A personal narrative is a true story that cannot include any imaginary or creative writing techniques

An alternating current is supplied to an electronic component with a warning that the voltage across it should never exceed 12 V

EastWind [94]

Answer:

The highest rms voltage will be 8.485 V

Explanation:

For alternating electric current, rms (root means square) is equal to the value of the direct current that would produce the same average power dissipation in a resistive load

If the peak or maximum voltage should not exceed 12 V, then from the relationship

$V_{rms} = \frac{V_{p} }{\sqrt{2} }$

where $V_{rms}$ is the rms voltage

$V_{p}$ is the peak or maximum voltage

substituting values into the equation, we'll have

$V_{rms} = \frac{12}{\sqrt{2} }$ = 8.485 V

8 0

2 years ago

Draw the vector C⃗ =A⃗ +2B⃗ .

spin [16.1K]

Answer:

A) C is 2 units towards right

B) C is 9 units towards right and 3 units towards up

C) C is 4 units towards right and 1 unit towards down

Explanation:

Drawings are given in the attachment.

A)Since,

A is 4 units towards right,

B is 1 unit towards left,

Then,

C is 2 units towards right.

B) Since,

A is 4 units towards right and 2 units towards up,

B is 1 unit towards left,

Then,

C is 9 units towards right and 3 units towards up.

C) Since,

A is 4 units towards right and 2 units towards up,

B is 1 unit towards right, and 1 unit towards down

Then,

C is 4 units towards right and 1 unit towards down.

4 0

3 years ago

1. Roger tosses a ball straight upward at a velocity of +32m/s, calculate the maximum height of the ball and the time to get to

denis-greek [22]

Given data:

* The initial velocity of the ball is 32 m/s.

* The acceleration due to gravity of the ball is,

$g=9.8ms^{-2}$

* The final velocity of the ball is 0 m/s.

Solution:

(a). By the kinematics equation, the maximum height of the ball is,

$v^2-u^2=-2gh$

where v is the final velocity, u is the initial velocity, h is the maixmum height, and g is the acceleration due to gravity,

Substituting the known values,

$\begin{gathered} 0-(32)^2=-2\times9.8\times h \\ 1024=19.6h \\ h=\frac{1024}{19.6} \\ h=52.24\text{ m} \end{gathered}$

Thus, the maximum height of the ball is 52.24 m.

(b). By the kinematic equation, the time taken by the ball to reach the maximum height is,

$\begin{gathered} v-u=-gt \\ 0-32=-9.8\times t \\ 32=9.8t \\ t=\frac{32}{9.8} \\ t=3.26\text{ s} \end{gathered}$

Thus, the time taken by the ball to reach the maximum height is 3.26 seconds.

8 0

5 months ago

Betsy created the following mnemonic device to help her remember the order of the planets starting from the Sun: “Most Very Eleg

Paraphin [41]

Answer:

A

Explanation:

The order of the planets in the solar system, starting nearest the sun and working outward is the following: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

5 0

2 years ago

A roller coaster's velocity at the bottom of a hill is 35.0 m/s, 5.00 seconds later it reaches the top of the hill with a veloci

anyanavicka [17]

Answer:

5 m /s^2

Explanation:

Change in velocity = 35 - 10 = 25 m/s

change in time = 5 s

decelleration = 25/5 = 5 m/s^2

4 0

1 year ago