<span> The box is exerting a force of its weight. So we'll use W=mg (Note: you can use the notation F=ma, doesn't matter since weight IS a force.) We can call g negative since it's directed down towards the earth.
</span>
<span>W = 5kg(-9.8 m/(s^2)) = -49 N
</span>
<span>Thus, the box exerts a force of 49N downwards. </span>
The value of γ needed for transformation between the two frames is 2.2942.
To transform the position, time, mass from one coordinate frame to another frame which moves with a speed v relative to the first, we need to calculate the Lorentz constant γ .
This is given by,
Substitute 
for v and 
for <em>c</em>.
The Lorentz factor needed for transforming the position and time coordinates from the given frame to the frame moving with a speed v relative to it is 2.2942
The ratio method exists as an estimating technique which requires knowledge and experience,
<h3>What is meant by
ratio method?</h3>
- Ratio technique: This method uses a basic project attribute, like size in square meters or the number of software features, and the cost per meter or feature to project the overall cost and length of the project.
- Ratio analysis in project management can measure how effectively resources are being managed and how efficiently the project is running. The balance sheet and income statement of an organization are typically where financial ratios in the corporate environment are derived.
- A measure of the relationship between a proposed project's relative costs and benefits, expressed in monetary or qualitative terms, is the benefit-cost ratio (BCR). The expectation is that a project with a BCR of greater than 1.0 will provide a firm and its investors with a positive net present value.
Hence, The ratio method exists as an estimating technique which requires knowledge and experience,
To learn more about ratio method refer to:
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Answer:
h = 7.54 m
t = 1.24 s
Explanation:
1.Let g = 9.81 m/s2 is the gravitational acceleration. Since the formula for potential energy is:
where m = 0.25 is the ball mass and h is the height. We can solve for h
2. The time it take for the ball to reach a distance of 7.54m with a gravitational acceleration of 9.81m/s2:
Color (intensive)
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volume (extensive)
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