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3 years ago

What was the average number of tropical storms per season for the time period 1995-2004?

Physics

1 answer:

Sloan [31]3 years ago

7 0

13 compared to 8.3.................................

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DESPERATE WILL GIVE BRAINLIST AND THANKS

marissa [1.9K]

Answer: False

Explanation: The Mesozoic Era was the “age of the dinosaurs.” The era ended with “The Great Extinction” which marked the end of the dinosaurs as the Cenozoic era began.

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3 years ago

Two horizontal curves on a bobsled run are banked at the same angle, but one has twice the radius of the other. The safe speed (

iren [92.7K]

Answer:

safe speed for the larger radius track u= √2 v

Explanation:

The sum of the forces on either side is the same, the only difference is the radius of curvature and speed.

Also given that r_1= smaller radius

r_2= larger radius curve

r_2= 2r_1..............i

let u be the speed of larger radius curve

now, $\sum F = \frac{mv^2}{r_1} =\frac{mu^2}{r_2}$ ................ii

form i and ii we can write

$v^2= \frac{1}{2} u^2$

⇒u= √2 v

therefore, safe speed for the larger radius track u= √2 v

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4 years ago

Check the correctness of given equation<br> s = ut + (1/2)at^2

ruslelena [56]

Lets use Dimensional analysis.

$\\ \sf\longmapsto s=ut+\dfrac{1}{2}at^2$

$\\ \sf\longmapsto s=\left[M^0LT^0\right]$

$\\ \sf\longmapsto ut+\dfrac{1}{2}at^2$

$\\ \sf\longmapsto \left[M^0LT^{-1}\right]\left[M^0L^0T^1\right]+\dfrac{1}{2}\left[M^0LT^{-2}\right]\left[M^0L^0T^1\right]^2$

$\\ \sf\longmapsto L+\dfrac{1}{2}\left[LT^{-2}\right]\left[T^2\right]$

$\\ \sf\longmapsto L+\dfrac{1}{2}L$

$\\ \sf\longmapsto \dfrac{2L}{2}$

$\\ \sf\longmapsto [L^1]$

$\\ \sf\longmapsto \left[M^0LT^0\right]$

LHS=RHS

Hence verified

6 0

3 years ago

An astronaut rides in a circular training accelerator at 16 m/s. If the radius of the accelerator is 8.0 meters, what is his cen

iren [92.7K]

Answer:

$a=32\ m/s^2$

Explanation:

Given that,

The velocity of an astronaut in a circular path, v = 16 m/s

The radius of the accelerator, r = 8 m

We need to find his centripetal acceleration. The formula that is used to find the centripetal acceleration is given by :

$a=\dfrac{v^2}{r}\\\\a=\dfrac{(16)^2}{8}\\\\a=32\ m/s^2$

So, the required centripetal acceleration is $32\ m/s^2$ .

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3 years ago

If you wanted to calculate the density of a baseball and you knew its mass and volume you would need the density formula and a(n

jek_recluse [69]

D= Mass over Volume or M/V
and if needed m*d = V and vise versa

8 0

3 years ago

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