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4 years ago

Write the equation for speed

Physics

1 answer:

zzz [600]4 years ago

7 0

Answer:

Distance / Time = Speed

Explanation:

This is because you want to see how much distance you cover within a time interval.

For example, MPH, is a unit for speed, which is miles (distance) per hour (time)

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Which list shows the development of atomic models in chronological order?

ikadub [295]

I think it would be plum pudding, solid ball, solar system.

8 0

3 years ago

A physicist performing a sensitive measurement wants to limit the magnetic force on a moving charge in her equipment to less tha

lawyer [7]

Answer:

Maximum charge will be $6.66\times 10^{-9}C$

Explanation:

We have given force ion the moving charge $F=10^{-12}N$

Maximum speed of the moving charge v = 30 m /sec

Magnetic field $B=5\times 10^{-5}T$

We have to fond the charge

Force on moving charge is given by

$F=qvB$

So $10^{-12}=q\times 30\times 5\times 10^{-5}$

$q=6.66\times 10^{-9}C$

Maximum charge will be $6.66\times 10^{-9}C$

5 0

4 years ago

Two parallel plates 19 cm on a side are given equal and opposite charges of magnitude 2.0 ✕ 10^−9 C. The plates are 1.8 mm apart

Romashka [77]

Answer:

E = 5291.00 N/C

Explanation:

Expression for capacitance is

$C = \frac{\epsilon A}{d}$

where

A is area of square plate

D = DISTANCE BETWEEN THE PLATE

$C = \frac{\epsilon\times(19\times 10^{-2})^2}{1.5\times 10^{-3}}$

$C = 24.06 \epsilon$

$C = 24.06\times 8.854\times 10^{-12} F$

$C =2.1\times 10^{-10} F$

We know that capacitrnce and charge is related as

$V = \frac{Q}{C}$

$= \frac{2\tiimes 10^{-9}}{2.\times 10^{-10}}$

v = 9.523 V

Electric field is given as

$E = \frac{V}{d}$

= $\frac{9.52}{1.8*10^{-3}}$

E = 5291.00 V/m

E = 5291.00 N/C

5 0

3 years ago

. A horizontal steel spring has a spring constant of 40.0 N/m. What force must be applied to the spring in order to compress it

ANEK [815]

Ans 4 more to be exact

Explanation:

7 0

3 years ago

What are the two ways that electrical current can travel while energizing devices and homes? Explain how the direction of travel

nexus9112 [7]

<span> In AC (alternating current) flow, like what comes out of your wall, the flow of electrons changes direction 60 times per second (50 times per second in Europe, China, etc). But in DC (direct current) flow, the average flow of electrons is in one direction only.
I hope it helped you</span>

5 0

3 years ago