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Levart [38]
3 years ago
13

A diver is on a board 1.80 m above

Physics
2 answers:
Virty [35]3 years ago
8 0

Answer:

v = 6.95 m/s

Explanation:

Given that,

A diver is on a board 1.80 m above  the water, s = 1.8 m

The initial speed of the diver, u = 3.62 m/s

Let v is the speed with which she hit the water. It will move under the action of gravity. Using the equation of motion as follows :

v^2-u^2=2gs\\\\v=\sqrt{u^2+2gs} \\\\v=\sqrt{(3.62)^2+2(9.8)(1.8)} \\\\v=6.95\ m/s

So, she will hit the water with a speed of 6.95 m/s.

love history [14]3 years ago
4 0

Answer:

6.95

Explanation:

Acellus

Correct

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A mass spectrometer is being used to separate common oxygen-16 from the much rarer oxygen-18, taken from a sample of old glacial
Nataly_w [17]

Answer:

0.092 m

Explanation:

A charged moving particle immersed in a region with magnetic field follows a circular trajectory at constant speed (uniform circular motion), since the magnetic forces acts perpendicular to the direction of motion of the particle.

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r=\frac{mv}{qB}

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B_A=1.30 T

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r_A=\frac{m_A v_A}{q_A B_A}=\frac{(2.66\cdot 10^{-26})(2.90\cdot 10^6)}{(1.6\cdot 10^{-19})(1.30)}=0.371 m

For the ion of oxygen-18, we have:

m_B = \frac{18}{16}m_A = 2.99\cdot 10^{-26}kg

q_B = 1.6\cdot 10^{-19}C (it is singly charged)

v_B=2.90\cdot 10^6 m/s

B_B=1.30 T

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r_B=\frac{m_B v_B}{q_B B_B}=\frac{(2.99\cdot 10^{-26})(2.90\cdot 10^6)}{(1.6\cdot 10^{-19})(1.30)}=0.417 m

After each ion has travelled a semicircle, the separation between the two ions will be twice the difference in their radius, so:

d=2(r_B-r_A)=2(0.417-0.371)=0.092 m

3 0
3 years ago
To model time-variant data, one must create a new entity in an m:n relationship with the original entity.
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To model time-variant data, one must create a new entity in an m:n relationship with the original entity, is a False statement.

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At which moon position would a person on Earth see the entire half of the moon(full-moon)?
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Yakvenalex [24]

Answer:

43.41 mm

Explanation:

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thickness of sheet, t = 6 mm

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From average shearing stress T = Force F / Area A

Hence area = force/stress =45000/ 55 =818.18 mm^2

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diameter = area/(pi* thickness)

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3 years ago
Heyyy! Okay riddle of the day
vekshin1

Answer:

Time to get a new fence...?

C'mon that's pretty cringe lol

Please give brainliest

have a nice day :D

3 0
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