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3 years ago

A person walks 25 m east 35 m north 25 me west and 5 m south. What's the distance traveled?

Physics

1 answer:

Zolol [24]3 years ago

8 0

With these questions, drawing it out would always help, the answer for this would be 90m if you add them all up. If it’s displacement, it would be 30m. But since it’s asking for the distance TRAVELED then it’s 90m

ANSWER: 90m

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Suppose a metal sphere is launched up a ramp with Vi=1.5 m/s. The end of the ramp is 1.20 m above the floor. The ramp is at an a

Mekhanik [1.2K]

The sphere will go up until all the initial kinetic energy be transformed into potential energy.

Intital kinetic energy = m*(vi)^2 / 2

Final potential energy = mgh

mgh = m(vi)^2 / 2 => h = (vi)^2 / (2g)

g = 9.81 m/s^2
vi = (1.5m/s)^2

h = (1.5m/s)^2 / (2*9.81m/s)^2 = 0.115 m

The range is the distance run over the ramp

Using trigonometry, sin(20°) = h /run => run = h / sin(20) = 0.115m / sin(20) = 0.336 m

Answer: 0.336 m

3 0

4 years ago

Why doesn't the moon turn black during a total lunar eclipse? Explain your answer

Alisiya [41]

Answer:

Thank me mark me brainliest

Explanation:

I did not explain because i got a photo

4 0

3 years ago

A volleyball player bumps a ball across a net with the velocity and angle shown below. What is the maximum height of the ball?

Marrrta [24]

Answer:

D. 12.4 m

Explanation:

Given that,

The initial velocity of the ball, u = 18 m/s

The angle at which the ball is projected, θ = 60°

The maximum height of the ball is given by the formula

h = u² sin²θ/2g m

Where,

g - acceleration due to gravity. (9.8 m/s)

Substituting the values in the above equation

h = 18² · sin²60 / 2 x 9.8

= 18² x 0.75 / 2 x 9.8

= 12.4 m

Hence, the maximum height of the ball attained, h = 12.4 m

6 0

3 years ago

If the mass of the body is tripled and its velocity becomes doubled, then the linear momentum of the body will

Klio2033 [76]

Answer:

don't know I is not am studnt

5 0

3 years ago

3. The following sound waves have what velocity? (convert cm into m in your calculations.)

mestny [16]

The sound waves with the frequency 20 Hz, 200 Hz, 2,000 Hz, and 20,000 Hz have a velocity of 344 m/s.

<h3>What are sound waves?</h3>

A sound wave is a sample resulting from the motion of strength traveling thru a medium (inclusive of air, water, or every other liquid or stable matter) because it propagates from the supply of the sound. Sound waves are created and convey strain waves, for example, a cellphone.

The frequency can be given as:

Frequency = Velocity/ Wavelength

Velocity = Frequency * Wavelength

The velocity of the following sound waves is given as:

Frequency = 20 Hz

Wavelength = 17.2 m

Velocity = 20 * 17.2 m/s

Velocity = 344 m/s

Frequency = 200 Hz

Wavelength = 1.72 m

Velocity = 200 * 1.72 m

Velocity = 344 m/s

Frequency = 2,000 Hz

Wavelength = 17.2 cm = 0.172 m

Velocity = 2,000 * 0.172 m/s

Velocity = 344 m/s

Frequency = 20,000 Hz

Wavelength = 1.72 cm = 0.0172 m

Velocity = 20,000 * 0.0172 m/s

Velocity = 344 m/s