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kipiarov [429]
3 years ago
14

Tiny cell structure that carry out specific functions within the cell

Physics
1 answer:
RSB [31]3 years ago
8 0

Answer:

Organelles

Explanation:

I learned this in science.

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The best type of exercise for weight loss is
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Answer:

finding a workout.

Explanation:

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3 years ago
You throw a rock up into the air as hard as you can. It stays in the air a total of 6.0 s. What
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<h2>5.9 x 10</h2>

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6 0
3 years ago
2. How long must a 400 W electrical engine work in order to produce 300 kJ of work?
yanalaym [24]

Answer:

Explanation:

400 W = 400 J/s

300000 J / 400 J/s = 750 s or 12.5 minutes

7 0
3 years ago
A 6 kg box with initial speed 5 m/s slides across the floor and comes to a stop after 1.9 s. What is the coefficient of kinetic
Ilia_Sergeevich [38]

Answer:

\mu_k=0.27

Explanation:

According to the free body diagram, in this case, we have:

\sum F_x:-F_k=ma\\\sum F_y:N=mg

Recall that the force of friction is given by:

F_k=\mu_k N

Replacing and solving for the coefficient of kinetic friction:

-\mu_kN=ma\\-\mu_k(mg)=ma\\\mu_k=-\frac{a}{g}

We have an uniformly accelerated motion. Thus, the acceleration is defined as:

a=\frac{v_f-v_0}{t}\\a=\frac{0-5\frac{m}{s}}{1.9s}\\a=-2.63\frac{m}{s^2}

Finally, we calculate \mu_k:

\mu_k=-\frac{-2.63\frac{m}{s^2}}{9.8\frac{m}{s^2}}\\\mu_k=0.27

4 0
3 years ago
Complete the sentence-
trasher [3.6K]

Answer:

Friction always acts opposite to the motion.

3 0
2 years ago
Read 2 more answers
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