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2 years ago

You are an astronaut in space far away from any gravitational field, and you throw a rock as hard as you can. The rock will:

Physics

1 answer:

Nesterboy [21]2 years ago

7 0

Answer:

the rock will continue at the same speed unless it is affected by another force such as gravity and so if you threw it it will continue to move unless affected by a force

Explanation:

this is because Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.

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Sebuah kolom udara memiliki panjang 40cm.Jika garpu kala mempunyai frekuensi 320Hz,maka besarnya cepat rambat gelombang bunyi di

Greeley [361]

Answer:

Velocity of sound is 512 m/s

Explanation:

for first resonance condition we know that

$\frac{\lambda}{4} = L$

$\frac{\lambda}{4} = 0.40$

$\lambda = 1.6 m$

now the frequency is given as

$f = 320 Hz$

now to find the velocity of sound we have

$v = \lambda f$

$v = 1.6 (320)$

$v = 512 m/s$

4 0

2 years ago

According to Aristotle, how fast do heavy objects fall compared to light objects?

Studentka2010 [4]

Answer:

Hey

Your answer would be D (Aristotle stated that heavy objects fall faster than light objects). He thought be comparing a feather falling to a rock falling that you could see that heavier objects fall faster than light ones. of course now we know that all objects fall at the same speed and that weight does not affect that. only air drag affects how fast objects fall.

4 0

2 years ago

300 grams of ethanol is heated with 14640 Joules of energy to reach a final temperature of 30 °C. What was the initial temperatu

levacccp [35]

Answer:

10 °C

Explanation:

Applying

q = cm(t₂-t₁)............... Equation 2

Where q = heat energy, c = specific heat of ethanol, m = mass of ethanol, t₁ = initial temperature, t₂ = Final temperature.

Given: c = 2.44 J/g.°C, m = 300 g, q = 14640 J, t₂ = 30°C

Substitute into equation 2 and solve for t₁

14640 = 2.44×300(30-t₁)

14640 = 732(30-t₁)

732(30-t₁) = 14640

(30-t₁) = 14640/732

(30-t₁) = 20

t₁ = 30-20

t₁ = 10 °C

6 0

2 years ago

Read 2 more answers

What does it mean when there is a curved line going upwards on a graph?<br><br>science 8th grade :)

yulyashka [42]

Answer: it is the asymptote

Explanation: a line that continually approaches a given curve but does not meet it at any finite distance.

8 0

2 years ago

Uses of hydrometer in points

Arisa [49]

Answer:

A hydrometer is an instrument used to determine specific gravity. It operates based on the Archimedes principle that a solid body displaces its own weight within a liquid in which it floats. Hydrometers can be divided into two general classes: liquids heavier than water and liquids lighter than water

7 0

2 years ago