Which of the following is not a characteristic of electromagnetic light waves?

Badminton is a sport similar to.<br><br>Basketball<br>Futbol<br>Tennis

slavikrds [6]

Answer:

tennis

Explanation:

6 0

2 years ago

The circuit shown in the figure (Figure 1) uses a neon-filled tube. This neon lamp has a threshold voltage V0 for conduction, be

Svetllana [295]

Part 1)

Answer:

Explanation:

As we know by equation of charging of the capacitor we will have

$V = E(1 - e^{-t/RC})$

so we will have

$87 = 105(1 - e^{-t/RC})$

here we know that

$R = 3.00 \times 10^6 ohm$

$C = 0.250 \mu F$

so we have

$t = 1.32 s$

Part b)

Answer:

The time will increase.

Explanation:

As we know that on increasing the value of the resistance the the product of the resistance and capacitance will increase so the time will increase to get the above voltage.

Part c)

Answer:

The capacitor discharges through a very low resistance (the lamp filled with ionized gas), and so the discharge time constant is very short. Thus the flash is very brief.

Explanation:

Since the lamp resistance is very small so the energy across the lamp will totally lost in very short interval of time

Part d)

Answer:

Once the lamp has flashed, the stored energy in the capacitor is gone, and there is no source of charge to maintain the lamp current. The lamp "goes out", the lamp resistance increases, and the capacitor starts to recharge. It charges again and the process will repeat.

Explanation:

Since we know that the battery is connected to the given system so after whole energy of capacitor is flashed out it is again charged by the battery and the process will continue

3 0

3 years ago

When thorium (90 protons) ejects a beta particle, the resulting nucleus has

Sav [38]

Answer:

none of the above

Explanation:

The actual answer is '91 protons'. In fact, the beta decay of the thorium-234 is the following:

${}_{90}Th \rightarrow {}_{-1}e+{}_{91}Pa$

where inside the nucleus of Thorium (90 protons), a neutron turns into an electron (the beta particle) + a proton. Therefore, the resulting nucleus (which is Protoactinium) has a total of 90+1 = 91 protons.

So, the correct answer would be '91 protons'.

7 0

2 years ago

If you wanted to get yellow light , what part of the of the spectrum would the color filter have to absorb ?

densk [106]

The filter would need to absorb every color EXCEPT yellow. It would have to absorb red orange green blue and violet.

4 0

2 years ago

if a ball is accelerated downward at 9.8m/s, by how many meters per second does the object's velocity change every second?

Stella [2.4K]

The velocity will change (increase) by 9.8 m/s every second.

Why?

Since the ball is accelerated downward at $9.8\frac{m}{s^{2} }$ we can see that the ball is on "free fall". It means that the wall was dropped with no initial speed.

Now, if we want to know by how many meters per second does the object's velocity change every second, we need to understand the units of the acceleration. Let's write the equation of acceleration for better understanding.

$Acceleration=\frac{ChangeInVelocity(\frac{m}{s})}{time(s)}\\\\Acceleration=\frac{\frac{m}{s} }{s}=\frac{m}{s^{2} }$

So, from the equation we can see that the acceleration is changing the velocity every second.

Hence, if an object has the given acceleration (acceleration due to gravity, 9.8m/s2), it means that its speed will change (increase) by 9.8m/s every second.

Have a nice day!

8 0

2 years ago