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3 years ago

When performing a battery load test, what should the load be set to?

Physics

1 answer:

ASHA 777 [7]3 years ago

3 0

Answer:

here you go

Explanation:

1. With a battery load tester, apply a load equal to one-half of the CCA rating of the battery for 15 seconds. ...

2. With a battery load tester, apply a load equal to one-half the vehicle's CCA specification for 15 seconds.

3. Disable the ignition and turn the engine over for 15 seconds with the starter motor.

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You stand on a straight desert road at night and observe a vehicle approaching. This vehicle is equipped with two small headligh

zhuklara [117]

Complete Question

You stand on a straight desert road at night and observe a vehicle approaching. This vehicle is equipped with two small headlights that are 0.681 m apart. At what distance, in kilometres, are you marginally able to discern that there are two headlights rather than a single light source?Take the wavelength of the light to be 549 nm and your pupil diameter as 4.63 mm.

Answer:

The distance is $z = 4707.6 \ m$

Explanation:

From the question we are told that

The is distance between the headlight is $d = 0.681 \ m$

The wavelength is $\lambda = 549 \ nm = 549 *10^{-9} \ m$

The pupil diameter is $D = 4.63 \ mm = 0.00463 \ m$

Generally, we can mathematically evaluate the resolution of the eye as

$\theta = \frac{1.22 * \lambda }{D}$

substituting values

$\theta = \frac{1.22 * 549 *10^{-9} }{0.00463}$

$\theta = (1.45 *10^{-4} )^o$

Now according to SOHCAHTOA rule

$sin \theta = \frac{ d}{z}$

Where z is the distance at which the eye can discern the two head light

given that the angle is very small $sin \theta = \theta$

=> $\theta = \frac{ d}{z}$

substituting values

$1.45*10^{-4} = \frac{ 0.681}{z}$

=> $z = \frac{0.681}{1.45 *10^{-4}}$

=> $z = 4707.6 \ m$

6 0

4 years ago

What happens to the gravitational force between two objects as the distance between them decreases?

Harlamova29_29 [7]

Answer:

gravitational force increases

Explanation:

Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are brought closer to each other, the force of gravitational attraction between them also increases.

7 0

3 years ago

A person runs at a speed of 4 meters per second. How far will the person travel in 40 seconds? A. 160 meters B. 44 meters C. 40

ahrayia [7]

Answer:

The answer is A) 160 Meters.

Explanation:

To determine the distance (d) traveled by a body given its speed (S) and the time (t). Use the equation,

S = d / t ; d = S x t

Substituting the known values to the equation,

d = (4 m/s ) x (40 s) = 160 m

Thus, the person will travel 160 meters in 40 seconds.

6 0

3 years ago

A ball is dropped from the top of a building that is known to be 400 feet high. The formula for finding the height of the ball a

Ira Lisetskai [31]

Answer:

3 seconds

Explanation:

Height of the building = 400 feet

Height of the ball from the ground is given by

h=400−16t²

This formula has been derived from

$s=ut+\frac{1}{2}at^2$

a = Acceleration due to gravity = 32 ft/s²

u = Initial velocity = 0

t = Time taken

Substituting all the values we get

$s=0t+\frac{1}{2}32t^2\\\Rightarrow s=16t^2$

This is the height of the ball from the top of the building

The height of the ball from the ground will be

h = 400-s

⇒h = 400−16t²

When h = 256 ft

$256=400-16t^2\\\Rightarrow t=\sqrt{\frac{256-400}{-16}}\\\Rightarrow t=3\ s$

Time taken by the ball to reach a height of 256 feet above the ground is 3 seconds

4 0

4 years ago

You are learning about energy transformations in science class. Mel and Sam's built this set-up to see if light energy could be

Allisa [31]

I think it might be heat energy. light transforms into heat energy

5 0

3 years ago

When performing a battery load test, what should the load be set to?​

When performing a battery load test, what should the load be set to?