Physics, 19.07.2019 22:00 130004979

Use the drop-down menus to complete each sentence. the height of the cylinder is manipulated. this is the variable. the temperature of the water changes as the height of the cylinder changes. the temperature of the water is therefore the variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the system that is held constant is the .

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Answer from: skylerteaker

The height of the cylinder is manipulated. This is the variable.

independant

The temperature of the water changes as the height of the cylinder changes. The temperature of the water is therefore the variable.

dependant

A “constant” is a parameter that stays the same regardless of the variables. One parameter of the system that is held constant is the .mass of cyilinder

Answer from: damien1030

1. The height of the cylinder which is manipulated represents the independent variable.

2. The temperature of the water changes as the height of the cylinder changes, therefore it is the dependent variable.

3. One parameter of the system that is held constant is the mass of cylinder.

An experiment can be defined as a systematic investigation that is carried out under controlled conditions while an independent variable (the cause) is manipulated, in order to determine and measure the dependent variable (the effect) through series of observation.

In an experiment, the variable that is being manipulated by an experimenter is referred to as an independent variable while the dependent variable is the event that is expected to change when an independent variable is manipulated.

Additionally, a constant is a parameter that is unchanged throughout an experiment.

In this context, each of the sentence is completed as follow:

The height of the cylinder which is manipulated represents the independent variable.The temperature of the water changes as the height of the cylinder changes, therefore it is the dependent variable.One parameter of the system that is held constant is the mass of cylinder.

Read more on an independent variable here: link

Answer from: Quest

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

Answer from: Quest

weight of the box is given as

$w = 112.1 n$

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

$w_x = w sin\theta$

here we have

$w = 112.1 n$

$w_x = 112.1 sin42$

$w_x = 75 n$

so it requires 75 n force to move it upwards

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