lpharepresents the probability of a type I error.B.A kind I error is making the mistake of rejecting the null hypothesis as soon as it is actually true.C.A type II error is making the mistake of failing to disapprove the null hypothesis as soon as it is actually false.D.A type I error is making the mistake of rejecting the null hypothesis as soon as it is actually false.

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urbanbreathnyc.com:

Option D

A kind I error is making the mistake of rejecting the null hypothesis once it is actually false.

Explanation:

Error type I is normally stood for by alpha symbol and also type I error entail making a mistake of rejecting the null hypothesis once it"s actually true. Type II error on the other side requires making a mistake of failing to refuse null hypothesis as soon as it is actually false. The statement in choice D is false because it contradicts the meaning of kind I error over therefore the just false statement in relation to hypothesis trial and error is option D, A type I error is making the mistake of rejecting the null hypothesis once it is actually false.

Sfinish
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A smooth wood block is inserted on a smooth wood tablepeak. You discover that you need to exert a pressure of 22.0 N to store this 7.00 kg
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urbanbreathnyc.com:

B . 68.7 N

Explanation:

Given in the question that;

Force = 22 N

Mass = 7.0 kg

Velocity = 4.0 m/s

Gravitational force is the weight of wood block , calculated as mass times acceleration due to gravity.

F= m* a

F= 7 * 9.81

F= 68.67 N

F= 68.7 N

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A clay ball through a mass of 0.50 kg is traveling at 5.7 m/s to the appropriate and also hits an additional clay round that has actually a mass of 0.50 kg wh
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urbanbreathnyc.com:

2.9 m/s to the right

Explanation:

Momentum before = momentum after

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(0.50 kg) (5.7 m/s) + (0.50 kg) (0 m/s) = (0.50 kg + 0.50 kg) v

v = 2.85 m/s

Rounded to 2 significant numbers, the velocity is 2.9 m/s to the ideal.

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C the metal take care of bereason it is a great conductor

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The force F⃗ pulling the string is constant; therefore the magnitude of the angular acceleration α of the wheel is constant for
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urbanbreathnyc.com:

The urbanbreathnyc.com is " "

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I"m not quite certain just how the formula functions. I thought it was
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urbanbreathnyc.com:

See the explacountry listed below.

Explanation:

Of course yes, after my explanation you will certainly understand also incredibly well exactly how to analyze this type of problems.

First, we have to distinguish the weight of the mass, the mass has units of kilograms or pounds, while the weight is the product of the mass by gravitational acceleration. In this means, we have actually the complying with formula for the weight of anybody.

w = m*g

where:

w = weight (units of Newtons>

m = mass

g = gravity acceleration = 9.81

When we have actually the product of these systems *, We are constantly going to gain as a result the units of Newlots , The Newton is a unit of pressure.

Now, to settle this problem we should use Newton"s second regulation, which tells us that the sum of pressures on a body must be equal to the product of mass by acceleration.

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ΣF = m*a

where:

ΣF = forces acting over the gymnast

m = mass = 55

a = desacceleration = 6*9.81 = 58.86

Now we have actually two pressures acting over the gymnast the first one is his or her weight (the mass by the gravity acceleration) and the second pressure is the one made it by his or her legs upwards in order to be standing. Let"s take as positive indications the activities and also pressures upwards and negative downwards

- (m*g) + Fl = m*a

where:

Fl = pressure made it by the legs

As the deceleration is upward because it prevents the perchild from continuing to go down, it is taken as a positive authorize.