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bagirrra123 [75]
4 years ago
12

When you do positive work on an object, you ______

Physics
2 answers:
guajiro [1.7K]4 years ago
4 0

C. increase the object's energy

gtnhenbr [62]4 years ago
3 0

when you do positive work on an object, you ______  

A. decrease the object's energy

<u>B. keep the object's energy the same </u>

C. increase the object's energy

D. may increase or decrease the object's energy

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A metre rule is used to measure a length. Which reading is shown to the nearest millimetre? A 0.7m B 0.76m C 0.761m D 0.7614m
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Answer:

none

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~both of them show to the nearest metre.

~millimeter has (mm) unit eg 0.7mm

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Which of the following represents a possible magnitude for the force of static friction when Xavier applied 72.1 Newtons of forc
lana66690 [7]

The possible magnitude for the force of static friction on the stationary cart is 72.1 N.

The given parameters:

  • <em>Applied force on the cart, F = 72.1 N</em>

<em />

Based on Newton's second law of motion, the force applied to object is directly proportional to the product of mass and acceleration of the object.

F = ma

Static frictional force is the force resisting the motion of an object at rest.

\Sigma F = 0\\\\F -F_f = 0

where;

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F= F_f \\\\72.1 = F_f\\\\F_f = 72.1\  N

Thus, the possible magnitude for the force of static friction on the stationary cart is 72.1 N.

Learn more about Newton's second law of motion: brainly.com/question/25307325

8 0
3 years ago
Does the lattice energy of an ionic solid increase or decrease as the charges or sizes of the ions increase?
alexandr1967 [171]

Answer:

Explanation:

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Due to increase in size of the ions, the lattice energy decreases while the lattice energy increases as the charge of the ions increases.

When the size increase, the distance between the nuclei also increase leading a decrease the force of attraction between the nuclei

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