Physics, 02.12.2019 00:31, shybug886

Arace track has a length of 0.750 miles. how many inches is this? one mile equals 5280 feet

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answered: coolkason

A race track has 47520 inches.

Explanation:

Given that,

Length if the race track is 0.750 miles.

We know that, one mile is 5280 feet.

One feet is 12 inches.

To convert length of the track from miles to inches follow these steps:

Step 1:

Convert into feet:

Multiply 0.750 miles to 5280 feet.

Then the race track’s length is 3960 feet.

Step 2:

Convert into inch:

Multiply 3960 feet to 12 inches.

Then the race track’s length is 47520 inches.

Therefore, length of the race track in inches is 47520 inches.

answered: Guest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

answered: Guest

part 1: which substance has a higher solubility?

smallest amount left undissolved atall temps in table shown most has dissolved high sol'by

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Arace track has a length of 0.750 miles. how many inches is this? one mile equals 5280 feet...