Answer:
I believe it would be E)none of the above.
Explanation:
Positive ions from a base and negative
ion from an acid form salt.
<span>To add, table
salt or common salt is a mineral composed primarily of sodium chloride, a
chemical compound belonging to the larger class of salts. Rock salt or halite
is also the common term for salt in its natural form.</span>
It’s 4. Definitely 4. 99% sure it’s 4.
Answer:
See the explanation below.
Explanation:
A lever is a simple machine that changes the magnitude and direction of the force applied to move an object. Minimizes the force needed to lift the object.
By means of the following image, we can see the principle of operation of a lever.
The load can be moved thanks to the force multiplied by the distance to the fulcrum.
Answer:
Mass of the car is 1576 kg.
Explanation:
Let the mass of the car be kg.
Given:
Initial velocity of the car is,
As the car stops, final velocity of the car is,
Change in momentum is,
Now, we know that, momentum is given as the product of mass and velocity.
So, change in momentum is given as:
Therefore, the mass of the car is 1576 kg.