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3 years ago

Calculate the gravitational potential energies of the melon and the pomegranate. Which one has potential energy

Physics

1 answer:

galben [10]3 years ago

6 0

Answer:

The mellon

Explanation:

I just know

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Which are the products in the equation CH3SH + 4O2 → CO2 + SO2 +2H2O? Check all that apply. CH3SH, O2 ,CO2, SO2, H2O

VikaD [51]

Answer:

C D E is the answer

Explanation:

7 0

3 years ago

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can you fill in the blank ____ is the difference between one point of a wave to the same point in the next wave

erastova [34]

The period is the temporal difference between two same points in consecutive waves

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3 years ago

Hello! Please I need help on 1. (C) I dont know the formula to get the Total height using Mechanical Energy

inna [77]

Answer:

4.00m

Explanation:

at that instant where it is dropped all the mechanical energy is gpe which is 71.9

and the formula for gpe = mass (1.80) * height * gravitational field strength (i'm using 10 m/s2)

height of football stadium

= 71.9/[(1.80)(10)]

= 71.9/18.0

= 3.99444..

= 4.00 (3 sf)

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4 years ago

Can someone help check question 2 I don’t think part 2 is right?!

Alisiya [41]

Your answer for question two is right

4 0

3 years ago

A revolutionary war cannon, with a mass of 2090 kg, fires a 16.7 kg ball horizontally. The cannonball has a speed of 113 m/s aft

OLEGan [10]

Answer:

0.90291 m/s

0.45055 m/s

Explanation:

$m_1$ = Mass of canon = 2090 kg

$m_2$ = Mass of ball = 16.7 kg

$v_1$ = Velocity of canon

$v_2$ = Velocity of ball = 113 m/s

In this system the momentum is conserved

$m_1v_1=m_2v_2\\\Rightarrow v_1=\dfrac{16.7\times 113}{2090}\\\Rightarrow v_1=0.90291\ m/s$

The velocity of the cannon is 0.90291 m/s

Applying energy conservation

$\dfrac{1}{2}m_1v_1^2+\dfrac{1}{2}m_2v_2^2=\dfrac{1}{2}m_2v^2\\\Rightarrow m_1v_1^2+m_2v_2^2=m_2v^2\\\Rightarrow v_2=\sqrt{\dfrac{m_1v_1^2+m_2v_2^2}{m_2}}\\\Rightarrow v_2=\sqrt{\dfrac{2090\times 0.90291^2+16.7\times 113^2}{16.7}}\\\Rightarrow v_2=113.45055\ m/s$

The ball would travel 113.45055-113 = 0.45055 m/s faster

6 0

4 years ago