Answer:
20N
Explanation:
Given parameters:
Force(N) Acceleration(m/s²)
10 0.2
? 0.4
Unknown:
The force applied when the acceleration is 0.4m/s²
Solution:
From newton's second law of motion;
Force = mass x acceleration
Since we are using the same box, let us find the mass of the box;
Force = mass x acceleration
10 = mass x 0.2
mass = 
= 50kg
Now,
The force in the second instance will be;
Force = 50 x 0.4 = 20N
Answer:
Superscript 235 subscript 92 upper U plus superscript 1 subscript 0 n right arrow superscript 140 subscript 55 upper C s plus superscript 94 subscript 37 upper R b plus 2 superscript 1 subscript 0 n
Explanation:
Nuclear fission is a nuclear reaction in which the nucleus of an atom splits into smaller parts (lighter nuclei). The fission process often produces free neutrons and releases a large amount of energy,for example, uranium, into smaller atoms such as iodine, caesium, strontium, xenon and barium, to name just a few. The fission of heavy elements is an exothermic reaction, and huge amounts of energy are released in the process.
If we look at the equation given in the answer, we will notice that a uranium-235 nucleus was bombarded with neutrons and it split into caesium-140, Rubidium-94 and more neutrons. This process takes place in nuclear reactors and is a self-sustaining process. It is self sustaining be cause more neutrons are produced, thereby continuing the fission reaction.
Ethene is double and ethane is single
Answer:
5.41 x 10²² g
Explanation:
Data Given:
no. of moles of sodium = 2.35 x 10²¹ moles
mass of sodium = ?
Solution:
Formula used
no. of moles = mass in grams / molar mass
To find mass rearrange the above equation:
mass in grams = no. of moles x molar mass. . . . . . (1)
- molar mass of Sodium (Na) = 23 g/mol
Put values in equation 1
mass in grams = 2.35 x 10²¹ moles x 23 g/mol
mass in grams = 5.41 x 10²² g
So,
mass of Sodium (Na) = 5.41 x 10²² g
