Answer:
less than 20580 N
Explanation:
According to the newton's second law of motion
Force = mass * acceleration
(assuming gravitational acceleration =9.8 m/s2 )
acceleration = 30*9.8 = 294 m/s2
acting Force = 70 * 294
= 20580 N
Since the acceleration was less than 30g , acting force should also be less than 20580 N
Answer:
Carbon is found in the atmosphere mostly as carbon dioxide.
Explanation:
The incline is frictionless, this means we can use the conservation of energy: the initial kinetic energy of the block

is converted into gravitational potential energy

where h is the height reached by the block as it stops. By equalizing the two formulas, we get


However, this is the maximum height reached by the block. The distance along the surface of the plane is given by:
Answer:
Explanation:
Magma contains dissolved gases, which provide the driving force that causes most volcanic eruptions. As magma rises towards the surface and pressure decreases, gases are released from the liquid portion of the magma (melt) and continue to travel upward, and are eventually released into the atmosphere.