What type of energy does an object gain as it is lifted at a constant speed?

Physics

1 answer:

marshall27 [118]3 years ago

7 0

D. Gravitational potential

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What happen to the frequency of a sound wave as you change the pitch?

steposvetlana [31]

The "pitch" of a sound is the impression your brain forms
that corresponds to the frequency of the sound wave.

When the frequency is high, your brain says "high pitch".

When the frequency is low, your brain says "low pitch".

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During an ultrasound, sound waves are sent by a transducer through muscle tissue at a speed of 1300 m/s. Some of the sound waves

Simora [160]

Answer:

0.195 m

Explanation:

Speed is distance moved per unit time, expressed as s=d/t and making d the subject of the formula then d=st

Where d is distance/depth moved, s is rhe speed of waves and t is time in seconds.

Substituting s with 1300 m/s and t with 0.00015 s then the depth of metal segment will be

D=1300*0.00015=0.195 m

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3 years ago

A block of mass m = 0.23 kg is set against a spring with a spring constant of k1 = 553 N/m which has been compressed by a distan

madreJ [45]

Answer:

$X_2 = 0.122m$

Explanation:

Using the law of the convervation of energy E:

$E_i = E_f$

so:

$\frac{1}{2}K_1X_1^2 = \frac{1}{2}K_2X_2^2$

where $K_1$ is the constant of the spring 1, $X_1$ the compressed of the first spring, $K_2$ is the constant of the second spring and $X_2$ is the compressed of the second spring.