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chubhunter [2.5K]
3 years ago
14

2. A block of mass 1.2 kg lies on a frictionless surface. A man slides the block

Physics
1 answer:
Alex17521 [72]3 years ago
3 0

Answer:

The spring constant will be "1333.33 N/m".

Explanation:

The given values are:

Mass,

m = 1.2 kg

Displacement compression,

x = 0.15 m

Block's velocity,

v_i=5 \ m/s

As we know,

⇒  E_i=E_f

or,

⇒  K_i+v_i=K_f+v_f

⇒  \frac{1}{2}mv_i^2+0=0+ \frac{1}{2}Kx^2

So,

⇒  K=\frac{mv_i^2}{x_2}

On substituting the values, we get

⇒       =\frac{1.2\times 5\times 5}{0.15\times 0.15}

⇒       =\frac{30}{0.0225}

⇒       =1333.33 \ N/m

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Answer:

The answer is "False"

Explanation:

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2 years ago
If you touch the two terminals of a power supply with your two fingertips on opposite hands, the potential difference will produ
LiRa [457]

Answer:

Yes the body will receive a dangerous shock in both cases.

Explanation:

Different parts of the body has different resistance. skin has the high resistance as compared to other organs of the body.

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Dry hands body has approximately 500 kΩ resistance and if 120 V electricity supply current received will be:

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I= 0.24 mA

Even the current seems is much lower than the safe zone but this is the case in case of DC voltage in case of AC voltage the body will receive a shock this is because the skin pass more current when the voltage is changing i.e. AC.

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If the ball hits olaf and bounces off his chest horizontally at 8.50 m/s in the opposite direction, what is his speed vf after t
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Answer:

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Answer:

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Explanation:

The force of gravity on a 700 kg satellite if its 10 km above Earth's surface is given by

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