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ad-work [718]
3 years ago
12

Why doesn't a radio operating with two batteries function when one of the batteries is reversed? ​

Physics
1 answer:
bulgar [2K]3 years ago
8 0

Answer:

If you have two batteries and they have precisely the same voltage then placing one backwards will effectively cancel out the voltages and no current will flow. However, batteries aren't like that. The slightest difference in voltages mean that current will flow.

Explanation:

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Identify the 3 types of energy transfer shown in the diagram.
fgiga [73]

Answer:

1.Conduction.

2.Convection.

3.Radiation.

Explanation:

I'm sure it's correct

7 0
3 years ago
A large aquarium of height 5 m is filled with fresh water to a depth of D = 1.80 m. One wall of the aquarium consists of thick p
Damm [24]

To solve the problem we will first start considering the Pressure given the hydrostatic definition of the product between the density, the gravity and the depth. We will define the area where the liquid acts and later we will use the definition of the force as a product between the pressure and the area to calculate the force given in the two depths. The gauge pressure at the depth x will be

(P-P_a)= \rho g x

This pressure acts on the strip of area

dA = 7.6dx

The force acting on that strip is given by,

dF = (P-P_a)dA

dF = \rho g xdA

dF = 7.6 \rho g x dx

To evaluate the force, we will then consider the integral of the pressure as a function of the Area, or the integral of the previously found terms.

F = \int_0^x 7.6 \rho g x dx

F = 3.8 \rho g x^2

Evaluating at the initial depth of 1.8m and the final depth of 4.4 we have then that,

F_{1.8} = 3.8 (998)(9.8)(1.8)^2 = 120416.28N

F_{4.4} = 3.8(998)(9.8)(4.4)^2 = 719524.46N

Therefore the Net force will be

F = F_{4.4}-F_{1.8}

F = 719524.46-120416.28

F = 599108.18N

8 0
4 years ago
Solar panels allow us to harness ___________ energy and convert it to __________ energy to heat water.
vichka [17]
Solar energy
thernal energy
3 0
4 years ago
Consider a short time span just before and after the spark plug in a gasoline engine ignites the fuel-air mixture and releases 1
Tju [1.3M]

Answer:

Temperature after ignition=7883.205 K

Explanation:

The number of moles is,

n=PV/RT

=(1.18x10^6)(47.9x10^-6)/8.314(325)

= 0.0209 moles

a) In this process volume is constant

Q=U

=nCv.dT

dT= Q/nCv

=1970/(1.5x8.314)(0.0209)

= 7558.205 K

The final temperature is,

= 7558.205+325

= 7883.205 K

5 0
3 years ago
Read 2 more answers
Give reason 1)voltmeter is always connected in parallel 2)ammeter is always connected in series
77julia77 [94]

Answer:

1)objects in parallel experience the same potential difference.Therefore the voltmeter is connected in parallel to the object for which we want to calculate the P.d

2}objects in series in a circuit experiance

the same current thus they have to be in series to have the same exact current

Explanation:

n\

8 0
3 years ago
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