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riadik2000 [5.3K]
3 years ago
14

Could anyone help me with my project? Plz it’s overdue & I’m Don’t understand

Physics
2 answers:
posledela3 years ago
8 0

The example says skateboard. Something to do a vehicle. Motorcycle or bike are both vehicles which uses the following energy.

viktelen [127]3 years ago
5 0
Message me I can help!
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Conductivity is the property of matter in which a substance can transfer heat or electricity

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A dairy farmer notices that a circular water trough near the barn has become rusty and now has a hole near the base. The hole is
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v=1.93m/s

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Does Solid surfaces reflect better than liquid surfaces? If why?
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An object is thrown upward with some velocity. If the object rises 77.5 m above the point of release, (a) how fast was the objec
jolli1 [7]

Answer:

v_o=39\ m/s\\t_m=4\ s

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<u>Vertical Launch Upwards</u>

In a vertical launch upwards, an object is launched vertically up from a height H without taking into consideration any kind of friction with the air.

If vo is the initial speed and g is the acceleration of gravity, the maximum height reached by the object is given by:

\displaystyle h_m=H+\frac{v_o^2}{2g}

The object referred to in the question is thrown from a height H=0 and the maximum height is hm=77.5 m.

(a)

To find the initial speed we solve for vo:

\displaystyle v_o=\sqrt{2gh_m}

v_o=\sqrt{2\cdot 9.8\cdot 77.5}

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(b)

The maximum time or the time taken by the object to reach its highest  point is calculated as follows:

\displaystyle t_m=\frac{v_o}{g}

\displaystyle t_m=\frac{39}{9.8}

t_m=4\ s

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Calculate the frequency of yellow light with a wavelength of 580x10 to the -9
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5.2x10¹⁴ hz is your answer.
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