You have been hired as part of a research team consisting of ... Torque: After watching a news story about a fire in a high rise apartment building, you and your friend decide to design an emergency escape device from the top ... To avoid engine failure, your friend suggests a gravitational powered elevator.

Explanation:

6 0

4 years ago

A closed box has two metal terminals a and b. The inside of the box contains an unknown emf 8 in series with a resistance R. Whe

Lelu [443]

Answer:

The value of $\epsilon$ and R are 12.9 ohm and 2.6 V.

Explanation:

Given that,

Potential difference = 22.0 V

Current = 1.50 A

If this potential difference is reversed,

Then the current = 1.90 A

In forward direction

The net emf is

$\epsilon=(\epsilon+22.0)\ V$

The net current is

$I=\dfrac{V}{R}$

$1.50=\dfrac{\epsilon+22.0}{R}$ ...(I)

In reverse direction

$1.90=\dfrac{22.0-\epsilon}{R}$ ...(II)

From equation (I) and (II)

$\epsilon =2.6\ V$

$R = 12.9\ Omega$

Hence, The value of $\epsilon$ and R are 12.9 ohm and 2.6 V.

8 0

3 years ago

How many octants are in the three-dimensional coordinate system?

Akimi4 [234]

There are eight octants in the three-dimensional coordinate system. From the word octants you can easily say or associate it to the number 8. Hope this answers the question. Have a nice day. Feel free to ask more questions.

8 0

4 years ago