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Georgia [21]
2 years ago
14

How much kinetic energy does a moving object have if it’s mass is 100 kg and it is moving at a speed of 5 meters per second

Physics
1 answer:
yKpoI14uk [10]2 years ago
6 0

We will have the following:

k=\frac{1}{2}(100\operatorname{kg})(5m/s)^2\Rightarrow k=1250J

So, the object has 1250 Joules of kinetic energy.

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Select each correct answer. If an object is moving, the amount of kinetic energy it has directly depends upon which of the follo
Jobisdone [24]
<span>If an object is moving, the amount of kinetic energy it has directly depends upon which of the following factors?</span>
- the object's mass
- the object's velocity

4 0
3 years ago
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What is the relationship between the wavelength of the peak (maximum) of the Gaussian curve and the temperature in degrees Kelvi
Tomtit [17]

Answer:

\lambda_{max}=\frac{b}{T}

Explanation:

Wien's displacement law states that the radiation of the black body curve for different temperatures will give peak values at different wavelengths and this wavelength is related inversely to the temperature.

Formally the law of Wien displacement states that the black body's spectral radiation per unit of wavelength, will give peaks at the wavelength of  \lambda_{max} which is given by the mathematical expression.

\lambda_{max}=\frac{b}{T}

Here, b is proportionality constant  with value of 2.897771955...\times 10^{-3} mK

The wavelength of the peak of the Gaussian curve is inversely related to temperature in degree kelvin.

3 0
3 years ago
What are the similarities between p waves S waves and surface waves
dem82 [27]

Answer:both are body waves often associated with seismic waves

Explanation:

Both are body waves often associated with seismic waves as in earthquakes

5 0
3 years ago
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A 50 kg boy is at the edge of a circular platform of radius 4.0 m which is rotating freely
Flauer [41]

Answer:

0.62 rad/s

Explanation:

Angular momentum is conserved.

I₁ ω₁ = I₂ ω₂

where I is moment of inertia and ω is angular velocity.

The total moment of inertia is the sum of the platform's inertia and the boy's.

(I + m r₁²) ω₁ = (I + m r₂²) ω₂

Given I = 1000 kg m², m = 50 kg, r₁ = 4.0 m, r₂ = 3.0 m, and ω₁ = 0.5 rad/s:

(1000 + 50 (4.0)²) (0.5) = (1000 + 50 (3.0)²) ω₂

900 = 1450 ω₂

ω₂ = 0.62 rad/s

8 0
4 years ago
Henry ran a 100 m race. Use the graph to answer the following:
horrorfan [7]

Using the graph, which describes how Henry ran the 100m race;

a) It takes Henry 20seconds to run 100m

b) Henry's average speed over the race is; 5m/s.

According to the linear graph which describes the distance ran by Henry during the 100m race as a function of time.

a) Since the distance from start ran by Henry is plotted on the vertical axis, and the time is plotted on the horizontal axis;

To determine how long it took Henry to run 100m; The point corresponding to 100m is traced downward from the line of the graph and we find out that;

It takes Henry 20seconds to run 100m

b) Henry's average speed over the race is simply;

The slope of the distance-time graph.

Therefore,

  • Average speed = (100-0)/(20-0)

  • Average speed = 100/20

  • Average speed = 5m/s.

Therefore, Henry's average speed over the race is; 5m/s.

Read more:

brainly.com/question/22125199

6 0
3 years ago
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