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3 years ago

Does anyone know how to solve series parallel and combo circuits

Physics

1 answer:

tamaranim1 [39]3 years ago

5 0

Answer:

Your teacher is out of her/his mind, what is he thinking

Explanation:

my dear friend, i feel sorry for you, poor thing T_T

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The net external force on the propeller of a 3.0 kg model airplane is 6.8 N forward.What is the acceleration of the airplane? An

solong [7]

The correct answer to the question is 2.27 $m/s^2$ i.e the acceleration of the body is 2.27 $m/s^2$ along the forward direction.

CALCULATION:

As per the question, the net external force on the propeller of model airplane F = 6.8 N.

The mass of the model air plane m = 3.0 kg

We are asked to calculate the acceleration of the air plane.

From Newton's second law of motion, we know that the net external force acting on a body is equal to the product of mass with acceleration of that body.

Mathematically force F = m × a

⇒ $a=\ \frac{F}{m}$

$=\ \frac{6.8\ N}{3.0\ kg}$

$=\ 2.27\ m/s^2$ [ans]

The direction of acceleration is along the direction of force. Hence, the acceleration of the propeller is 2.27 $m/s^2$ along forward direction.

8 0

4 years ago

A glass bottle of soda is sealed with a screw cap. The absolute pressure of the carbon dioxide inside the bottle is 1.50 x 105 P

MArishka [77]

Answer:

$F \approx 19.5 N$

Explanation:

From the question we are told that:

Pressure of $P_{CO_2}=1.50 * 105 Pa.$

Bottle cap area $A_b= 4.40 * 10-4 m^2$

Generally the equation for Resultant pressure $P_r$ is give as is mathematically given by

$P_r=P_{CO_2}-P_a$

Where

$P_a=atmospheric\ pressure = 1.013*10^5 pa$

$P_r=1.50 * 105 Pa-1.013*10^5 pa$

$P_r=0.487*10^5 pa$

Generally the equation for Force exerted by screw F is give as is mathematically given by

$F = P*A\\F = 0.487*10^5*4.00*10^-4\\ F = 19.48 N$

$F \approx 19.5 N$

4 0

3 years ago

An airplane is flying in a horizontal circle at a

ludmilkaskok [199]

Answer:

181 m

Explanation:

a = v² / r

6.09 (9.81 m/s²) = (104 m/s)² / r

r = 181 m

8 0

3 years ago

You are riding shotgun in a 2000 kg race car. The driver makes a sharp turn going 60 m/s which throws you into the door with a f

givi [52]

Answer:39600

Explanation:f=mv2/r

R=mv2/f

60(60)2/6000

=39600

7 0

3 years ago

A speeding car collides with an unlucky bug flying across the road. Which explains why the impact doesn’t equally damage the car

velikii [3]

The bug was a lot smaller than the car, that's for sure. The car is bigger and sturdier, while the bug is smaller and frail. The bug is so frail, that rather that putting a dent in the car, it splatters all over the car. The bug is very damaged (obviously), while the car just needs a good wash.

8 0

4 years ago