The find the approximate age of the granite one must know the half-life of potassium-40. The half-life of an element is the period of time in which half atoms of the same substance changes into the isotope of the element. The isotope of potassium-40 is Argon 40. Potassium-40 has a half-life of approximately 1.3 billion years. The rock is approximately 1.3 billion years old.
1 particles have got forces of attraction between them
2 they vibrate and rotate at a fixed point
3 they gan heat energy in order for them to melt
4 particles are closely packed together
Answer:0.0242 Nm
Explanation: The distance of 0.145 mm is very small. This will also result in a small ttorque. The question would make more sense if the distance was 0.145 m. Answering with the 0.145 mm as distance :
Changin from mm to m : 1mm=0.001m
0.145 mm = 0.000145 m
The formula for Torque is T=Fxd
Wher F is the force and d is the perpendicular distance between the centre of the bolt and the applied force.
T= 167 x 0.000145 = 0.024215 Nm
Hi! 65 km to mm is 65,000,000 mm! Hope this helped you!
Answer:
Temperature of neon gas = 875 K
Explanation:
Using Ideal gas equation as:
PV=nRT
Where,
P is the pressure of the gas
V is the volume of the gas
n is the number of moles
R is the gas constant
T is the temperature
Also,
The ideal gas equation can be written as:
Thus,
As Density and Pressure is constant , We only consider molar mass and Temperature which are directly proportional according to the equation above as:
Data given for He:
Temperature (T₁) = 175 K
Molar mass of He (M₁)= 4 g/mol
For Ne:
Temperature (T₂)= ?
Molar mass of He (M₂)= 20 g/mol
Applying in the equation,
<u>Temperature of neon gas = 875 K</u>
