4 years ago

I s w a t e r w e t ?

1 answer:

6 0

What happens to us is when we come into contact with water<span> in such a way that it impinges on our state of being. We, or our possessions, 'get </span>wet<span>'.
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Kipish [7]

Answer:

is this for a project im a little confused

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3 years ago

The molecules of a substance in a particular state of matter move freely with random motion. The average speed of the molecules

Sonja [21]

Answer:

A gas

Explanation:

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3 years ago

A ball of mass m is thrown into the air in a 45° direction of the horizon, after 3 seconds the ball is seen in a direction 30° f

Rzqust [24]

Answer:

Velocity (magnitude) is 98.37 m/s

Explanation:

We use the vertical component of the initial velocity, which is:

$v_{0y}=v_0*sin(45)=\frac{\sqrt{2} }{2}v_0$

Using kinematics expression of vertical velocity (in y direction) for an accelerated motion (constant acceleration, which is gravity):

$v_{y}=v_{0y}+a*t=\frac{\sqrt{2} }{2}v_0-9.8t$

Now we need to find $v_y$ as a function of $v_0$ . We use the horizontal velocity, which is always the same as follow:

$v_x=v_0cos(45\º)=\frac{\sqrt{2} }{2}v_0=v_{t=3}*cos(30\º) \\$

We know the angle at 3 seconds:

$v_y(t=3)=v_{t=3}*sin(30\º)\\v_{t=3}=\frac{v_y}{sin(30\º)}$

Substitute $v_{t=3}$ in $v_x$ and then solve for $v_y$

$\frac{\sqrt{2} }{2}v_0=\frac{v_y*cos(30\º) }{sin(30\º)} \\v_y=\frac{\sqrt{6} }{6}v_0$

With this expression we go back to the kinematic equation and solve it for initial speed

$\frac{\sqrt{6} }{6} v_0 =\frac{\sqrt{2} }{2}v_0-29.4\\v_0(\frac{\sqrt{6}-3\sqrt{2}}{6} )=-29.4\\v_0=98.37 m/s$

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4 years ago

Look at your data. With three foods, Flock v

wolverine [178]

Answer:the first one was x

the second one is y

Explanation:

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3 years ago

Which of the following classifications of matter includes materials that can no longer be identified by their individual propert

lozanna [386]

The correct answer is B, I think

hope this helps

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3 years ago

Read 2 more answers