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3 years ago

Which metal and nonmetal families are the most different and why

Physics

1 answer:

nevsk [136]3 years ago

3 0

Answer:

since they have got specific and special metallic and non metallic characteristics I guess

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A 0.157-kg baseball moving at 21.2 m/s strikes the glove of a catcher. The glove recoils a distance of 10.7 cm.The magnitude of

san4es73 [151]

Answer:329.72 N

Explanation:

Given

mass of ball $m=0.157\ kg$

velocity of ball $v=21.2\ m/s$

glove recoil distance $d=10.7\ cm$

Energy associated with ball E=kinetic energy of ball

$E=\frac{1}{2}mv^2$

$E=\frac{1}{2}\times 0.157\times 21.2^2$

$E=35.28\ J$

Now if an average for is applied to stop the ball then work done by this force is equal to kinetic energy of the ball

$W=F_{avg}\cdot d=E$

$F_{avg}=\frac{E}{d}=\frac{35.28}{0.107}=329.72\ N$

6 0

3 years ago

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Impedance plethysmography is a technique that can be used to detect thrombosis--the presence of clots in a blood vessel--by meas

likoan [24]

Answer:

a) The resistance of the calf between the electrodes is $85\Omega$

b) The average resistivity of this part of the leg is $57.81m\Omega/cm^{3}$

Explanation:

a) Using Ohm's law $V=IR$ , solving for $R$ , we obtain $R=\frac{V}{I}=\frac{17mV}{200uA}=85\Omega$

b) The volume of the calf is like a cylinder, so $Vol=\pi r^{2}h$ , with $h=13cm$ and $r=d/2=6cm$ , therefore $Vol=\pi (6cm)^{2}(13cm)=468\pi cm^{3}$ . Then we can use $R_{av}=\frac{R}{Vol} =\frac{85\Omega}{468\pi cm^{3}} =0.05781\Omega /cm^{3}=57.81m\Omega/cm^{3}$ , this is the average resistivity of this part of the leg.

4 0

3 years ago

Which statement describes the motion of the sun? (2 points)

Murrr4er [49]

Answer:

D:the.sun.rotated.on.an.axis

Explanation:

8 0

3 years ago

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Scienctists agree that the world's climate is getting hotter. What do you think might happen as a result of this climate change?

Mama L [17]

Answer:

Bad things

Explanation:

Global warming has many terrible effects on people and the earth itself

such as, death, birth defects, asthmea, breathing conditions, increased diseases.

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3 years ago

Ross training for a half marathon which is 13.1 miles long. Within four months he has progressed to an 11 mile practice run if R

damaskus [11]

If Ross takes two months off from training, his fitness level will reduce in comparison to what it was two months ago.

In as little as 3–4 weeks after beginning strength training, Ross will probably experience weight increase, energy loss, diminished balance, diminished strength (making it tougher to carry out daily tasks), and overall fewer fitness levels.

Many people mistakenly believe they lose muscle mass far more quickly than they actually do because their muscles' ability to store water and glycogen is declining.

A decrease in strength and muscle mass, with beginners experiencing a smaller decline in strength than experienced lifters.

Ross will experience Increased VO2 Max from exercise. VO2 Max is almost completely lost in people who train at lower intensities.

learn more about fitness here: brainly.com/question/13490156

#SPJ10

4 0

2 years ago