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vitfil [10]
3 years ago
5

Whats the difference between speed and velocity of an object

Physics
1 answer:
ss7ja [257]3 years ago
4 0
The difference between speed and velocity is that the speed is a scalar quantity which means that you can say that this object has a speed of x m/s but you don't have to define its direction
while the velocity is a vector quantity which means that you have to express the velocity by which it moves in x,y and z directions and its norm is the speed
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A force of 1000 newtons was necessary to lift a rock. A total of 3000 joules of work was done. How far was the rock lifted?
zhenek [66]

Answer: 3 meters

Explanation:

If you were to use a 3 line answer then it would look like this:

d = W/F

d = 3000/1000

d = 3 meters

8 0
2 years ago
1. When you talk into your paper cup telephone, the person on the other end can feel the bottom
kodGreya [7K]

Answer:

The correct answer is - the sound waves make vibration that travels through the string.

Explanation:

When an individual person talks into your paper cup telephone the person on the other end can feel the bottom of their cup vibrate. The sound waves create vibration go through the string that travels through the string to the end of the cup where vibrations can feel.

The sound waves are longitudinal waves that move or travel through different mediums like air, solid, or gas. The waves create vibration in the particles.

You could create a paper cup telephone but instead of using string, test out different materials and see if those materials will allow sound vibrations to travel through them

7 0
3 years ago
Identify conditions that can contribute to an increase in wind erosion.
nalin [4]
Lake effect is one condition

Sorry if this didn't help- I'm not quite sure what you're asking.
8 0
3 years ago
Read 2 more answers
Compare and Contrast the two main branches of physical science. How are they the same? How are they different?
nignag [31]
Physics
Chemistry


Physical science is science which studies non-living things.This covers things on earth to the universe.The main branches are physics and chemistry.The other sub-branches are Astronomy, meteorology and Geology.Physics is concerned with the basic principals of matter and energy.It covers concepts in motion, energy, force, pressure , light and many other areas we encounter in our day to day life.Chemistry is concerned with composition of matter and how it reacts.Material in chemistry is understood through observing molecules, atoms, elements and their interaction in nature including their properties.Chemistry is further divided into organic chemistry and natural chemistry sub-branches.

Hope this helps you!!!
8 0
2 years ago
Typical Pressurized Water Reactors can produce 1100 to 1500
lozanna [386]

Answer: about 1,100,000,000 to 1,500,000,000 Joules/second

Explanation:

1 MW (megawatt) = 1,000,000.00 J/s (joules per second)

1100(1,000,000) = 1,100,000,000

1500(1,000,000) = 1,500,000,000

3 0
2 years ago
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