Example of scalar: speed. Example of vector: velocity
Explanation:
In physics, there are two types of quantities:
- Scalar: a scalar quantity is a quantity having only magnitude, so it is just a number followed by a unit. Examples of scalar quantities in physics are:
Mass
Time
Speed
- Vector: a vector quantity is a quantity having both a magnitude and a direction. Examples of vector quantities in physics are:
Force
Acceleration
Velocity
The two types of quantities can be used in the same event, but in a different way. One of the most common example is the difference between speed and velocity.
In fact, let's consider an object moving in a uniform circular motion: it means that it is moving in a circle at a constant speed. The speed of the object measures only how fast the object is moving, but without telling anything about its direction of motion. The velocity, viceversa, also takes into account the direction of motion, and exactly for this reason, the velocity in a uniform circular motion is not constant, because the direction (it is a vector) is constantly changing. So, in a uniform circular motion, the speed is constant but the velocity is not.
Learn more about vectors:
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Answer:
The vapour pressure of water is great tah 50 than it is 10.
A) protostar. a main sequence star is a star like our sun. a white dwarf is the end of a stars life. a red giant is a star in its final stages.
Answer:
The steps are made to overcome the negative effect of friction or to increase the friction in the mud.
Explanation:
The following step can be taken when the 4 wheels of our 4 wheeler stuck in the mud are:
(a) First put some sand or rock near the tires to increase the friction to overcome the slipping of tires.
(b) Try to reverse the car and stop and will try to accelerate in the forward direction.
(c) Use the rope, by which one end can be tie to the tree another to the car and then accelerate.
(d) Put some wooden blocks in between the tires which can help.
Answer:
A. Magnetism
B. Spring
( I'm not so sure about the second answer, but I'm certain about the first one)
Explanation:
