How many series connected 2v cells does a typical 24 storage battery contain

In the early universe and in stars, deuterium nuclei are produced from the combination of one proton and one neutron, with the r

poizon [28]

Answer:

$Q = q_e = 1.6 \times 10^{-19} C$

Explanation:

As we know that charge is always conserved

so here we have

initial total charge = final total charge

also we know that gamma rays are chargeless and massless particles

so we have

charge on deuterium is given as

Q = charge on proton + charge on neutron - charge on gamma

so we have

$Q = 1.6 \times 10^{-19}$

$Q = q_e = 1.6 \times 10^{-19} C$

6 0

3 years ago

9. What is the total kinetic energy (KEtran + KErot) of a solid cylinder with mass M = 2.50 kg and radius R = 0.5 m that rolls w

GarryVolchara [31]

Answer:

110.25 J

Explanation:

We are given that

Mass,M=2.5 kg

Radius,R=0.5 m

Distance,d=4.5 m

Initial speed,u=0

We have to find the total kinetic energy

According to law of conservation of energy

Total kinetic energy=Potential energy=mgh

Where g= $9.8m/s^2$

Using the formula

Total kinetic energy= $2.5\times 9.8\times 4.5$

Total kinetic energy $=110.25 J$

4 0

3 years ago

Two workers in a holiday boutique are filling stockings with small gifts and candy. Kate has already filled 5 stockings and will

Vlad [161]

This question is stated in a complicated way, but all the information we need is right there waiting to be untangled.

We'll start the clock when Todd arrives. At that time:

-- Kate has 5 done. Todd has none yet. Todd is 5 units behind.

From then on:

-- The clock is running. Kate adds 4 an hour to her total. Todd adds 5 an hour.

-- She started out 5 ahead of Todd when he arrived, but Todd does 1 more than Kate every hour.

-- So Kate's 'lead' shrinks by 1 every hour.

-- So <em>Todd will catch up with Kate</em> <em>in 5 hours</em>.

That's the answer to the question ... How long ? It doesn't ask us how many stockings have been filled, but that's easy for us to figure out:

-- Kate had 5 done when the clock started. She fills 4 every hour. After 5 hours, she has (5 x 4) = 20 more filled, and a total of 25 ready to sell.

-- Todd started out with none done. He fills 5 every hour. After 5 hours, he has (5 x 5) = 25 filled and ready to sell. He has caught up with Kate in 5 hours.

5 0

3 years ago

A current of 16.0 mA is maintained in a single circular loop of 1.90 m circumference. A magnetic field of 0.790 T is directed pa

AVprozaik [17]

To solve this problem it is necessary to take into account the concepts related to the magnetic moment and the torque applied over magnetic moments.

For the case of the magnetic moment of a loop we have to,

$\mu = IA$

Where

I = Current

A = Area of the loop

Moreover the torque exerted by the magnetic field is defined as,

$\tau = IAB$

Where,

I = Current

A = Area of the loop

B = Magnetic Field

PART A) First we need to find the perimeter, then

$P = 2\pi r$

$r = \frac{P}{2\pi}$

$r = \frac{1.9}{2\pi}$

$r = 0.3025m,$

The total Area of the loop would be given as,

$A = \pi r^2$

$A = \pi 0.3025^2$

$A = 0.287m^2$

Substituting at the equation of magnetic moment we have

$\mu = (16*10^{-3})(0.287)$

$\mu = 4.58*10^{-3} A.m^2$

Therefore the magnetic moment of the loop is $4.58*10^{-3}Am^2$

PART B) Replacing our values at the equation of torque we have that

$\tau = IAB$

$\tau = (16*10^{-3})(0.287)(0.790)$

$\tau = 3.62*10^{-3}Nm$

Therefore the torque exerted by the magnetic field is $3.62*10^{-3}Nm$

6 0

3 years ago

What does the graph to the right represent?

Nastasia [14]

C the thermal equilibrium

4 0

4 years ago

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