Physics, 25.03.2020 05:24 alexmoy45p8yd7v

If you could chooses between to nearly identical products the one that is free and the other you have to pay for which would you choose why

Answers: 2

Show answers

Answers

well I do have to say nothing is free because someone somewhere has to pay for it but for your example I would choose the free one because I do not have to pay for it and it is identical to the other one so there isn't much difference I would use the money I didn't use for it for something more important

Answer from: Quest

the closer the planet is to the sun, the larger the gravity

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.

Another question on Physics

Physics, 22.06.2019 06:30

The energy of a photon was found to be 3.38 × 10–19 j. planck’s constant is 6.63 × 10–34 j • s. which color of light corresponds to this photon?

Answers: 2

Answer

Physics, 22.06.2019 08:40

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

Answers: 1

Answer

Physics, 22.06.2019 11:10

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.

Answers: 3

Answer

Physics, 22.06.2019 17:30

Patricia is trying to compare the average rainfall of new york to that of arizona. a comparison between these two states for the months of july through september would best be measured in

Answers: 3

Answer

You know the right answer?

If you could chooses between to nearly identical products the one that is free and the other you hav...

Questions