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Liula [17]
3 years ago
12

a truck is moving around a circular curve @ a uniform velocity of 13m/s. if the centifrical force on truck is 3,300N with truck

mass of 1600kg. What is curve radius?
Physics
1 answer:
VMariaS [17]3 years ago
8 0

<u>Answer</u>

81.94 m


<u>Explanation</u>

The centripetal force of an object moving in a circular path is given by:

F = mv²/r  Where m is the mass of the object, v is the constant velocity and r is the radius of the curve.

F = mv²/r

3,300 = (1600×13²)/r

3,300 = 270,400/r

r = 270,400/3,300

  = 81.94 m

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suppose you increase your walking speed from 5m/s to 14m/s in a period of 1 . what is your acceleration?
Ne4ueva [31]

Acceleration = (change in speed) / (time for the change.

change in speed = (ending speed) - (starting speed)  =  9 m/s.

Acceleration  =  (9 m/s) / (period of 1) .

We don't know the units of the 'period of 1'.
If it means '1 second', then the acceleration is   9 m/s² .

7 0
3 years ago
Neglecting air, what speed does a rock thrown straight up have to be to reach the edge of our atmosphere: say 100 km? Still negl
Ugo [173]

To solve this problem it is necessary to apply the kinematic equations of movement description, specifically those that allow us to find speed and acceleration as a function of distance and not time.

Mathematically we have to

v_f^2-v_i^2 = 2ax

Where,

v_{f,i} = Final velocity and Initial velocity

a = Acceleration

x = Displacement

From the description given there is no final speed (since it reaches the maximum point) but there is a required initial speed that is contingent on traveling a certain distance under the effects of gravity

0 - v_i^2 = 2(9.8)(100*10^3)

v_i = 14*10^2m/s

Therefore the speed which must a rock thrown straight up is 14*10^2m/s to reach the edge of our atmosphere.

The displacement and gravity traveled are the same, therefore the final speed will be the same but in the opposite vector direction (towards the earth), that is 14 * 10 ^ 2m / s

5 0
3 years ago
Help me please on this
Norma-Jean [14]
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6 0
2 years ago
The diameters of apples from a certain farm follow the normal distribution with mean 4 inches and standard deviation 0.4 inch. A
trasher [3.6K]

Answer:

The probability for the proportion of apples with diameters less than 3.5 inches is 0.1056.

Explanation:

For a normal distribution, z score is calculated using this formula:  (X-μ)/σx

Where Mean, μ = 4

Standard deviation, σ = 0.400

The probability for the proportion of apples with diameters less than 3.5 inches is expressed below:

Probability = P(X<3.5)

                  = P(Z<-1.25)

Probability  = 0.1056

7 0
3 years ago
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How much light a given colored object reflects is referred to as saturation. is this statement true or false?
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The brightness and intensity of a color are defined by its saturation. To lower the saturation of a pigment hue, both white and black (grey) are added to the color.

What does saturation mean in color?

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  • Colors with high saturation, such as the circle on the left, contain little or no white light. The quantity of shade blended with the color determines the level of brightness.
  • The wavelengths of light that an item reflects determine its 'color.' This is governed by the arrangement of electrons in the atoms of that substance, which will absorb and re-emit photons of different energy in accordance with intricate quantum principles.

To learn more about saturation visit:

brainly.com/question/1173101

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