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kifflom [539]
3 years ago
5

What questions should be considered when evaluating the reliability of a website?

Physics
2 answers:
creativ13 [48]3 years ago
6 0
How accurate a website is?
Who is the author?
Is the website info being bias?
When was the website written and is it recent?
Does the web have and mistakes?
Is there a way to contact?
Is there bibliography given?
Is there information given on the author?
Is the author a reliable? 
Alex787 [66]3 years ago
5 0

Explanation:

Is the site from an established institution or reputed organization?

Who is providing the information?

What is the author's credential?

Is the site bias?

Is the site trying to influence you?

Is the author's contact information provided?

When the site was last updated?

When the site was first created?

What is the major domain of the web address?

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El conductor de un coche de 650 kg que va a 90 km/h frena y reduce su
Ivanshal [37]
A. 90km/h = 25 m/s
W=1/2mv^2
=1/2* 650* 25^2
= 203125(J)
b. v’= 90-50= 40km/h
= 100/9 m/s
W=1/2mv^2
=1/2*650*(100/9)^2
= 40123,45679
7 0
3 years ago
A simple pendulum of length of 1.37 m and mass of 6.66 kg is given an initial speed of 2.85 m/s at its equilibrium position. Det
yawa3891 [41]

Answer:

2.35 s

Explanation:

The period of a simple pendulum is expressed as;

                                T = 2π\sqrt{\frac{L}{g} }

Where

T is the period in seconds

L is the length in metres

g is acceleration due to gravity

                                 T = 2π\sqrt{\frac{1.37}{9.8}}

                                 T = 2.349 s

                                 T = 2.35 s

8 0
3 years ago
Extreme-sports enthusiasts have been known to jump off the top of El Capitan, a sheer granite cliff of height 910 m in Yosemite
german

Answer:

The jumper is in freefall for 12.447 seconds.

Explanation:

Let's start by calculating how far the jumper falls.

Initial height (on cliff) = 910 m

Final height after freefall = 150 m

Distance the jumper falls in freefall = 910 - 150 = 760 m

We can now use the equation of motion below to solve for the time:

s=u*t+\frac{1}{2} (a*t^2)

here. acceleration = 9.81 m/s   (due to gravity)

initial speed (u) = 0 m/s    (because vertical speed is 0 at the start)

and distance (s) = 760 meters (as calculated above)

So for speed we get:

760=0*t+0.5(9.81*t^2)

760=4.905t^2

t = 12.447 seconds

5 0
3 years ago
You are riding your bike at 9 km/h twn minutes later your speed is 6 km/h
gtnhenbr [62]

De-celleration because speed is lower as time goes on


5 0
3 years ago
Read 2 more answers
A house that was heated by electric resistance heaters consumed 1200 kWh of electric energy in a winter month. If this house wer
Marysya12 [62]

Answer:

$84

Explanation:

The coefficient of performance (COP) show the relationship between the power (kW) output of the heat pump and the power (kW) input to the compressor.

The heater consumed by the heater is 1200 kWh.

For a heat pump with a COP of 2.4, the electric input needed to produce an output of 1200 kWh is:

Electric input to heat pump = 1200 / 2.4 = 500 kWh

That means that supplying a heat pump with 500 kWh produces an output of 1200 kWh

The amount of power saved = power consumed by heater - power consumed by heat pump = 1200 - 500 = 700 kWh

Money saved = $0.12/kWh * 700 kWh = $84

6 0
2 years ago
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