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Aleks04 [339]
2 years ago
5

Introduction to Forces Warm-Up Active How do forces affect the motion of an object?

Physics
2 answers:
julia-pushkina [17]2 years ago
5 0

Answer:

Because of my physics teacher I would put this entire explanation below if i were u

Explanation:

Forces affect how objects move. They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving.

Since force cause changes in the speed or direction of an object, we can say that forces cause changes in velocity. Remember that acceleration is a change in velocity. So forces cause acceleration.

In-s [12.5K]2 years ago
4 0

Answer:

Forces can affect an object.

Balanced forces allow an object to continue moving at a constant motion (law of inertia).

Unbalanced forces cause a change in motion.

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Alex_Xolod [135]

To solve this problem, we should recall the law of conservation of energy. That is, the heat lost by the aluminium must be equal to the heat gained by the cold water. This is expressed in change in enthalpies therefore:

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The negative sign simply means heat is lost. Therefore we calculate for the mass of water (m):

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Using same mass of water and initial temperature, the final temperature T of a 1.0 kg aluminium block is:

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Given:

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As the sound loudness changed from a maximum to a minimum, then we know the sound interference in the case changed from constructive interference (the two sound waves are in phase, i.e. peaks are in a line with peaks and so the troughs), to a destructive interference (peaks coinciding with troughs). The least distance change required to cause such a change is a half wavelength distance, so:

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