3 years ago

Which statement best describes scientific laws?

1 answer:

8 0

The correct answer is Scientific laws describe specific relationships in nature without offering an explanation.

They are not theories or don't have hypotheses. They just describe what always happens like Newton's laws. Every action has a reaction. That is not an explanation, just a description of what happens.

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A freight train rolls along a track with considerable momentum. If it rolls at the same speed but has twice as much mass, its mo

GREYUIT [131]

Answer:

doubled

Explanation:

Step 1. Linear momentum (p) = mass X velocity = mv

p = mv -----equation 1

Step 2. if the mass is now twice and speed is same

p = (2*m)v -----equation 2

solving equation 1 and 2 together,

p = mv = 2mv

p = 2

Therefore, its momentum is doubled

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3 years ago

Katrina’s recipe for orange muffins calls for 400 grams of flour. How many kilograms of flour are in the recipe?

aliina [53]

Answer:

0.4 Kilograms of flour

Explanation:

If you convert 400 grams into kilograms (400 ÷ 1,000), you would get 0.4 kilograms.

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3 years ago

Which of the following is an example of the effect of a natural force ?

Ulleksa [173]

A. Rain falling from the sky.

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4 years ago

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What is the acceleration of a softball if it hits the ground with a force 0.50 kg and hits the catchers glove with a force of 25

Rom4ik [11]

Acceleration of the ball is $50 m/s^2$

Explanation:

The acceleration of the ball can be found by using Newton's second law of motion, which states that the net force acting on an object is equal to the product between the mass of the object and its acceleration:

$F=ma$

where

F is the net force

m is the mass

a is the acceleration

For the ball in this problem, we have

m = 0.50 kg (mass)

F = 25 N (force)

thereofre, the acceleration of the ball is

$a=\frac{F}{m}=\frac{25}{0.50}=50 m/s^2$

Learn more about Newton's second law:

brainly.com/question/3820012

#LearnwithBrainly

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3 years ago

I need help on a physics problem!! Please help

Ksivusya [100]

What you need help with?

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4 years ago