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3 years ago

Plz do all of it i will give brainlest and thanks to best answer plz do it right

Physics

1 answer:

Sladkaya [172]3 years ago

8 0

Answer: The answer is B: Convection

Explanation: Convection transfers heat through a movement of fluids but in this case its through air hope this helps :)

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A 2.0kg cart moving right at 5.0 m/s on a frictionless track collided and sticks to a 3.0 kg cart moving left at 3.0 m/s. What i

Mrac [35]

Answer:

the final speed is 0.20

8 0

3 years ago

FIGURE 4.1 shows a rectangular wire loop 0.3 m x 0.2 m moving horizontally to the right at 12 ms -1 in a uniform magnetic field

timama [110]

<h3><u>Given :- </u></h3>

Length of the rectangular wire, L=0.3 m
Width of the rectangular wire, b=0.2m
Magnetic field strength, B=0.8 T
Velocity of the loop, v =12 m/s
Induced Current, I = 3 A

$\underline{\underline{\large\bf{Solution:-}}}\\$

(I) Emf developed,E in the loop is given as:

$\begin{gathered}\\\implies\quad \sf E = BLv \\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf E = 0.8 \times 0.3 \times 12 \\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf E = 2.88 V \\\end{gathered}$

$\longrightarrow$ I = E/R

$\quad$ R = E/I

where

R = resistance
E = Induced EMF
I = Current

$\begin{gathered}\\\implies\quad \sf R = \frac{2.88}{3} \\\end{gathered}$

$\begin{gathered}\\\implies\quad \boxed{\sf{ R = 0.96 \;ohm}}\\\end{gathered}$

(ii) The direction of current induced is from P to Q which is given by B × V vector . It may also be explained by Lenz law. Since magnetic field is from S to N . The fingers of the right hand are placed around the wire so that the curling of fingers will show the direction of the magnetic field produced by the wire then the thumb points in the direction of current flow which is from P to Q.

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2 years ago

An exercise program that lacks specific goals is failing what fitness principle?

lbvjy [14]

The answer is progression

6 0

4 years ago

Read 2 more answers

If you measured 25 g jelly beans and 25 g of gumdrops, the number of jellybeans would be

KengaRu [80]

The number of jellybeans would be B.more than the gumdrops.

Please rate brainliest.

7 0

3 years ago

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The diagram shows a multi-tap transformer. Which pair of terminals would you connect to produce an output voltage of 8 V?

Triss [41]

Answer:

The pair of terminals to produce an output voltage of 8V are K and M.

Explanation:

A transformer is an electronic device that can be used to increase or decrease an output voltage. It consists of secondary and primary coils, and operates on the principle of induction.

$\frac{V_{s} }{V_{p} }$ = $\frac{N_{s} }{N_{p} }$

where: $V_{s}$ is the voltage in the secondary coil, $V_{p}$ is the voltage in the primary coil, $N_{s}$ is the number of turns in the secondary coil and $N_{p}$ is the number of turns in the primary coil.