Physics, 12.12.2020 16:00 jjmarie612

Calculate the speed of an airplane that has a mass of 96,000 kg and a kinetic energy of 3,600,000,000 J:

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Answer from: Quest

explanation:

areas w steep slopes, west coast, rocky mountains, and appalachian mountains

Answer from: Quest

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

Answer from: Quest

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

Answer from: Quest

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.

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Calculate the speed of an airplane that has a mass of 96,000 kg and a kinetic energy of 3,600,000,0...

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