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OlgaM077 [116]
3 years ago
10

A positive electric charge is moved at a constant speed between two locations in an electric field, with no work done by or agai

nst the field at any time during the motion. This situation can occur only if the
Physics
1 answer:
Ad libitum [116K]3 years ago
5 0

Answer:

The options are

A) charge is moved in the direction of the field

(B) charge is moved opposite to the direction of the field

(C) charge is moved perpendicular to an equipotential line

(D) charge is moved along an equipotential line

(E) electric field is uniform

The answer is (D) charge is moved along an equipotential line

For all the criteria in the question to be met it means that the motion is perpendicular to the field and the force is perpendicular to the displacement of the charge respectively. In this scenario,

Change in velocity is zero. Work can be calculated by multiplying charge and change in velocity which when calculated will give zero.

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Newtons thrid law of motion describes?
ki77a [65]
Newtons third law of motion is:

for every action, there is an opposite and equal reaction

Hope this helps!
4 0
3 years ago
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A space shuttle orbits Earth at a speed of 21,000 km/hr. How far does it go in 3.5 hrs?
inn [45]
Since it travels at 21,000 kilometers per hour, you'd just multiply that with 3.5 to get 73,500. So your answer is 73,500.

5 0
4 years ago
Suppose you made 5 measurements of the speed of a rocket:10.2 m/s, 11.0 m/s, 10.7 m/s, 11.0 m/s and 10.5 m/s. From these measure
Sav [38]

Answer:

mean = 10.68 m/s

standard deviation 0.3059

[/tex]\sigma_m = 0.14[/tex]  

Explanation:

1) Mean = \frac{ 10.2+11+10.7+11+10.5}{5}

  mean = 10.68 m/s

2 ) standard deviation is given as

\sigma = \sqrt{ \frac{1}{N} \sum( x_i -\mu)^2}

N = 5

   \sigma =\sqrt{ \frac{1}{5} \sum{( 10.2-10.68)^2+(11-10.68)^2 + (10.7- 10.68)^2+ (11- 10.68)^2++ (10.5- 10.68)^2

SOLVING ABOVE RELATION TO GET STANDARD DEVIATION VALUE

\sigma  = 0.3059

3) ERROR ON STANDARD DEVIATION

\sigma_m = \frac{ \sigma}{\sqrt{N}}

               = \frac{0.31}{\sqrt{5}}

\sigma_m = 0.14  

3 0
3 years ago
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Consider a rigid body that rotates but whose center of mass is at rest. a. Trueb. false: the rotational kinetic energy of the en
Fiesta28 [93]

Answer:

Explanation:

True

It is correct as the total rotational energy is the sum of transnational kinetic energy of each small piece of the object.

Consider a rigid body made of small particles each of mass dm have same angular velocity ω and the radius of the rotational path is r.

The velocity of each particle is v = r ω

So, the kinetic energy of each particle is

dK = 0.5 dm x v² = 0.5 x dm x r² x ω²

The total kinetic energy

K = 0.5 x I ω²

where, I is the moment of inertia

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3 years ago
What type of resource can be regenerated or replenished by biochemicl cycles
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A: A resource that will always be there, can be replenished by the biogeochemical cycles. B: Can regenerate if they are alive or can be replenished by biochemical cycles if they are non living.

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3 years ago
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