Answer:
Correct answer is (c) a global "repaving" that erased essentially all the surface features that had existed earlier
Explanation:
Venus underwent cyclic process which erased the proved of other craters about billion years back. This is termed Venus global resurfacing event.
Answer:
A time that is less than half an hour
Explanation:
it says velocity is positive so it would yield to a negative acceleration
Answer:
Forces 1 and 2 cannot have equal magnitudes.
Force 1 exceeds force 2.
Explanation:
Numbering the given statements:
- The force of the horse pulling on the cart.
- The force of the cart pulling on the horse.
- The force of the horse pushing on the road
.
- The force of the road pushing on the horse.
- When a horse pulls a cart along a flat road starting from the state of rest, the horse applies a force on the ground in downward-back direction diagonally and as its reaction it moves forward. During this action there is also a reaction force by the road on the horse which exceeds the force of the horse on the ground and as a result the horse moves forward.
- For pulling the cart the horse applies the force on the cart in the forward direction and as a reaction the cart applies a force on the horse in the backward direction which is less than the force of the horse on the cart resulting in the forward motion of the cart along with the horse.
Just like mass, energy, linear momentum, and electric charge, angular momentum is also conserved.
The wheel has angular momentum. I don't remember whether it's
up or down (right-hand or left-hand rule), but it's consistent with
counterclockwise rotation as viewed from above.
When you grab the wheel and stop it from spinning (relative to you),
that angular momentum has to go somewhere.
As I see it, the angular momentum transfers through you as a temporary
axis of rotation, and eventually to the merry-go-round. Finally, all the mass
of (merry-go-round) + (you) + (wheel) is rotating around the big common
axis, counterclockwise as viewed from above, and with the magnitude
that was originally all concentrated in the wheel.
Answer:
1.) True
2.) True
3.) False
Explanation:
1.) Oxidizing agents can convert co into co2.
This is true
Carbon monoxide burns in the oxygen to produce carbon dioxide
2.) A reducing agent gets oxidized as it reacts.
This is true
Because it loses electrons and is oxidized in a chemical reaction.
3.) If something is reduced, it is formally losing electrons.
This is false.
If something is reduced, it is gaining electrons.