Answer:
0.91 g/cm³
Explanation:
Density: This can be defined as the ratio of mass of an object to its volume.
The mathematical expression for density is given as,
D = m/v .............................. Equation 1
Where D = Density of the ice cube, m = mass of the ice cube, v = volume of the ice cube.
v = l³
Where l = length of each side of the cube.
l = 1.38 in = (1.38×2.54) cm = 3.51 cm
v = 3.51³
v = 43.24 cm³
Given: m = 1.39 oz = (1.39×28.35) g = 39.41 g
Substitute into equation 1
D = 39.41/43.24
D = 0.91 g/cm³
Hence the density of the ice cube = 0.91 g/cm³
Y is -45 N and X is 30.
When learning about forces, you have to understand that everything will cancel out on an object. So if the normal force is 45, to cancel it, the force of gravity has to be the negative of it. The same idea goes to frictional force. If the frictional force is -30 N, then to cancel it out, it has to be 30 N.
Answer:
Try asking your mom cause Brainly isn't always right ! : )
Explanation:
She'll help you if you need it truly. She is there to help you.
Answer:
Caliente el agua del grifo hasta que se convierta en vapor. Cuando el vapor se vuelve a condensar en agua
Explanation:
At a temperature of 298 K, the Henry's law constant is 0.00130 M/atm for oxygen. The solubility of oxygen in water 1.00 atm would be calculated as follows:
<span>S = (H) (Pgas) = 0.00130 M / atm x 0.21 atm = 0.000273 M
</span>
At 0.890 atm,
<span>S = (H)(Pgas) = 0.00130 M / atm x 0.1869 atm = 0.00024297 M</span>
<span>
If atmospheric pressure would suddenly change from 1.00 atm to 0.890 atm at the same temperature, the amount of oxygen that will be released from 3.30 L of water in an unsealed container would be as follows</span>
<span>
3.30 L x (0.000273 mol / L) = 0.0012012 mol</span>
3.30 L x (0.00024297 mol / L) = 0.001069068 mol
0.0012012 mol - 0.001069068 mol = 0.000132 mol
