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maksim [4K]
3 years ago
11

What is the difference between speed and velocity? Speed is rate of motion of an object and velocity is what direction Speed is

rate of motion of an object and velocity is how long it takes Speed is rate of motion of an object and velocity is speed with a direction Velocity is rate of motion of an object and speed is what directio
Physics
1 answer:
yanalaym [24]3 years ago
4 0

Answer:

yes you are correct just try not to say speed so much

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A parallel-plate capacitor initially has a potential difference of 400 V and is then disconnected from the charging battery. If
Damm [24]

The capacitance of a capacitor is the ratio of the stored charge to its potential difference, i.e.

C = Q/ΔV

C is the capacitance

Q is the stored charge

ΔV is the potential difference

Rearrange the equation:

ΔV = Q/C

We also know the capacitance of a parallel-plate capacitor is given by:

C = κε₀A/d

C is the capacitance

κ is the capacitor's dielectric constant

ε₀ is the electric constant

A is the area of the plates

d is the plate separation

If we substitute C:

ΔV = Qd/(κε₀A)

We assume the stored charge and the area of the plates don't change. Then if we double the plate spacing, i.e. we double the value of d, then the potential difference ΔV is also doubled.

5 0
3 years ago
An object starts at the 100 m mark and ends up at the -100 m mark, 50
horsena [70]
It traveled 200 m in 50 seconds. 200/50 can be simplified to 4 m/s!
The velocity is -4 m/s (negative because it travelled from 100 to -100 or backwards)
8 0
2 years ago
How does the flatter design make sweeping the floor easier
Ratling [72]

Answer:

there will be no cracks so the trash won't get stuck

5 0
3 years ago
Which of these statements are true about hydroelectric power? A.It is the most widely used renewable energy source in the world.
Ede4ka [16]
D is the answer most true
6 0
3 years ago
– A man walks 50 meters due west, then 50 meters 60 north of west. Determine the magnitude and direction of the resultant disp
Fynjy0 [20]

Answer:

86.6, 45°

Explanation:

The diagram explains better.

Using vector component method:

We find the x and y components of the vectors :

For the first:

A = -50cos(0)i + 50sin(0)j

A = -50i

For the second:

B = -50cos(60)i + 50sin(60)j

B = -25i + 43.3j

The resultant vector is :

R = A + B

R = -50i - 25i + 43.3j

R = -75i + 43.3j

The magnitude is:

R = [(-75)² + (43.3)²]^½

R = 86.6m

The angle is

tanθ = (50/50) = 1

θ = 45°

5 0
3 years ago
Read 2 more answers
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