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The mass increases linearly but radius decreases exponentially so the result is ##9.8 m/s^2 * 2 * 4 = 78.4 m/s^2## Let’s first look at the […]

49.5 mph Because it’s half an hour you can just double it.

The speed of light decreases. The speed of light in a medium is inversely proportional to the refractive index of the medium. ##v=frac{v_0}{n}## where ##v## is […]

##k~=0051## ##if object stops velocity of object is zero.## ##v_l: last velocity of object## ##v_i: initial velocity of object## ##a: acceleration of object## ##x: displacement of […]

The length of an arc can be found using: ##s = rtheta## where ##s## is arc length ##r## is the distance to the axis of revolution […]

##70588xx10^(14)Hz## Using the equation for the speed of a light wave and knowing its speed in air we get : ##c=flambda## ##thereforef=c/lambda=(3xx10^8m//s)/(425xx10^(-9)m)=70588xx10^(14)Hz##

Rather than thinking of as ##vec F = m vec a## it may be more instructive to think of it in this form ##vec a = […]

I found: ##7.4m## Have a look:

is the ability to do a