All the big volcanoes are in the northern hemisphere of Mars, and most of the craters are in the southern hemisphere is of the following statements that best characterizes the surface of the planet Mars.
Hope this helps,
Davinia.
Answer:
Approximately 
.
Explanation:
By the Impulse-Momentum Theorem, the change in this woman's momentum will be equal to the impulse that is applied to her.
The momentum 
of an object is equal to the product of its mass 
and velocity 
. That is: 
.
Let 
and 
represent the velocity of the woman before and after the landing. Let represent the woman's mass.
- The woman's momentum before the landing would be
. - The woman's momentum after the landing would be
.
Therefore, the change in this woman's momentum would be:
.
On the other hand, impulse is equal to force multiplied by the duration of the force. Let 
represent the average force on the woman. The impulse on her during the landing would be 
.
Apply the Impulse-Momentum Theorem.
- Impulse:
. - Change in momentum:
.
Impulse is equal to the change in momentum:
.
After landing, the woman comes to a stop. Her velocity would become zero. Therefore, 
.
.
An electromagnet is a soft metal core which is made into a magnet by passing the electric current through a coil which is surrounding it.
Answer:
When the mass is drawn upwards and let go, the force of gravity accelerates it,
Explanation:
if you send me the video i can give you a better answer its just hard without seeing it
Positive acceleration occurs when an object speeds up.
Explanation:
Acceleration is the rate of change in velocity per unit time:
where 
is the change in velocity while 
is the time interval. From the formula, we can understand that when is positive, so when the object is speeding up, the acceleration is positive; on the contrary, when is negative (so, when the object is slowing down), the acceleration is negative.
