Answer:
430.
Explanation:
If we know that 0.5 is half of a whole number, then we can simply understand that we need to 215 x 2 to get our answer.
Answer:
lunar node in other words is either of the two orbital nodes of the Moon, that is, the two points at which the orbit of the Moon intersects the ecliptic. The ascending node is where the Moon moves into the northern ecliptic hemisphere, while the descending node is where the Moon enters the southern ecliptic hemisphere
Answer:
The correct solution is "64 RPM".
Explanation:
The given values are:
Mass,
M = 2.3 kg
Diameter,
D = 20 cm
i.e.,
= 0.2 m
Rotates at,
N = 110 rpm
Mass of block,
m = 460 g
i.e.,
= 0.46 kg
According to angular momentum's conservation,
⇒ 
then,
⇒ 
On substituting the values, we get
⇒ 
⇒ 
⇒ 
Now,
⇒ 
then,
⇒ 
⇒ 
⇒ 
⇒ 
Answer:
C
Explanation:
Mantle convection is the very slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface. The Earth's surface lithosphere rides atop the asthenosphere and the two form the components of the upper mantle.
Answer:
Velocity
Explanation:
Objects in motion usually have a speed which is scalar or velocity which is a vector.
A scalar quantity is one with magnitude but has no directional attribute.
A vector quantity is one with both magnitude and directional attribute.
Speed is a scalar quantity that describes the magnitude of motion a body accrues.
Velocity is a vector quantity that describes both the magnitude of motion and the direction of motion in a body.
