Can you answer this question please.

Physics

1 answer:

scZoUnD [109]4 years ago

6 0

Well, the lungs is one help to your body it pumps oxygen into your blood and brain the heart is a main source of your body which pump the blood in and out to the body which is the organism and the brain which is ur main control.

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A jumbo jet must reach a speed of 360 km/h (= 225 mi/h) on the runway for takeoff. assuming a constant acceleration and a runway

Alinara [238K]

We just consider the moves of the jumbo jet, not it's causes (we solve it kinematically)

It has a constant acceleration, so then we may use this equation to solve our problem: a = Vf^2 - Vo^2 / 2∆x

Vf (The max velocity that allowed) = 360 Km/h
Vo = 0 (At rest)
∆x = 1.5 Km

then..

a = (360)^2 / (2)(1.5) = 43200 Km/h^2

Convert those numbers to m/sec^2 you will surprised by the results=))

3 0

3 years ago

A 6.25-kg bowling ball moving at 8.95 m/s collides with a 0.95-kg bowling pin, which is scattered at an angle of θ = 27.5° from

Archy [21]

Answer:

-6.34 degrees.

Explanation:

Because this is a collision we can use the formula of linear momentum conservation.

$m_1*v_{o1}+m_2*v_{o2}=m_1*v_{f1}+m_2*v_{f2}$

The pin has an angle so it has two components of velocity, so:

$v_x=V*cos(\theta)\hat{i}\\v_y=V*sin(\theta)\hat{j}\\\\v_x=11.6*cos(27.5^o)=(10.3m/s)\hat{i}\\v_y=11.6*sin(27.5^o)=(5.4m/s)\hat{j}$

applying the first formula:

$6.25kg*(8.95m/s)\hat{i}+0=6.25kg*v_{f}+0.95kg*(10.3m/s(\hat i)+5.4m/s(\hat j))\\\\v_f=\dfrac{6.25kg*(8.95m/s)\hat{i}-0.95kg*(10.3m/s(\hat i)+5.4m/s(\hat j))}{6.25kg}\\v_f=7.38m/s(\hat i)-0.82m/s(\hat j)$