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3 years ago

12

1. when estimating the area covered by an object, what type of errors might you make and what are the sources that might have ca

used it.

1 answer:

defon3 years ago

6 0

Answer:

Rounding errors, measuring errors

Explanation:

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Sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motionstays in motion with the sam

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Answer:

D

Explanation:

Newtons first law states that if an object is at rest it will stay at rest only if an unbalanced force acts on it. As well as if an object is in motion it will stay in motion unless an unbalanced force acts on it.

Ps- The object will stay moving in the same speed and direction.

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2 years ago

The process of wind blowing sand from one location to another is called

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Answer:

weathering

Explanation:

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3 years ago

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A light horizontal spring has a spring constant of 138 N/m. A 3.35 kg block is pressed against one end of the spring, compressin

BARSIC [14]

Answer:

$U_k = 0.113$

Explanation:

using the law of the conservation of energy:

$E_i -E_f=W_f$

$\frac{1}{2}Kx^2=NU_kd$

where K is the spring constant, x is the spring compression, N is the normal force of the block, $U_k$ is the coefficiet of kinetic friction and d is the distance.

Also, by laws of newton, N is calculated by:

N = mg

N = 3.35 kg * 9.81 m/s

N = 32.8635

So, Replacing values on the first equation, we get:

$\frac{1}{2}(138)(0.123)^2= (32.8635)U_k(0.281m)$

solving for $U_k$ :

$U_k = 0.113$

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3 years ago

In preparation for an electrophoresis procedure, enzymes are added to DNA in order to

lapo4ka [179]

It is 2.) Cut the DNA into fragments

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3 years ago

Which sentence states Newton’s third law?

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Answer:

A. If two objects collide, each object exerts a force in the same direction as the other.

Explanation:

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3 years ago