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4 years ago

PLZ HELP!!! best answer gets brainliest

Physics

1 answer:

Doss [256]4 years ago

3 0

Batteries convert chemical energy into electrical energy. It is able to store electrical energy in the form of chemical energy.
Have you ever seen the two different sides of a battery? One side is often labelled with a positive sign, and the other with a negative sign. Inside the battery are four cells where two processes take place. One process uses electrons, and the other creates electrons. When the electrons flow, it creates electricity.
Drums convert mechanical energy into sound energy.
When a musician bangs his/her drumstick on the drum, the motion makes a sound. This movement turned motion into sound.

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I WILL MARK BRAINLIEST IF CORRECT!!!

Akimi4 [234]

Answer:

I'm fairly sure that the answer is "100 m/s"

Explanation:

Fnet=ma

a=Fnet/m

a=4 N / 0.040 kg

a=100 m/s

please check my work before you submit, i don't wanna let cha down :)

5 0

3 years ago

Pls answer need help

igomit [66]

Answer:

See below

Explanation:

Find the NET forces on the objects

A 20==>

B 0

C 30==>

D 15==>

So biggest accel = C because it has the most force acting on it

next is A because it has the next biggest force

next is D then B ...B has no net force acting on it

6 0

3 years ago

What is the formula for acceleration? ( PLEASE HELP! ALSO IF YOU GET B IT'S WRONG BECAUSE I ALREADY PUT THAT AND IT WAS WRONG so

skad [1K]

Answer:

option A is correct

Explanation:

acceleration the time rate of change of velocity or speed so

a=Δv/t

Δv=vf-vi

Δv= final speed-initial speed

now a=final speed-initial speed/time

3 0

4 years ago

Multiply each of these numbers using SIG FIGS. (Significant Figures) 5 x 5 6.0 x 70

SOVA2 [1]

∑ Hey, Lethality ⊃

Answer:

5 x 5 = 30

6.0 x 70 = 400

Explanation:

Given:

Multiply each of these numbers using SIG FIGS. (Significant Figures)

5 x 5

6.0 x 70

Solve:

-------------------------------------------------------------------------------------------------------------

5 x 5
25
30

Answer : 30

Significant Figures: 1

-------------------------------------------------------------------------------------------------------------

6.0 x 70

420

400

Answer: 400

Significant Figures: 1

-------------------------------------------------------------------------------------------------------------

xcookiex12

8/23/2022

6 0

2 years ago

A charge of 0.20uC is 30cm from a point charge of 3.0uC in vacuum. what work is required to bring the 0.2uC charge 18cm closer t

vlada-n [284]

Answer:

The correct answer is " $4.49\times 10^{10} \ joules$ ".

Explanation:

According to the question,

The work will be:

⇒ $Work=-\frac{kQq}{R}$

$=-\frac{1}{4 \pi \varepsilon \times (18-30)\times 3\times 0.2}$

$=-\frac{1}{4 \pi \varepsilon \times (-12)\times 3\times 0.2}$

$=\frac{0.3978}{\varepsilon }$

$=4.49\times 10^{10} \ joules$

Thus the above is the correct answer.

3 0

3 years ago

PLZ HELP!!! *best answer gets brainliest*

PLZ HELP!!! best answer gets brainliest