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miss Akunina [59]
3 years ago
12

What does it mean for a chemical equation to be balanced?

Physics
2 answers:
lianna [129]3 years ago
6 0

the answer is B

//..............

Brums [2.3K]3 years ago
3 0
I believe the answer is B
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A comet orbits a star in a strongly elliptical orbit. The comet and star are far from other massive objects. As the comet travel
Kruka [31]

Answer:

the kinetic energy decreases and the potential energy Increases.

Explanation:

as the comet travels away from the star it gains an energy which it posses because of its position or state.once the comet moves away form the star the kinetic decreases until its lost all together to where the potential energy starts increasing.

3 0
3 years ago
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A truck has a mass of 2,000 kg. The driving force created by the engine is 3,000 Newtons. Calculate the acceleration caused by t
Brrunno [24]

Answer:

1.5 m/s^2

Explanation:

Force = 3000 Newtons

Mass = 2000 kilograms

Force = Mass x Acceleration

This rearranged to:

Acceleration = Force / Mass

Acceleration = 3000 / 2000 = 1.5 m/s^2

8 0
3 years ago
Important things about emotional health
atroni [7]

Answer:

The important thing about emotional health is being in control of their thoughts, feelings, and also behaviors.

Explanation:

Emotional health is an important part of overall health. People who are emotionally healthy are in control of their thoughts, feelings, and behaviors. They're able to cope with life's challenges. They can keep problems in perspective and bounce back from setbacks.

4 0
3 years ago
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A 1.80-kg monkey wrench is pivoted 0.250 m from its center of mass and allowed to swing as a physical pendulum. The period for s
Evgen [1.6K]

Answer:

(a) I (Moment of inertia)=0.0987 kgm^{2}

(b) W(Angular Speed)=2.66 \frac{rad}{s}

Explanation:

Given data

m (Monkey mass)= 1.80 kg

d=2.50 m

T (Time Period)=0.940 s

Angle= 0.400 rad

(a) I (Moment of Inertia)=?

(b) W (Angular Speed)=?

For part (a) I (Moment of Inertia)=?

Time Period Formula is given as

T=2(3.14)\sqrt{\frac{I}{mgd} }

After Simplifying we get

I=\frac{mgdT^{2} }{4*(3.14)^{2}}

I=\frac{1.8*9.8*0.25*(0.94)^{2} }{4(3.14)^{2} }

I=0.0987 kgm^{2}

For Part (b) Angular Speed

From Kinetic Energy we get

KE=\frac{1}{2}IW^{2}

Pontential Energy

PE=mgd(1-Cosa)

KE=PE

\frac{1}{2}IW^{2}=mgd(1-Cosa)

W^{2}=\frac{2mgd(1-Cosa)}{I}

W=\sqrt{\frac{2*1.8*9.8*0.25*(1-Cos(0.4)rad)}{0.0987} }

W=2.66\frac{rad}{s}

5 0
3 years ago
In a bicycle dynamo,does 1. The permanent magnet surrounds a conducting coil 2. The conducting coil rotates when the rear wheel
atroni [7]

Explanation:

3: the electricity is generated in the permanent magnet

7 0
3 years ago
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