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4 years ago

how does the tilt of earths axis affect the number of daylight hours and the temperature of a location on earth ?

1 answer:

8 0

The tilt can lead to darkness, for the sun is away from the Earth. The sun will reach the Earth at different times, and if it is further away, it will cause the temperature to change.

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Required information Problem 16.048 - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS NOTE: This is a multi-part question. Once

GaryK [48]

NOTE: The diagram is attached to this solution

Answer:

The acceleration of point A = 14.64 ft/s²

Explanation:

By proper analysis of the diagram, acceleration of point A will be: (Check the free body diagram attached)

$a_{A} = \bar{a} + \frac{\alpha L}{2}$

Weight, W = mg

g = 32.2 ft/s²

m = W/g

$p = m \bar{a}\\p = w \bar{a} /g$

$\bar{a} = pg/w\\\bar{a} = 0.25g/2.2\\\bar{a} =3.66$

$\frac{pL}{2} = I \alpha$

but $I = \frac{wL^{2} }{12g}$

$\frac{pL}{2} = \frac{\alpha wL^{2} }{12g}\\\alpha = \frac{6 g p}{wL}\\\alpha = \frac{6*g*0.25}{2.2L} \\\alpha = 21.96/L$

$a_{A} = 3.66 + \frac{(21.96/L ) * L}{2}\\a_{A} = 3.66 + 10.98\\a_{A} = 14. 64 ft/s^{2}$

6 0

4 years ago

A series circuit has a voltage supply of 12 V and a resistor of 2.4 kΩ. How much power is dissipated by the resistor?

adell [148]

Answer:

(B) 0.06W

Explanation:

power absorbed by the resistor is given by $\frac{V^2}{R}=I^2R$

Where V = voltage

R= resistance

I = current through the circuit

we have given V =12 Volt and resistance =2.4 K $\Omega$

current $I=\frac{V}{R}=\frac{12}{2.4\times 1000}=5\times 10^{-3}A=5mA$

power using voltage and resistance equation

$p=\frac{12^2}{2.4\times 1000}=60mW$ =0.06W

using current equation $P=I^2R=5^2\times 12=60mW$ = 0.06W

4 0

3 years ago

O D. Both objects won't move at all. They will just stay where they were released.

astraxan [27]

Answer:

Do not see a picture or graph but suspect it would show the golf ball falling faster and striking the ground slightly before the soccer ball.

Probably D: Soccer ball was affected by air resistance more than the golf ball.

Explanation:

Even though heavier, friction loss of the greater surface area soccer ball will counter pull of gravity more than the compact golf ball.

In a vacuum, (no friction) both objects fall at the same rate regardless of mass.

6 0

3 years ago

A wheelchair moves upward on a 7.1 degree ramp at a speed of 20km/h what is the horizontal velocity

Charra [1.4K]

Answer:

If the wheelchair is up 7.1 ft. In hight the time of flight should be 0.664 seconds and the distance should be 12.108 ft.

Explanation: I divided the displacement by the time and I used the equation Vx = 20 km/m

6 0

3 years ago

Calculate the velocity of the object in the graph during the following time interval 0-6 seconds. Also, during which time interv

cestrela7 [59]

Its accelarating from 1-10 i know that because the line is going up. i hope i helped

3 0

3 years ago