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4 years ago

When using wooden pallets to store batteries, place the pallets on sand or gravel?

Physics

2 answers:

Serjik [45]4 years ago

8 0

The correct awnser is true i belive

TRUE

Firdavs [7]4 years ago

5 0

Answer

It is false

Explanation:

In old days it was assumed that if we place wooden pallets on concrete. The casing of pallets may break down and their may be leakage of battery. So to protect the case, people placed the pallets on sand or gravel.

Here they use the concept that if you place a glass jar on concrete with a force it may got a crack and if you place this glass jar with same force on sand it will not break.

But it is not true because pallets have strong casing which cant break on placing it on concrete.

Hence When using wooden pallets to store batteries it can be placed anywhere.

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How are electromagnetic waves different from sound or water waves?

Annette [7]

Explanation:

Electromagnetic waves are different from sound or water waves in such a way that water and sound waves are called mechanical waves that requires a material medium for their propagation.

Electromagnetic waves do no require a material medium for propagation.

Electromagnetic waves are carried or transported by radiation and this can be passed through vacuums and different other materials.
But mechanical waves such as water and sound waves requires a material medium for their propagation.
They cannot pass through a vacuum.

8 0

3 years ago

if an object is thrown directly upwards remains in the air for 5.6s before it returns to its original position, how long did it

Mila [183]

Okay so an object gets thrown upwards so the half way point of the trip would be the maximum height (before it starts coming back down). if the object stays in the air for a total of 5.6s, then that is the time it takes to go up and come back down. to find the time to maximum height, half the time of the whole trip

5.6s/2 = 2.8s

6 0

4 years ago

Read 2 more answers

The _______ theory states that the Moon formed as the result of a collision between Earth and a Marssized object.

FromTheMoon [43]

D.) giant impact

hope this helps

4 0

3 years ago

You are given two infinite, parallel wires, each carrying current.The wires are separated by a distance, and the current in the

miv72 [106K]

Answer:

A. Attractive

B. ( μ₀I² ) / ( 2πd )

Explanation:

A. We know that currents in the same direction attract, and currents in the opposite direction repel, according to ampere's law. In this case the current in the two wires are flowing in the same direction, and hence the force between the two wires are attractive.

B. Suppose that two wires of length $l_1$ and $l_2$ both carry the current $I$ in the same direction ( given ). In the presence of a magnetic field produced by wire 1, a force of magnitude m say, is experienced by wire 2. The magnitude of the magnetic field produced by wire 1 at distance say d, from it's axis, should thus be the following -

$B_1$ = μ₀I / 2πd

The force experienced by wire 2 should thus be -

$F_2$ = I( $l_2$ $*$ $B_1$ )

= I $*$ $l_2 * B_1 *$ Sin( 90 )

= I $*$ $l_2$ ( μ₀I / 2πd )

Therefore the force per unit length experienced by wire 2 toward wire 1 should be ...

( $F_2$ / $l_2$ ) = ( μ₀I² ) / ( 2πd ) ... which is our solution

3 0

3 years ago

What is the external-internal pressure difference when the diver's lungs are at a depth of 6.1m (about 20ft)? assume that the di

Nesterboy [21]

Snorkel connects the diver's lungs with the air above the water. Because of this, the pressure inside the diver's lungs is the same as the atmospheric pressure.
The static pressure of a fluid is given with this equation:
$P=\rho gh$
The density of water is 1000kg/m^3.
$P=1000\cdot 9.81 \cdot 6.1=59841$Pa$
Standart atmospheric pressure is 101<span>325Pa.
</span>The difference is:
$\Delta P=101325-59841=41484 $Pa$

8 0

3 years ago