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NNADVOKAT
12 days ago
5

An object experiences an acceleration of -6.8 m/s​2.​ As a result, it accelerates from 54 m/s to a complete stop. How much dista

nce did it travel during that acceleration?
Physics
1 answer:
Maru [3.3K]12 days ago
3 0
The distance covered during the acceleration phase is d = 214.38 m. Given parameters include the acceleration of the object, a = -6.8 m/s², initial speed, u = 54 m/s, and final speed, v = 0. The equation for acceleration is defined as a = (v - u) / t. Therefore, rearranging gives t = (v - u) / a, resulting in t = (0 - 54) / (-6.8) = 7.94 s. The average speed of the object is V = (54 + 0)/2 = 27 m/s. The displacement is calculated as d = V x t = 27 x 7.94 = 214.38 m. Thus, the total distance traveled during that period of acceleration is 214.38 m.
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Two thermometers are calibrated, one in degrees Celsius and the other in degrees Fahrenheit.
Keith_Richards [3271]

Answer:

The temperature is 233.15 K

Explanation:

Recall the formula for converting Celsius (C) to Fahrenheit (F):

\frac{9}{5} C+32=F

To make degree C equal to degree F, we set it up as C = F

By substituting F with C on the right side of the equation above, we find C:

\frac{9}{5} C+32=F\\\frac{9}{5} C+32=C\\\frac{9}{5} C-\frac{5}{5} C =-32\\\frac{4}{5} C==32\\C= \frac{-32\,*\,5}{4} \\C=-40

This indicates that -40°C = -40°F

And this temperature in Kelvin is:

-40°C + 273.15 = 233.15 K

8 0
21 day ago
There are two different size spherical paintballs and the smaller one has a diameter of 5 cm and the larger one is 9 cm in diame
Ostrovityanka [3204]

Answer:

145.8 cm³ of paint

Explanation:

d₁ = Diameter of the smaller paintball = 5 cm

d₂ = Diameter of the larger paintball = 9 cm

V₂ = Volume of the larger paintball

Volume of the smaller paintball

V_1=\frac{4}{3}\pi r_1^3\\\Rightarrow V_1=\frac{4}{3}\pi \left(\frac{d_1}{2}\right)^3\\\Rightarrow V_1=\frac{4}{24}\pi d_1^3

Likewise

V_2=\frac{4}{24}\pi d_2^3

By dividing the previous two equations, we derive

\frac{V_1}{V_2}=\frac{d_1^3}{d_2^3}\\\Rightarrow V_2=\frac{V_1}{\frac{d_1^3}{d_2^3}}\\\Rightarrow V_2=\frac{28}{\frac{125}{729}}\\\Rightarrow V_2=163.296\ cm^3

∴ The larger one accommodates 163.296 cm³ of paint

5 0
1 month ago
A solar-powered car has a kinetic energy of 110250 J. Its mass is 180 kg. Work out how fast the car is travelling.
ValentinkaMS [3465]

Response:

35 m/s

hope this helped

​

3 0
9 days ago
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Sav [3153]

solution:

the spring force applied by a spring with spring constant k can be expressed as

F(x)=-kx

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the amount of work done by the spring when moving from x=0 to x=L

W=-kx^2/2

substituting the limits x=0 and x=L

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ANSWER

W=-kL^2/2

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22 days ago
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The city evaluates the continuous increase of carbon monoxide from different origins each year. According to calculations, in the year "C: 2019"<span> (rounded to the closest whole number), the concentration of CO will surpass the allowed threshold.

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1 month ago
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