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3 years ago

When an object travels a large distance in a small amount of time, the object's speed is

1 answer:

8 0

If I were to go from the United States to China in one second, that's a large distance in an incredibly short time. I'd say that's pretty fast.

If I were to go from my room to the door of my room in a year, then that would be unbearably slow.

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ANOTHER PHYSICS QUESTION PLEASE HELP!

Sergio039 [100]

Answer

= 60

Hope it helps:)

5 0

3 years ago

Lake Erie contains roughly 4.00 ✕ 1011 m3 of water. (a) How much energy is required to raise the temperature of that volume of w

denis-greek [22]

Answer:

Part a)

$Q = 6.36 \times 10^{18} J$

Part b)

$t = 144.11 years$

Explanation:

Part a)

Energy required to raise the temperature of water from 17.8 degree C to 21.6 degree C is given by formula

$Q = ms\Delta T$

here we know that

Here the volume of the water is given as

$V = 4.00 \times 10^{11} m^3$

now the mass of water is

$m = density \times volume$

$m = 4.00 \times 10^{14} kg$

now the heat required is

$Q = (4 \times 10^{14})(4186)(21.6 - 17.8)$

$Q = 6.36 \times 10^{18} J$

Part b)

As we know that power is supplied at

$P = 1400 MW$

so here we know

$P = \frac{Q}{t}$

so here we have

$t = \frac{Q}{P}$

$t = \frac{6.36 \times 10^{18}}{1400 \times 10^6}$

$t = 4.54 \times 10^9 s$

$t = 144.11 years$

7 0

3 years ago

Blood borne pathogens can be transmitted between persons through

Alika [10]

Blood borne pathogens can be transmitted between persons through bodily fluid example: needle sticks, human bites, cuts, abrasions

hope this helps!

8 0

4 years ago

What happens to gravitational potential energy as a boulder falls off a cliff?

Gnom [1K]

As the boulder falls off the cliff, the gravitational potential energy that the boulder has is converted into kinetic energy. If you do the calculations, you will see that the kinetic energy the boulder has is equal to the gravitational potential energy it had before it fell off a cliff.

4 0

3 years ago

Read 2 more answers

Let y be the height of the coffee in the funnel at any given time, so that just before the dripping starts we have y = 3. Since

pishuonlain [190]

Answer: y will change the slowest but still with a zero (0) value.

Explanation: at y = 3: the height y will change the slowest when the coffee level is at the top of the cone.

7 0

3 years ago