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3 years ago

When starting to slide down a waterslide, why would a person push on the sides of the slide?

2 answers:

6 0

The correct answer is B
Explication: this is because the person is trying to make themselves move so they can go down the slide.

katrin2010 [14]3 years ago

5 0

B because he’s trying to go faster and move his body or the tube

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A transformer connected to a 120-v(rms) at line is to supply 13,000V(rms) for a neon sign.

lyudmila [28]

Answer:

(a) 108

(b) 110.500 kW

Solution:

As per the question:

Voltage at primary, $V_{p} = 120\ V$ (rms voltage)

Voltage at secondary, $V_{s} = 13000\ V$ (rms voltage)

Current in the secondary, $I_{s} = 8.50\ mA$

Now,

(a) The ratio of secondary to primary turns is given by the relation:

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

where

$N_{p}$ = No. of turns in primary

$N_{s}$ = No. of turns in secondary

$\frac{N_{s}}{N_{p}} = \frac{13000}{120}$ ≈ 108

(b) The power supplied to the line is given by:

Power, P = $V_{s}I_{s} = 13000\times 8.50 = 110.500\ kW$

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

$\frac{13000}{120} = \frac{I_{p}}{8.50}$

$I_{p} = \frac{13000}{120}\times 8.50 = 920.84\ A$

6 0

3 years ago

A common activity like cooking a meal can use many natural _________.

olganol [36]

A common activity like cooking a meal can use many natural Ingredients

<h3>Ingredients </h3>

Ingredients are substances combined to make a particular mixture such as a meal. most of the ingredients used for the preparation of a meal are sourced naturally.

In cooking different recipes of a meal the use of specific ingredients for each recipe differentiates the recipes.

Therefore we can conclude that cooking a meal requires the use of natural ingredients.

Learn more about cooking ingredients : brainly.com/question/1119876

6 0

2 years ago

What is the physical state of water at 250°C?

mars1129 [50]

It is probably gas as pure water starts boiling at 100d degrees C

7 0

3 years ago

What is the correct definition of speed.

Effectus [21]

Explanation:

Speed is defined as distance per time (miles per hour or meter per second)

7 0

3 years ago

Read 2 more answers

What is the electric field at the position (x2,y2)=(−5.0cm , 0cm) in component form?

insens350 [35]

Complete Question: A +10 nC charge is located at the origin. What is the electric field at the position (x2,y2)= (-5.0cm, 0cm)? Write electric field vector in component form.

E2x, E2y=? N/C

Answer:

Ex = -3.6*10⁴ N/C Ey=0

Explanation:

As the charge producing the field is positive, the direction of the field, which is the one that would take a positive test charge located in the point of interest, will be away from this point, pointing to the left.

If we choose the positive direction to be to the right, the electric field component along the x-axis will be negative.

The magnitude of the field can be obtained applying the electric field definition, and the Coulomb's Law to the charge in the origin, as follows:

E = k*q/r² = 9*10⁹N*m²/C²*10⁻⁸C/(0.05)² m² = 3.6*10⁴ N/C

As the electric field follows the same line as the electric force, it has only component on the x axis, so:

Ex = -3.6*10⁴ N/C

Ey = 0

4 0

3 years ago