bark

This page lists questions and answers that were posted by visitors named bark.

Questions

The following questions were asked by visitors named bark.

This refers to passive solar collector, where solar radiation is used to heat water. It is therefore not on the solar cells. What characteristics should solar collectors have, to function in an optimal way? Why should these properties be fulfilled? If the...

2. After independence, most South American countries A. extended voting rights to all men B. established communist systems with command economies -------- C. were dominated by wealthy landowners D. shifted from plantation agriculture to small scale farmin...

The scarlet ibis is a symbol for Doodle because (1 point) it was afraid of human interaction. it was hatched from a caul. it was unique and awkward. it thrives only in the warm climate.

which of the following coordinate pairs is a point on the parabola y=-4x^2-53x-56

Answers

The following answers were posted by visitors named bark.

Epot=mgh = (70)(9.81)(3)=2060,1 Ek1 =(0.5)(70)(14.30)^2= 7157,15 Ek2 =(0.5)(70)(15.60)^2=8517,6 total energy= (Epot+Ek1)- Ek2 =9217,25-8517,6 =699,65

ok but what is solar flux and should i assume that time is 24 hours?

i agree with you but is the result correct, my english is'nt ok i know i forgot the units, but sure it is joule

I just found the following: I didn't find any time tables I still need help Regards Solar radiation on Earth: As the Sun's energy spreads through space its spectral characteristics do not change because space contains almost no interfering matter. However...

a) tan 110 degrees = tan 110-180= tan-70 b)sin 350 degrees = sin 350-360 = sin-10 degrees

angular momentum of earth = Ie*ùe Putting ùe = 2ð/T = 2ð/(24*60*60) = 7.27*10^-5 If we assume average density of earth = 5500 kg/m³, and R = 6400 km, Ie = 8ðñeR^5 / 15 (formula for moment of inertia (MOI) of sphere with density ñe and radius R) Ie=9,9 * 1...

v = v0 + a*t a= (v-v0)/t a=(7-4)/3 a=1 cm/min^2 SI units m/s 4 cm/min = 0,04/60=6,7 10^-4 m/s 7 cm/min = 0,001167 a=5*10^-4/180 a=2,76 *10^-6 m/s

write the q again

.x(x-3)=4 means that x=4 and x-3=4 Is that right? x^2-3x-4=0 (x-4)(x+1)=0 x1=4 and x2=-1 so if you put x = 4 then x-3 can't be equell to 4

F=85*cos20 N work=fd= 85*cos20*30 work =2,4 kNm

from eg 2 you get 3y=13-2x you should subsitute it i eq 1 4x-(13-2x)=11 4x-13+2x=11 6x-13=11 6x=24 divid the eq by 6 we get x=4 the put x=4 in 3y=13-2x 3y = 13 -2*4 3y=5 y =5/3

how should i consider the flow of water 500 g / minute and the area of the collector

so would it be D then?

i need help with this question Kai has a red bucket, a yellow bucket, and a green bucket. The red bucket holds twice as much water as the green bucket. The yellow bucket holds 8 quarts. If the three buckets hold 14 gallons in all, how many gallons does th...

yep mom and anonymous are 100% correct, thank you both.

omg i got it 100% correct i was doubting too bc the answers looked fake but likeee it worked

thank u lillyyyyy

You guys are serious right, they first off switch the answers and you do know this is a learning site not cheating site

meow is 100% correct