Physics, 08.04.2020 23:27 whitty

Which statement is true about the discontinuities of the function f(x)?

There is a hole at x = 2.
There are asymptotes at x = 0 and x = –1.
There are asymptotes at x = 0 and x = –1 and a hole at (2, two-thirds).
There are holes at x = 0 and x = –1 and an asymptote at x = 2.

Which statement is true about the discontinuities of the function f(x)? There is a hole at x = 2. Th

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Answer from: Quest

v=ir = 3x15 =45 v

Answer from: Quest

this could be newton#'s law of cooling. the cooling curve is exponential

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.

Answer from: Quest

chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude $\delta h$ , so she gains some gravitational potential energy.

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Which statement is true about the discontinuities of the function f(x)?

There is a hole...

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