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3 years ago

As an object increases in altitude, its mass:

Physics

2 answers:

nalin [4]3 years ago

8 0

The answer is C. mass never changes. it is the amount of "stuff" in your body

iren2701 [21]3 years ago

8 0

Its C. remains the same

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An acrobatic airplane performs a loop at an airshow. The centripetal acceleration the plane experiences is 14.7 m/s2. If it tak

Ivahew [28]

Answer:

754.8 m

Explanation:

The centripetal acceleration is given by

$a=\frac{v^2}{r}$

where v is the speed of the airplane and r is the radius of the loop.

We can rewrite the speed of the airplane as the ratio between the length of the circumference ( $2 \pi r$ ) and the time taken:

$v=\frac{2 \pi r}{t}$

Substituting in the formula of the acceleration, we have

$a=\frac{(2 \pi)^2 r^2}{t^2 r}=\frac{(2 \pi)^2 r}{t^2}$

Re-arranging the formula and putting the numbers of the problem into it, we can find the radius of the loop, r:

$r=\frac{at^2}{(2 \pi)^2}=\frac{(14.7 m/s^2)(45.0 s)^2}{(2 \pi)^2}=754.8 m$

4 0

3 years ago

Read 2 more answers

A star begins as a ____, a large cloud of gas and dust.

Vlada [557]

A. Nebula . Is The Answer !

6 0

3 years ago

Read 2 more answers

What happens after the Gulf Stream travels north?

Ierofanga [76]

Incorrect didn't flow away from pole cause warmer climate I know cause I tried.

Im'ma guess cause didn't correct the answer but says Flowing away from pole was wrong though.

My guess is crashing with warm water. Might be wrong too though...

6 0

3 years ago

a car with a mass of 1200 kg travels a distance of 150 M as it moves from one stoplight to the next at its fastest the car trave

inna [77]

Answer:

ke = 1/2mv^2

= 1/2 * 1200 * 22^2

= 600 * 484

= 290400 J

Hope it helped u,

pls mark this as brainliest

and put thanks

^_^

3 0

3 years ago

Read 2 more answers

A race car travels 99 m/s around a circular track of radius 52 m. What is the magnitude of the resultant force on the 1900 kg dr

Dmitriy789 [7]

Answer:

Force = 358.11 kN

Explanation:

Resultant force = Centripetal force.

$\texttt{Centripetal force, F = }\frac{mv^2}{r}$

Mass, m = 1900 kg

Velocity, v = 99 m/s

Radius, r = 52 m

Substituting

$\texttt{Centripetal force, F = }\frac{mv^2}{r}\\\\F=\frac{1900\times 99^2}{52}\\\\F=358113.46N\\\\F=358.11kN$

Force = 358.11 kN

3 0

4 years ago