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lord [1]
3 years ago
12

What is the lupacnameH3C – CHTthe H₂ - CH - CH2CH₂CH₂CH3​

Physics
1 answer:
dimulka [17.4K]3 years ago
5 0

Answer:??

Explanation:

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A depiction of a famous scientific experiment is given. Consider how the beam changes when the magnet is off compared to when th
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After reading this long statement we can extract the data to work on the problem.

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The beam used is a negatively charged electron beam with a velocity of v = E / B

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Brainliest answer?

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A stone is thrown upward from the top of a building at an angle of 30° to the horizontal and with an initial speed of 20 m/s. Th
Hitman42 [59]

Answer:

Explanation:

Given

inclination \theta =30^{\circ}

initial speed u=20\ m/s

Point of release is 45 m above the ground

Considering stone to be a projectile, so time taken by projectile for its zero vertical displacement is

t_1=\frac{2u\sin \theta }{g}

t_1=\frac{2\times 20\times \sin 30}{10}

t_1=2\ s

Now after completing zero vertical displacement , stone needs to travel another 45 m in downward direction with initial speed u=20\sin 30

h=u_yt+\frac{1}{2}a_yt^2

where, h=height

u_y=vertical velocity

a_y=vertical acceleration

t_0=time

45=20\sin 30+\frac{1}{2}(9.8)(t_0)^2

t_0^2=\frac{70}{9.8}

t_0=2.64\ s

thus total time time required is t=t_0+t_1=2.64+2=4.64\ s

vertical velocity just before hitting

v_y=\sqrt{u_y^2+2\times a_y\times s}

v_y=\sqrt{10^2+2\times 10\times 45}

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