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3 years ago

PLEASE HELP !! AND NO LINKS BCS THEY ARE ALL BLOCKED ! THIS IS SCIENCE NOT PHYSICS

Physics

2 answers:

Vladimir [108]3 years ago

7 0

Answer:

Explanation:

Scientists don’t watch TV, so scratch that. There is no opinions, do you think people with cancer are looking for someone with an opinion? He.ck no, dude who even uses flashlights we got light switches. Anytime you see scale, you know that’s scientific. So, D is your answer.

igor_vitrenko [27]3 years ago

3 0

D is the only answer that is an example of gathering scientific evidence, which must be specific and measurable.

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Which formation is one feature of karst topography?

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3 years ago

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A woman in a sprint race accelerates from rest to 8.7 m/s in 2.7 s. What is her displacement?

Trava [24]

Answer:

23.49m

Explanation:

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3 years ago

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3 years ago

A flea jumps straight up to a maximum height of 0.540 m . what is its initial velocity v0 as it leaves the ground?

jok3333 [9.3K]

For an uniformly accelerated motion, we can write
$2ah=v_f^2-v_0^2$
where $a=g=-9.81 m/s^2$ is the acceleration of this motion, which in this problem is the gravitational acceleration, with a negative sign because it points downward, against the direction of the motion; h=0.540 m is the distance covered by the flea, and $v_0$ is the initial velocity.

At the maximum height, the velocity is zero, so $v_f =0$ . Therefore we can solve to find $v_0$ :
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3 years ago

Stairway must have uniform riser height and tread depth; variations in riser height or tread depth shall not be over _______ inc

alexandr1967 [171]

Answer:

$\frac{3}{8} inches$

Explanation:

the variations in riser height or tread depth should not be grater than $\frac{3}{8} inches$ that is equal to 9.5 mm but the maximum riser height should be the $\frac{81}{4} inch$ but variation in riser height should not exceed to $\frac{3}{8} inches$ . The minimum riser height should be 7 inches which is equal to the 178 mm

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4 years ago