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kirill [66]
4 years ago
14

The main difference between speed and velocity involves

Physics
2 answers:
ad-work [718]4 years ago
7 0
D. Direction, if someone is traveling on an interstate from New York to Boston at 65 MPH, the speed of the car is 65 MPH and the velocity is 65 MPH north-east.
inn [45]4 years ago
3 0
Speed does not include direction.
Velocity includes direction. 

Therefore, the main difference between speed and velocity is D. Direction.

FINAL ANSWER: D. direction
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Plz help 20 points!!
vazorg [7]

Answer:

1-d

2- a

3-e

4-b

5-c

This is the correct sequence

5 0
2 years ago
In Physics, work depends on two factors. What are those two<br> factors?
Aloiza [94]

Answer:

Force and displacement.

Explanation:

Work done is positive when we push table and it move in the direction of applied force.

5 0
3 years ago
Two large thin metal plates are parallel and close to each other. On their inner faces, the plates have excess surface charge of
wariber [46]

Answer:

For left = 0  N/C

For right = 0  N/C

At middle = -7.6836 * 10^{-11} \vec{i}  N/C

Explanation:

Given data :-

б =6.8 * 10^{-22} C/ m²

Considering the two thin metal plates to be non conducting sheets of charges.

Electric field is given by

E = \frac{\sigma }{2\varepsilon }

1) To the left of the plate

\vec{E}= (\frac{\sigma }{2\varepsilon })(-\vec{i})+  (\frac{\sigma }{2\varepsilon })(\vec{i})   = 0 N/C.

2) To the right of them.

\vec{E}= (\frac{\sigma }{2\varepsilon })(-\vec{i})+  (\frac{\sigma }{2\varepsilon })(\vec{i})   = 0 N/C.

3) Between them.

\vec{E}= (\frac{\sigma }{2\varepsilon })(-\vec{i})+  (\frac{\sigma }{2\varepsilon })(-\vec{i}) = (\frac{\sigma }{\varepsilon })(-\vec{i}) = -\frac{6.8 * 10^{-22} }{8.85 * 10 ^{-12} }  \vec{i} =   -7.6836 * 10^{-11} \vec{i} N/C

5 0
3 years ago
Which of the following is one way that an electric motor's rotation speed can be controlled?
malfutka [58]
Depending on which type of motor you're talking about, but the first 3 are true.  A stronger magnetic field in a DC motor will slow it down but increase its torque.
The amount of current in the motor will control the magnetic fields and therefore affect the speed (and torque).  In an induction motor, the rotational speed is given by n= \frac{120f}{p}  where f is the line frequency and p is the number of poles.  Thus fewer poles makes it go faster.
5 0
3 years ago
Read 2 more answers
Which of earth sphere have the most mass
DochEvi [55]
The Geosphere which is 99.94% of earths mass
6 0
3 years ago
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