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Komok [63]
2 years ago
8

Which of the following, by scientific definition is NOT work? lifting boxes of books, pedaling on your bike, holding a book over

your head, pushing a chair across the room​
Physics
1 answer:
Karolina [17]2 years ago
3 0

Answer:

holding a book over your head

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All objects are either ___________ or ___________. Charged objects can have a ____________ or _____________ charge. Uncharged ob
KATRIN_1 [288]

All objects are either <u>charged</u> or <u>uncharged</u><u>.</u> Charged objects can have a <u>positive</u> or <u>negative</u> charge. Uncharged objects will have a <u>no</u> charge. Charged objects that have the same charges will <u>repel</u> each other. Charged objects with opposite charges will <u>a</u><u>t</u><u>t</u><u>r</u><u>a</u><u>c</u><u>t</u> each other. Uncharged objects can become <u>charged</u><u>.</u> The charge an object has gives it <u>electric</u> energy. The charged object’s ability to attract (pull) or repel (push) other objects is called <u>electrostatic</u> force.

5 0
2 years ago
Which of the following is the correct SI unit to use in measuring the mass of a boulder
never [62]
Definitely not A or B. It really depends on the size of the boulder... It should be kilograms, unless it's a extremely huge boulder.
7 0
3 years ago
Read 2 more answers
A golfer strikes a 0.059-kg golf ball with a force of 290 N. If the ball moves with a velocity of 69 m/s,
Ymorist [56]

Answer:

0.014s

Explanation:

Given parameters:

mass of golf ball  = 0.059kg

force applied  = 290N

velocity = 69m/s

initial velocity  = 0m/s

Unknown:

Time of contact  = ?

Solution;

We know that momentum is the quantity of motion of body possess;

  Momentum  = mass x velocity

  Momentum  = 0.059 x 69  = 4.1kgm/s

Also; impulse is the effect of the force acting on a body;

  impulse  = force x time  = momentum

  So;

            Force x time  = momentum

                  Time  = \frac{momentum}{force }    = \frac{4.1}{290}    = 0.014s

 

 

4 0
2 years ago
Electric forces stay the same as distance changes electric field change true or false
Kisachek [45]

Answer:

False

Explanation:

7 0
3 years ago
The tropic of cancer is to the tropic of capricorn as the arctic circle is to the
Y_Kistochka [10]

Answer:

Antarctic Circle

Explanation:

The Tropic of Cancer, which is also referred to as the Northern Tropic, is the most northerly circle of latitude on Earth at which the Sun can be directly overhead. This occurs on the June solstice, when the Northern Hemisphere is tilted toward the Sun to its maximum extent.

Tropic of Capricorn Is it Southern Hemisphere counterpart, marking the most southerly position at which the Sun can be directly overhead.

7 0
3 years ago
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