Answer:
(Correct option is 2) crystallization of molten material inside Earth.
Explanation:
There are three types of rocks found on the surface of the earth sedimentary, metamorphic, and igneous. Rocks which have hardened with the help of magma, and the hot liquid below the earth crust is known as igneous rocks.
Igneous rock is defined as a rock which is synthesized by the crystallization, and hardening of molten material which originates from the inside of the Earth. It is basically two types:
1) Extrusive rocks.
2) Intrusive rocks.
Answer:
T = (3μmg - Fcosθ)/2
Explanation:
Since the boxes move to the right, the net force on box of mass 2m is
Fcosθ - 2μmg + T = ma (1)where Fcosθ = horizontal component of applied force, 2μmg = frictional force and T = tension in string and a = acceleration of box
The net force on the box with mass m is
μmg - T = ma (2) where μmg = frictional force, T = tension and a = acceleration of boxes.
Equating (1) and (2) we have
Fcosθ - 2μmg + T = μmg - T
collecting like terms
Fcosθ - 2μmg - μmg = -T - T
Fcosθ - 3μmg = -2T
(3μmg - Fcosθ)/2 = T
T = (3μmg - Fcosθ)/2
Answer:
Explanation:
Volume of cube=side³
=2*2*2
=8 cm³
Mass of cube=40g
Its density=mass/volume
=5g/cm³
which differs the value given in the text hence it is not gold and u should not bye it...
Instead u should call the police for arresting the person lol...
The answer is B because the water molecules
Answer:
As collision is elastic,thus we can use conservation of momentum equation
mA=0.2 kg
(vB)1=0 m/s.......................as it is on rest before collision
(vA)1=4 m/s
(vA)2=-1 m/s
(vB)2=2 m/s
using equation
(mA*vA+mB*vB)1= (mA*vA+mB*vB)2
Where 1 and 2 represents before and after collision
(0.2*4)+(mB*0)=(0.2*-1)+(mB*2)
0.8=-0.2+(2mB)
mass of object B=mB=0.3 Kg
