What is a time interval?

Answers

Answer 1

Answer:
"Time" has no beginning, no end, and no definite length.

An interval is a piece cut out of time.
It has a beginning, an end, and a definite length.

I just made this up, but I humbly assert that it's got
everything you need to know about an interval of time.

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Will amplitude change if the pitch gets louder

Answers

The wording of the question is fundamentally defective,
and the question is therefore unanswerable. (But I'll
gladly accept your points anyway.)

"Amplitude" is the origin of the subjective impression of loudness.
"Pitch" is not.

There is no such concept as the 'loudness' of a pitch.

Find the slope of the line that passes through the pair of points (6, 7) and (9, 2). Find the slope of the line that passes through the pair of points (17, 9) and (5, 29).

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As you have probably already learned, we calculate slope by dividing the change in vertical position by the change in horizontal position. Δy/Δx
Question 1: (9-6)/(2-7)=-3/5
Question 2: (5-17)/(29-9)= -12/20, which simplifies to -3/5

Answer:

Explanation:

When unbalanced forces act on an object, __________________. the object accelerates friction becomes greater than the net force the objects speeds up the net force is zero?

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When an unbalanced force acts on an object, the object accelerates. We can immediately rule out B and D, as friction changes based on the material and by applying a force the net force can’t be zero. It can be easy to say that the object will speed up after the force is applied (and it often does!), but take a braking car, for example. An external force of friction is applied to the brakes, causing an acceleration but in such a fashion that the car slows down. So, although an object can speed up after a force is applied, it isn’t always guaranteed.

Hope this helps!

What is the velocity of the dart just before the collision?

Answers

Answer: 1.38 m/s to the right.

Explanation: We can solve this problem using the principle of conservation of momentum. The momentum of an object is defined as the product of its mass and velocity, and the total momentum of a closed system is conserved, meaning that the total momentum before a collision is equal to the total momentum after the collision.Let the initial velocity of the dart be v, and let the final velocity of the dart and the block be vf. The momentum of the dart before the collision is given by p = mv, where m is the mass of the dart. The momentum of the dart and block after the collision is given by (m + M)vf, where M is the mass of the block.Using the principle of conservation of momentum, we have:p = (m + M)vfSubstituting the given values, we get:0.012 kg v = (0.012 kg + 0.2 kg) 0.78 m/sSimplifying, we get:v = (0.212 kg) (0.78 m/s) / 0.012 kgv ≈ 1.38 m/sTherefore, the velocity of the dart just before it hits the block is approximately 1.38 m/s to the right.

In which of the following sentences is work used in the scientific sense of the word? A scientist works on an experiment in the laboratory.*

B Sam and Rachel pushed, but they could do no work on the car. ????

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B) obviously. Work in a scientific sense is the ability to make a displacement on an object in this case.

In A) the scientist can work on an experiment as your uncle can work on the field planting tomatos.

What is the kinetic energy of a 108 kg object that is moving with a speed of 11.1 m/s ?