3 years ago

To determine the density of an empty plastic jug, you would measure

Physics

2 answers:

dlinn [17]3 years ago

7 0

Answer:

C) the mass and volume

Explanation:

7nadin3 [17]3 years ago

3 0

I think the answer is (C) mass and volume

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A biker to move from speed of 0 m/s to final speed of 25 m/s in 10 s. What is the acceleration of the bike?

Rzqust [24]

Answer:

a = 2.5 m/s²

Explanation:

given,

initial speed = 0 m/s

final speed = 25 m/s

time = 10 s

acceleration of bike is equal to change in velocity per unit time

$a = \dfrac{\Delta v}{t}$

$a = \dfrac{v_f-v_i}{t}$

$a = \dfrac{25-0}{10}$

a = 2.5 m/s²

hence, acceleration of bike is equal to a = 2.5 m/s²

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3 years ago

Doorknobs and faucet handles are examples of a simple machine called a ______.

saveliy_v [14]

A wheel and axel because the axel is a rod in the door and the knob is the wheel portion. However, these things can also be considered a lever.

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3 years ago

A projectile's horizontal range on level ground is r=v20sin2θ/g. at what launch angle or angles will the projectile land at half

Ksju [112]

As given the formula of range is

$R = \frac{v^2sin2\theta}{g}$

now for the maximum range

$\theta = 45$

$R_{max} = \frac{v^2}{g}$

now for half of this maximum range we will have

$\frac{R_{max}}{2} = \frac{v^2sin2\theta}{g}$

$\frac{v^2}{2g} = \frac{v^2sin2\theta}{g}$

now from above we have

$sin2\theta = \frac{1}{2}$

so two possible values for above is given as

$\theta = 15 degree, 75 degree$

so above two angle we will have half of maximum range

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4 years ago

Please help me on questions 3 and 6, thank you! :D I'll give brainliest!

Anarel [89]

Answer:

3. if you increase your mass you also increase the gravitational pull

6. Radiant energy doesn't depend on a medium and sound energy is dependent on a medium.

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i hope this helps-

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3 years ago

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yuradex [85]

Answer: alpha particle. i think

Explanation:

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3 years ago