Answer:
Explanation:
a )
weight of car = 600 kg .
According to Archimedes principle , for free floatation ,
weight of car = weight of displaced water
600 x 9.8 = v x 10³ x 9.8 , v is volume of water displaced and 10³ kg/ m³ is density of water.
v = .6 m³
required fraction
= .6 / 2
= .3
b )
Let mass of water entering before the start of sinking of car .
mass of maximum displaced volume of water by car = 2 x 10³m³.
(600 + m ) x g = 2 x 10³ x g [ 10³ is density of water ]
600 + m = 2000
m = 1400 kg .
Answer:
0.041 m
Explanation:
T = 2π√(L/g)
1 s = 2π√(L / (1.6 N/kg))
L = 0.041 m
HEY THERE !!
It is called SUBLIMATION.
so the correct answer is (D).
<h2>Answer: protons and neutrons.
</h2>
The atomic nuclei of almost all elements consist of protons and neutrons.
The nucleus of an atom has very small dimensions. However, it <u>occupies its central part and concentrates more than 99% of its total mass.
</u>
It is in the nucleus that the protons (positive charge) and neutrons (neutral charge) are found.
Answer:The acceleration due to gravity g is inversely proportional to the square of the radius in the formula g = GM / R^2 where G is the gravitational constant = 6.67 x 10^-11 Nm^2/kg^2, M is the mass of the Earth and R is the radius of the Earth
Explanation:
