The answer is 80 m.
Centripetal force (F) is a force that makes body move around a circular curve. The unit of force is N (N = kg * m/s²).
It can be represented as:
where:
m - mass
v - velocity
r - radius of the curve
We have:
m = 1,200 kg
V = 20 m/s
F = 6,000 N = 6,000 kg * m/s²
We need radius of the curve:
r = ?
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Answer:
1034.88J
Explanation:
Given that:
mass (m) = 11.2 g, initial temperature = 0°C, final temperature = 22°C, the specific heat capacity of water (C) = 4.2 J/g°C
Temperature difference (ΔT) = final temperature - initial temperature = 22 - 0 = 22°C
The quantity of heat (Q) required to melt the ice can be calculated from the equation:
Q = mCΔT
Q = 11.2 g × 4.2 J/g°C × 22°C
Q = 1034.88J
The bond that exist between two oxygen atoms is
called a double covalent bond. This bond involves the sharing of four electrons
to obtain a more stable structure. This type of bond is much stronger than the
single covalent bond. They are much harder to break.
Answer:
2408.1 °C
Explanation:
Given data:
Mass of oxygen = 1.70 g
Volume occupy = 9.75 L
Pressure of gas = 799 torr (799/760 = 1.1 atm)
Temperature = ?
Solution:
Formula:
PV = nRT
First of all we will determine the number of moles of oxygen.
Number of moles = mass/ molar mass
Number of moles = 1.70 g/ 32 g/mol
Number of moles = 0.05 mol
Now we will put the values.
R = general gas constant = 0.0821 atm.L/ mol.K
T = PV/nR
T = 1.1 atm× 9.75 L /0.05 mol ×0.0821 atm.L/ mol.K
T = 10.725 /0.004
T = 2681.25 K
kelvin to °C
2681.25 K - 273.15 = 2408.1 °C
