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3 years ago

Harnessing the sun's energy to produce heat or electricity is

Physics

2 answers:

ss7ja [257]3 years ago

8 0

The answer is nonpolluting

notsponge [240]3 years ago

4 0

harnessing the sun's energy to produce heat or electricity is : Non-polluting Unlike oil or gas based energy, solar energy create no dangerous emission that is dangerous for our environment. Many scientist believed that solar energy is the answer to the environmental crisis that we currently faced.

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10. Wind appears to curve to the a. Left b. Up c. Right

ahrayia [7]

There is no picture to reference from so I’m going to take a wild guess and say A

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4 years ago

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Kids are pelting a window with snowballs. On average, two snowballs of roughly 300-g mass hit the window each second, moving hor

hram777 [196]

Answer:

The average force exerted on the window due to two snowballs is 6 N

Explanation:

Given:

Mass of snowballs $m = 300 \times 10^{-3}$ Kg

Velocity of snowball $v = 10 \frac{m}{s}$

For finding the average force,

Force is equal to the change in momentum,

$F = \frac{dP}{dt}$

Here, final velocity is zero so we write,

$F = \frac{mv}{1}$

Where $dt = 1$ sec

$F = 300 \times 10^{-30} \times 10$

$F = 3$ N

Above value of force is due to one ball, but here given in question there are two ball,

$F = 3 \times 2$

$F = 6$ N

Therefore, the average force exerted on the window due to two snowballs is 6 N

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4 years ago

if you transfer equal amounts of geat to 1kg of water and 1kg of cooper, which will change tempature more

Angelina_Jolie [31]

If you transfer equal amounts of geat to 1kg of water and 1kg of cooper, the temperature of the cooper will change more . . . it'll get more degrees warmer than the water will.

That's because the specific geat of water is greater than the specific geat of cooper.

(This just means it takes more geat to warm some mass of water by some amount than it takes to warm the same mass of cooper by the same amount.)

4 0

3 years ago

A shipping pallet holds 10 boxes. Each box holds 300 parts of differenttypes. The part weight is normally distributed with a mea

Nat2105 [25]

Answer:

Explanation:

300

5 0

3 years ago

Pls can someone help

xz_007 [3.2K]

Answer:

ITS THE LAST ONE(4TH), I THINK

Explanation:

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3 years ago

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