4 years ago

An element in a similar period to bromine would be

Physics

1 answer:

In-s [12.5K]4 years ago

5 0

Answer: fluorine

Explanation:

They are both halogens (group XVIII).

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Answer:

the same type because they both formed from rock material.

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3 years ago

Find the kinetic energy of a tennis ball travelling at a speed of 46 m/s with a mass of 58 g.

tekilochka [14]

It’s half the mass of the object by its velocity ^2

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3 years ago

An Olympic runner complete the 200 m sprint and 23 seconds. What is the runners average speed (round your answer to the nearest

kipiarov [429]

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3 years ago

A student standing on a stationary skateboard tosses a textbook with a mass of mb = 1.25 kg to a friend standing in front of him

juin [17]

Answer:

The velocity of the student has after throwing the book is 0.0345 m/s.

Explanation:

Given that,

Mass of book =1.25 kg

Combined mass = 112 kg

Velocity of book = 3.61 m/s

Angle = 31°

We need to calculate the magnitude of the velocity of the student has after throwing the book

Using conservation of momentum along horizontal direction

$m_{b}v_{b}\cos\theta= m_{c}v_{c}$

$v_{s}=\dfrac{m_{b}v_{b}\cos\theta}{m_{c}}$

Put the value into the formula

$v_{c}=\dfrac{1.25\times3.61\times\cos31}{112}$

$v_{c}=0.0345\ m/s$

Hence, The velocity of the student has after throwing the book is 0.0345 m/s.

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3 years ago

Professor blossom expects her students to be on time for class holds, them for the entire class period and has firm deadlines se

defon

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A dictatorship or tyranny.

Explanation:

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