The frictional force can be calculate as:
Ff = μr * N
where μr is the frictional constant while N is the normal
force which is also equivalent to weight, hence:
Ff = 0.002 * 180,000 kg * 9.81 m/s^2
Ff = 3,531.6 N
The frictional force is also equivalent to the product of
mass and acceleration, so we can find a:
Ff = m * a
a = 3,531.6 N / 180,000 kg
a = 0.01962 m/s^2 (in negative direction)
We can solve for time using the formula:
v = vi + a t
where v is final velocity = 0, vi is initial velocity = 22
m/s, t is time
0 = 22 - 0.01962 * t
<span>t = 1,121.3 seconds</span>
Answer:
prophase I
Explanation:
Homologous chromosomes pair up during prophase I of meiosis.
Answer:
The given equation is not balanced.
Explanation:
Chemical equation:
3H₂ + 3Cl₂ → HCl
The balanced equation always have equal number of atoms on both side of equation. In this equation on left side there are six atoms of chlorine and six atoms of hydrogen are present while on right side only one atom of hydrogen and one atom of chlorine are present.
The balanced equation always follow the law of conservation of mass.
According to the law of conservation of mass, mass can neither be created nor be destroyed in a chemical reaction.
It means reactant and product always have same mass.
The given equation can written as balanced equation as follows,
Balanced chemical equation:
3H₂ + 3Cl₂ → 6HCl
There are equal number of atoms of hydrogen and chlorine are present on both side of equation so it follow the law of conservation of mass.
Answer:
The limiting reactant is copper (II) chloride
Explanation:
here you go
<span>Wrap a magnet in plastic lunch wrap and move it through the mixture of the three solids. The iron filings will stick to the magnet. The filings can be removed by unwrapping the plastic from the magnet carefully! Mix the remaining salt and sand in water and stir.</span>
