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4 years ago

How will you describe the motion of an object in a balanced and unbalancedstate? ASAP

Physics

2 answers:

gogolik [260]4 years ago

6 0

Answer:

Objects move according to their net force, or the total amount of force acting on them. Balanced forces are just that, balanced. An object with balanced forces will not move because the opposing forces will cancel each other out. However, if there are unbalanced forces, the object will move in accordance with the force that is greater. When moving though, there is always friction. Whether you be underwater, on the ground, or in the air there is always friction on the Earth. (Besides vacuums, of course.)

Force is equal to mass x acceleration.

With that you can find the forces of the object if you know its mass and acceleration.

Explanation:

The motion of an object can be described in many ways, including path, speed, velocity, and acceleration.

tester [92]4 years ago

5 0

Answer:

Balanced forces do not cause a change in the motion of objects.

but Unbalanced forces can change the motion of an object in two ways.

Explanation:

Forces that are equal in size but opposite in direction are called balanced forces.

Forces that cause a change in motion of objects are called unbalanced forces.

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3 years ago

Read 2 more answers

While a block slides forward 1.35 m, a force pulls back at a 135 direction, doing -17.8 J of work. what is the magnitude of the

Verdich [7]

The magnitude of the force is 18.6 N

Explanation:

The work done by a force on an object is given by

$W=Fd cos \theta$

where

F is the magnitude of the force

d is the displacement of the object

$\theta$ is the angle between the direction of the force and of the displacement

For the block in this problem, we have

$W=-17.8 J$ is the work done

d = 1.35 m is the displacement of the block

$\theta=135^{\circ}$ is the angle between the force and the displacement

Solving for F, we find the magnitude of the force:

$F=\frac{W}{d cos \theta}=\frac{-17.8}{(1.35)(cos 135)}=18.6 N$

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4 years ago

How fast does a 500kg car need to drive to have 100,000 J of kinetic energy?

olchik [2.2K]

Answer:

The car must move at 2 m/s to have a Ke of 2,000 Joules.

Explanation:

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3 years ago

The lowest note on a grand piano has a frequency of 27.5 Hz. The entire string is 2.00 m long and has a mass of 440g . The vibra

ANEK [815]

Answer:

Tension, T = 2038.09 N

Explanation:

Given that,

Frequency of the lowest note on a grand piano, f = 27.5 Hz

Length of the string, l = 2 m

Mass of the string, m = 440 g = 0.44 kg

Length of the vibrating section of the string is, L = 1.75 m

The frequency of the vibrating string in terms of tension is given by :

$f=\dfrac{1}{2L}\sqrt{\dfrac{T}{\mu}}$

$\mu=\dfrac{m}{l}$

$\mu=\dfrac{0.44}{2}=0.22\ kg/m$

$T=4L^2f\mu$

$T=4\times (1.75)^2\times (27.5)^2 \times 0.22$

T = 2038.09 N

So, the tension in the string is 2038.09 N. Hence, this is the required solution.

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4 years ago

Use the second laws of thermodynamics to explain how an incandescent bulb might be less efficient than a compact fluorescent bul

Vsevolod [243]

An incandescent bulb produces light that comes from the heating of a filament. A compact fluorescent bulb produces light when a substance is hit by electromagnetic radiation. Compact fluorescent bulbs are more efficient than incandescent bulbs.

The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic processes. Therefore, a system with lower heat emissions would be more efficient.

The second law of thermodynamics states that the total entropy of an isolated system (the thermal energy per unit temperature that is unavailable for doing useful work) can never decrease. In our context, it means that the system with the least amount of losses would be more efficient. As a conclusion the fluorescent bulb would be more efficient.

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2 years ago

How will you describe the motion of an object in a balanced and unbalancedstate? ASAP​

How will you describe the motion of an object in a balanced and unbalancedstate? ASAP