3 years ago

A pulley consists of a wrapped around a

Physics

2 answers:

Eddi Din [679]3 years ago

8 0

Of a rope wrapped around a pulley chain

mamaluj [8]3 years ago

6 0

Of a rope wrapped around a pulley chain

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A 105 kg astronaut carrying a 16 kg tool bag finds himself separated from his spaceship by 18 m and moving away from the spacesh

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Answer:

$T=22.5sec$

Explanation:

From the question we are told that:

Mass of astronaut $m_a=105kg$

Mass of tool $m_t=16kg$

Distance $d=18m$

Velocity of separation $v_s= 0.1m/s$

Velocity of tool bag $v_t=4.5m/s$

Generally the equation for momentum is mathematically given by

$P=mv$

Therefore

Initial Momentum before drop

$P_1=0.1(105+16)$

$P_1=12.1$

Initial Momentum after drop

$P_2=-16(4.5)+105V$

Therefore

Since $P_1=P_2$

$-72+105V=12.1$

$V=0.8m/s$

Generally the equation for Time T is mathematically given by

$T=\frac{d}{V}$

$T=\frac{18}{0.8}$

$T=22.5sec$

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3 years ago

What is the difference between a psychologist and a psychiatrist?

vfiekz [6]

Answer:

Psychiatrists are medical doctors, psychologists are not. Psychiatrists prescribe medication, psychologists can't. Psychiatrists diagnose illness, manage treatment and provide a range of therapies for complex and serious mental illness. Psychologists focus on providing psychotherapy (talk therapy) to help patients.

Explanation:

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What compound is formed when two hydrogen atoms and one oxygen atom joined together?

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C. water

answer a has one sodium atom and one chlorine atom

answer b is a chemical reaction

answer d has only one hydrogen atom and one oxygen atom

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A Ferris wheel has a radius of 25 feet. The wheel is rotating at two revolutions per minute. Find the linear speed, in feet per

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Linear velocity and angular velocity are related by the formula:
v = ωr

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v = 100π x 25
= 2500π feet per minute

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