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lina2011 [118]
2 years ago
6

Help me for physics please

Physics
1 answer:
8_murik_8 [283]2 years ago
8 0

Answer:

t = 1min

Explanation:

count how many footballs there are

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What percent of all bolts fire within a cloud
Leni [432]

I think that it is 80%

5 0
3 years ago
A ball, which has a mass of 1.25 kg, is thrown straight up from the top of a building 225 meters tall with a velocity of 52.0 m/
Anastasy [175]

First we will find the speed of the ball just before it will hit the floor

so in order to find the speed of the cart we will first use energy conservation

KE_i + PE_i = KE_f + PE_f

\frac{1}{2}mv_i^2 + mgh = \frac{1}{2}mv_f^2 + 0

\frac{1}{2}(1.25)(52)^2 + 1.25(9.8)(225) = \frac{1}{2}(1.25)v_f^2

So by solving above equation we will have

v_f = 84.3 m/s

now in order to find the momentum we can use

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3 0
3 years ago
At what rate is soda being sucked out of a cylindrical glass that is 6 in tall and has radius of 2 in? The depth of the soda dec
evablogger [386]

Answer:

The soda is being sucket out at a rate of 3.14 cubic inches/second.

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R= 2in

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rate of soda sucked out=  3.14 inch³/sec

4 0
3 years ago
What is the original source of hydroelectric energy
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Differences in land elevation result in rainfall runoff, and allow some of the original solar energy to be captured as hydro-electric power (Figure 1). Hydro power is currently the world's largest renewable source of electricity, accounting for 6% of worldwide energy supply or about 15% of the world's electricity.

hope this helps

mark brainliest  :)

6 0
3 years ago
The process of a liquid becoming a gas is call what
Sergio039 [100]
Vaporization of a sample of liquid is a phase transition from the liquid phase to the gas phase.

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3 years ago
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