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3 years ago

What does it mean when the mark on the ramrod disappears into the barrel of the muzzleloader?

Physics

1 answer:

bagirrra123 [75]3 years ago

8 0

The firearm is unloaded.

The ramrod establishes whether the firearm is loaded or unloaded. It thrusts the bullet down the barrel. It is marked by wrapping some tape around it ( at the muzzle end ). This is to effectively signal if the muzzleloader is empty or loaded.

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What does a force moving an object through a distance transfer? A. sound B. energy C. weight D. mass

Ulleksa [173]

Answer:

it transfers energy as it moves

4 0

3 years ago

If a dolphin swims at 15 m/s for 30 seconds, how far would the dolphin swim?

Olegator [25]

It would swim 30*15 metres, which is 450 metres.

7 0

3 years ago

If a sinusoidal electromagnetic wave with intensity 18 W/m2 has an electric field of amplitude E, then a 36 W/m2 wave of the sam

Neporo4naja [7]

Answer:

The correct option is D

Explanation:

From the question we are told that

The intensity of the first electromagnetic wave is $I = 18 \ W/m^2$

The amplitude of the electric field is $E_{max}_1 =A$

The intensity of the second electromagnetic wave is $I = 36 \ W/m^2$

Generally the an electromagnetic wave intensity is mathematically represented as

$I = \frac{1}{2} * \epsilon_o * c * E_{max}^2$

Looking at this equation we see that

$I \ \ \alpha \ \ E^2_{max}$

=> $\frac{I_1}{I_2} = [ \frac{ E_{max}_1}{ E_{max}_2} ] ^2$

=> $E_{max}_2 = \sqrt{\frac{x}{y} } * E_{max}_1$

=> $E_{max}_2 = \sqrt{\frac{36}{18} } * E$

=> $E_{max}_2 = \sqrt{2 } E$

5 0

3 years ago

The oven draws 1100 W of power, and you have determined that it heats with an efficiency of 51%. Using this information, determi

LiRa [457]

Answer:

134.75935 seconds

Explanation:

m = Amount of water = 240 mL

c = Specific heat of water = 4.2 J/mL °C

$\Delta T$ = Change in temperature = $100-25=75$

t = Time taken

P = Power = 1100 W

E = Pt

Efficiency = 51 %

So, Energy = 0.51Pt

As energy is conserved

Q = 0

$\\\Rightarrow -mc\Delta T+E=0\\\Rightarrow -mc\Delta T+Pt=0\\\Rightarrow -240\times 4.2(100-25)+0.51\times 1100t=0\\\Rightarrow t=\frac{240\times 4.2(100-25)}{0.51\times 1100}\\\Rightarrow t=134.75935\ s$

The it takes to raise the temperature is 134.75935 seconds

6 0

3 years ago

If you walk along a log floating on a lake why does the log move in the opposite direction?

aivan3 [116]

HERE'S YOUR ANSWER: 

•Since the log is stationary and you are moving beside the log, it seems to move in the opposite direction from your point of view, because from your perspective u are stationary and the log is moving. If you were to stop moving the log would also stop moving.

HOPE IT HELPS...

5 0

3 years ago