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lozanna [386]
3 years ago
11

Describe the direction of the electric force between two opposite charges, between two like charges, and when a charge is in an

electric field.
Physics
1 answer:
weqwewe [10]3 years ago
8 0

Answer:

A metal sphere is neutral because it has an equal number of protons and electrons. Draw how the charges in the sphere are redistributed when a negatively charged rod is brought near it.

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List five examples from daily life in which you see periodic motion caused by a spring or cord.
dmitriy555 [2]

car suspension

guitar string

clips for hanging clothes

keyboards buttons

elevators

4 0
3 years ago
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If the speedometer of your car reads a constant speedometer of your car reads a constant speed of 40km/hr , can you say the car
Harrizon [31]
I think u can say thats a constant velocity, but remember if ur turning, or going around a curve, that is also changing velocity. Hope this helps have a great day! 
4 0
3 years ago
What is the Mr of HCO3
kkurt [141]

Answer:

61.0168 g/mol Explanation:

8 0
2 years ago
Two curling stones collide on an ice rink. Stone 1 has a mass of 16 kg
nika2105 [10]

Answer:

53.57 kg or 54 kg

-.81 m/s

Explanation:

m2=\frac{v}{vf2} \\ (2m1) -m1

v1f= (\frac{m1-m2}{m1+m2})v

4 0
3 years ago
A mass attached to a vertical spring causes the spring to stretch and the mass to move downwards. What can you say about the pot
poizon [28]

Complete Question

A mass attached to a vertical spring causes the spring to stretch and the mass to move downwards. What can you say about the spring's potential energy Us and the gravitational potential energy Ug of the mass?

A. both Us and Ug decrease

B. Us increases and Ug decreases

C Both Us and Ug increase

D Us decreases and Ug increases

E Us increases and Ug is constant

Answer:

Option B is the correct Answer

Explanation:

    The Gravitational Potential energy is mathematically represented as  

                    U_g = mgh

Where m is the mass , g is the acceleration due to gravity while and h is the height

 And in term of the spring  this energy represents the workdone against gravitational Force

 The Spring potential energy is mathematically represented as

                     U_s = \frac{1}{2} k x^2

Where k is the spring constant ans  x is the extension in the spring

   And energy represents the work that is being done to stretch the spring

 If the system as state in the question is setup and U_s is being increased then U_g decreases

   

8 0
3 years ago
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