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2 years ago

When I bump the table, the coffee in my cup spilled out. Newton's _____ law explains this reaction.

2 answers:

Ivan2 years ago

7 0

When I bump the table, the coffee in my cup spilled out. Newton's 1st law explains this reaction.

Answer: A) or the first option.

Tems11 [23]2 years ago

3 0

Answer:

Newton's 1st law explains this reaction

Explanation:

Newton's first law of motion, states that " a body at rest or uniform motion in a straight line, will continue in that state, unless acted upon by an external force.

The coffee in the cup, initially rest on the table, but the moment you bump the table, you act as an external force which distort the initial state of the coffee, making it to spill out.

Therefore, Newton's 1st law explains this reaction.

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A record player turntable initially rotating at 3313 rev/min is braked to a stop at a constant rotational acceleration. The turn

Rus_ich [418]

Answer:

(A) It will take 22 sec to come in rest

(b) Work done for coming in rest will be 0.2131 J

Explanation:

We have given the player turntable initially rotating at speed of $33\frac{1}{3}rpm=33.333rpm=\frac{2\times 3.14\times 33.333}{60}=3.49rad/sec$

Now speed is reduced by 75 %

So final speed $\frac{3.49\times 75}{100}=2.6175rad/sec$

Time t = 5.5 sec

From first equation of motion we know that '

$\alpha =\frac{\omega -\omega _0}{t}=\frac{2.6175-3.49}{4}=-0.158rad/sec^2$

(a) Now final velocity $\omega =0rad/sec$

So time t to come in rest $t=\frac{0-3.49}{-0.158}=22sec$

(b) The work done in coming rest is given by

$\frac{1}{2}I\left ( \omega ^2-\omega _0^2 \right )=\frac{1}{2}\times 0.035\times (0^2-3.49^2)=0.2131J$

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2 years ago

How would you find the average speed of a cyclist throughout an entire race

Fudgin [204]

Speed = distance / time
If you input your numbers into this equation you will be able to find the cyclists average speed

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3 years ago

What happens when multiple forces act upon an object?

Bogdan [553]

The object will move if the forces are unbalanced.

Newtons second tells you that when a net force (the unbalanced force) is applied to and object it will produce an acceleration (movement) in direct proportion to the force and in inverse proportion to the mass of the object.

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2 years ago

Read 2 more answers

A graph can be described as:

pantera1 [17]

D all of the above

....

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2 years ago

What is the weight of a truck that has a mass of 3500kg?

aleksley [76]

Answer:

7716.179 pounds? Are you asking for a conversion or something different?

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3 years ago