A. Congress
Answer:
Congress
Explanation:
Applied force Newtons
Frictional Force Newtons
Normal Force Newtons
Tension Force
Net Force Newtons
The weight of the girl is 300 N. The applied force, frictional force, and normal force are all zero. The tension force in the bar is 300 N, and the net force is zero.
The weight of the girl can be calculated using the formula:
Weight = mass × gravity
where mass = 30 kg and gravity = 10 m/s2. Therefore, Weight = 30 kg × 10 m/s2 = 300 N.
Since the girl is motionless, the net force acting on her is zero. In this case, the tension force in the bar equals the weight of the girl, which is 300 N. The other forces (applied force, frictional force, and normal force) are also zero since the girl is not moving.
Therefore, the forces are:
#SPJ1
B
C
D
E
Answer : The correct option is, (D)
Explanation :
Vaporization process : It is type of process which occurs when phase changes from liquid phase to gaseous phase at constant temperature. And liquid converted to gas phase at temperature .
Melting process : It is type of process which occurs when phase changes from solid phase to liquid phase at constant temperature. And solid converted to liquid phase at temperature .
In the given diagram,
'A' shows the solid phase, 'B' shows the melting process, 'C' shows the liquid phase, 'D' shows the vaporization process and 'E' shows the gas phase.
Hence, the liquid is vaporizing at 'D' point.
Explanation :
When the car accelerates, our body pushed backward against the seat. This effect is due to inertia.
When the car starts suddenly, our feet also comes in motion. But the rest body is still at rest.
Inertia is the property of a body which opposes its state of rest or state of motion.
In this case, the inertia of the passenger resists the motion of the car. So, he pushed backwards as the car started.
less than
equal to
In a sound wave, the magnitude of the compression is ___ the magnitude of the rarefaction.
equal to
Answer:
The length of its year.
Explanation:
When Earth completes a full rotation, a year has completed. So, the same can be the same for other orbiting planet. The moon for example takes 29.5 days to revolve around the Earth, so one moon year is 29.5 Earth days.