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Anuta_ua [19.1K]
3 years ago
13

What happens to acceleration if forces are balanced

Physics
2 answers:
Arturiano [62]3 years ago
8 0
There will be 0 acceleration
Vikentia [17]3 years ago
5 0

Answer:

No acceleration.

Explanation:

If the forces are Balanced it means they are in equilibrium and there will be  no net force, therefore the object will not accelerate and the velocity will remain constant.

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Tpy6a [65]
D. all of these

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How is the frequency of an electromagnetic wave related to energy
aivan3 [116]

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Explanation:

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7 0
3 years ago
An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 6.0 V for 0.65 ms. The resistance of t
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Answer: a) 0.11 Amp b) 0.000429 Joules c) 0.000514 watt

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6 0
3 years ago
The scientific method is a process by which scientists: prove theories to be known facts gain confidence in theories by failing
mixer [17]

Answer:

The scientific method is the process by which scientists gain confidence in theories by failing to prove them wrong.

Explanation:

Scientific  method is a step by step process of creating and carrying out experiments. These processes to be performed are derived from logical and rational application  of knowledge concerning a particular subject matter. Through these processes, scientists reach a conclusion about the world, these makes them confident in their findings.

The steps involved in scientific method include:

Observation: it is the first step. It enables you organise in your mind how you want the experiment to.

HYPOTHESIS is the result you imagine you'll find.

PREDICTION is how you think about the scientific idea- It solely relies on the hypothesis made.

EXPERIMENT is used to test your hypothesis. It is the tool designed to check if your idea is right or wrong.

CONCLUSION is the final step. It is the result gotten from the experiment. It can approve the hypothesis or reject the hypothesis.

A theory is formed when hypothesis has been tested to be true by many scientists. Hence scientists gain confidence in theories when the scientific method is approved.

 A scientific theory is a well-approved explanation of an aspect of the natural world. The approval is based on thoroughly confirmed hypothesis and experiments carried out by many scientists.

5 0
3 years ago
A 50-cm-long spring is suspended from the ceiling. A 230g mass is connected to the end and held at rest with the spring unstretc
alukav5142 [94]

Answer:

k = 25.07 N/m

Amplitude = 9 cm

f = 1.66 Hz

Explanation:

Given:

- The original length of the spring L_o = 50 cm

- The mass hanged m = 230 g

- The amount of stretch given 2x = 18 cm @lowest point.

Find:

a. What is the spring constant? (K=)

b. What is the amplitude of the oscillation?

c. What is the frequency of the oscillation?

Solution:

- Make a FBD of the hanging mass, There are two external forces acting on it that is the force of gravity due to its weight and the springs restoring force when its stretched to its lowest point. After hanging the mass on the spring a new equilibrium position is achieved which also causes the spring to stretch. We can apply the Equilibrium conditions at this point in vertical direction as:

                                      k*x - m*g = 0

                                      k = m*g / x

Where, x is the extension of the spring or mean stretch. which 0.5*amplitude (Lowest point). x = 9 cm

                                      k = 0.23*9.81 / 0.09

                                      k = 25.07 N/m

Answer: For part a we have the stiffness of the spring k = 25.07 N/m

- The amplitude of the oscillating motion is the half the amount of total stretch or the amount the spring extends above or below the mean position.

                                       Amplitude = x = 9 cm

- The frequency of any oscillatory motion which can be modeled by SHM can be expressed as:

                                       f = 1 / 2*p*  sqrt ( k / m )

- Plug the values in:                                        

                                       f = 1 / 2*pi* sqrt (25.07 / 0.23 )

                                       f = 1.66 Hz

Answer: For part c the frequency of oscillation is f = 1.66 Hz

           

8 0
3 years ago
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