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2 years ago

Marvin lifts a box over his head. The work done on the box is- -Negative work -No work -Positive work

Physics

1 answer:

NemiM [27]2 years ago

6 0

Answer:

Positive work

Explanation:

When work and the exerted force are in the same direction, then the work done is positive.

In the question, we understand that Marvin lifts a box up (i.e. over his head). The force to lift the box acts in the upward direction and the work done itself is also in the upward direction (from the floor to Marvin's head).

Since these two are in the same direction, then we can conclude that the work done is positive.

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Am 1 years old UwU (JK 15)

igomit [66]

Answer:

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Explanation:

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2 years ago

Does the u declined adverb express time, place, or manner? The squirll spotted us and ran away.

AVprozaik [17]

I feel like it expresses time, but if there is another answer and they say otherwise, then they are probably right.
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2 years ago

A 750-kg automobile is moving at 16.8 m/s at a height of 5.00 m above the bottom of a hill when it runs out of gasoline. The car

anygoal [31]

Answer:h=19.4 m

Explanation:

Given

mass of automobile $m=750\ kg$

Initial height of automobile $h_o=5\ m$

Velocity at this instant $v=16.8\ m/s$

If the car stops somewhere at a height $h$

Thus conserving total energy we get

$K_i+U_i=K_f+U_f$

$\frac{1}{2}mv^2+mgh_o=\frac{1}{2}m(0)^2+mgh$

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2 years ago

The process of making alloys involves(Cooling, Heating or mixing) pure metals to remove impurities. Then the pure metals are(bro

ANEK [815]

The process of making alloys involves ( Heating ) pure metals to remove impurities. Then the pure metals are(mixed) with other components. An alloy is a mixture of metals or a mixture of a metal and another element. Alloys are defined by a metallic bonding character.

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2 years ago

Read 2 more answers

Tell me any 5 importance of medicinal plants

s344n2d4d5 [400]

Answer:

Aloe, Tulsi, Neem, Turmeric, and Ginger are medicinal plants that can help with a variety of diseases. Ginger, green tea, walnuts, aloe, pepper, and turmeric are just a few of these plants. Some plants and their derivatives are key sources of active compounds used in aspirin and toothpaste, among other things.

Explanation:

Plant name: Uses:

1. Marshmallow: //// Relief from aching muscles and pain in muscle, Heals insect bite. ////

2.California poppy //// Relieves tension, Removes nervous system

3. Tulsi //// Cures sore throat, Cures fever and asthma

4. Neem //// Cures skin diseases, Cures diabetics

5. Aloevera //// Heals burns, Relieves constipation

(Hope this helps can I pls have brainlist (crown)☺️)

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2 years ago