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diamong [38]
3 years ago
10

5.How do simple machines make work easier?(1 point)

Physics
1 answer:
bija089 [108]3 years ago
3 0
The correct answer is d
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3 years ago
A long iron bar lies along the x-axis and has current of I = 16.4 A running through it in the +x-direction. The bar is in the pr
Gre4nikov [31]

Answer:

B = 8.0487mT

Explanation:

To solve the exercise it is necessary to take into account the considerations of the Magnetic Force described by Faraday,

The magnetic force is given by the formula

F =BILsin\theta

Where,

B = Magnetic Field

I = Current

L = Length

\theta = Angle between the magnetic field and the velocity, for this case are perpendicular, then is 90 degrees

According to our data we have that

I = 16.4A

F = 0.132N/m

As we know our equation must be modificated to Force per length unit, that is

\frac{F}{L} = BI sin(90)

Replacing the values we have that

0.132 = 16.4 (1) B

Solving for B,

B = \frac{0.132}{16.4}

B = 8.0487mT

8 0
4 years ago
assume that the brakes in your car create a constant deceleration regardless of how fast you are going. if you double your drivi
Monica [59]
If that happens to your car and you double the speed then it will take the car longer to come to a complete stop
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3 years ago
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Which of the following best describes the difference between speed and acceleration?
Nataly_w [17]

The correct answer to the question is : C) Speed is the distance an object travels within a specific unit of time, whereas acceleration is the rate at which the speed or direction of an object is changing.

EXPLANATION :

Before going to answer this question, first we have to understand speed and acceleration.

The speed of a body is defined as the rate of change of distance or the distance covered by the body per unit time. Speed is scalar quantity. Hence, it needs only magnitude for its complete specification.

The acceleration produced by a body is defined as the rate of change of velocity. We know that velocity is the speed in a particular direction. Hence, the acceleration is not only produced due to the change in magnitude of velocity as well as due to the change in direction. Hence, acceleration is a vector quantity which needs magnitude as well as direction for its complete specification.

Hence, the best difference between speed and acceleration is the third statement.

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How are watts measured?
BARSIC [14]

Answer:

The watt (symbol: W) is a unit of power. In the International System of Units (SI) it is defined as a derived unit of 1 joule per second, and is used to quantify the rate of energy transfer

Explanation:

8 0
3 years ago
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