervals of time.

Motion can be of the following types as well:

<u>Rectilinear motion</u>: when object moves in a straight line.

<u>Circular motion</u>: when object moves in a curved path.

<u>Periodic motion</u>: when motion repeats itself in fixed intervals of time.

Thus, in order to define motion, only two variables are required: position and time. Measuring these variables can determine whether the object is in motion or not and the type of motion.

5 0
3 years ago
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