Explanation:
Two objects that only have the force of gravity acting on them, will fall with the same acceleration <span>g=9.8<span>m<span>s2</span></span>; g=32.2<span><span>ft</span><span>s2</span></span></span> and will therefore hit the ground at the same time.
When you drop a feather, air resistance acts on all the surfaces of the feather. This causes the feather to slow down.
Air resistance depends on two factors: the speed of the object (increased for example by throwing it), and its surface area.
hope this can give u a little bet more to know about how to get ur answer :P
have a gud day and gud luck!
Answer:
Q= 6213.72 J
Explanation:
Given that
n = 2.2 moles
T= 490 K
Given that gas is ideal gas and process is isothermal.
We know that internal energy for ideal gas only depends on the temperature.The temperature change in the isothermal process is zero.That is why internal energy change will be zero.
ΔU = 0
From first law of thermodynamics
Q = ΔU + W
Q= W
We know that work for isothermal process
![W=P_1V_1\ln \dfrac{P_1}{P_2}](https://tex.z-dn.net/?f=%20W%3DP_1V_1%5Cln%20%5Cdfrac%7BP_1%7D%7BP_2%7D)
![W=nRT\ln \dfrac{V_2}{V_1}](https://tex.z-dn.net/?f=%20W%3DnRT%5Cln%20%5Cdfrac%7BV_2%7D%7BV_1%7D)
Given that V₂ = 2 V₁
![W=nRT\ln \dfrac{2V_1}{V_1}](https://tex.z-dn.net/?f=%20W%3DnRT%5Cln%20%5Cdfrac%7B2V_1%7D%7BV_1%7D)
![W=nRT\ln 2](https://tex.z-dn.net/?f=%20W%3DnRT%5Cln%202)
R=gas constant = 0.0821 atm.L/K.mol
W= 2.2 x 0.0821 x 490 ln2 atm.L
W=61.34 atm.L
W=Q= 61.34 atm.L
We know that
1 atm.L = 101.3 J
Q= 6213.72 J
lets say no friction and the acrobat has enough air in their lungs to be neutrally buoyant and density wont affect them and you dont need the quadratic equation for this just d=t*a and its 0.666666667 just 32/48
Acid-Base Reactions. When an acid and a base are placed together, they react to neutralize the acid and base properties, producing a salt. The H(+) cation of the acid combines with the OH(-) anion of the base to form water. The compound formed by the cation of the base and the anion of the acid is called a salt.
Explanation:
The stretch of the spring is
![\Delta x = 0.4 m-0.3 m=0.1 m](https://tex.z-dn.net/?f=%5CDelta%20x%20%3D%200.4%20m-0.3%20m%3D0.1%20m)
The constant of the spring is k=15 N/m, so we can find the force produced by the weight by using Hook's law: