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Juliette [100K]

2 years ago

5

An object of mass 30 kg is falling in air and experiences a force due to air resistance of 50 newtons. Calcuate the acceleration

of the object

1 answer:

rjkz [21]2 years ago

6 0

Answer:

this answer you question

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An inductive argument guarantees its conclusion<br><br> True<br><br> False

lorasvet [3.4K]

Answer:

False

Explanation:

inductive arguments have some evidence but do not have full assurance of truth of the conclusion

8 0

2 years ago

Read 2 more answers

I need help with this physics question ASAP. Thanks!

Ugo [173]

From the calculation, the horizontal distance is 310 m.

<h3>What is the range of a projectile?</h3>

A projectile has to do with an object that is thrown at an angle. Now we know that the range of the projectile is given by the formula; R = u^2sin2θ/g

We we know that;

g = acceleration due to gravity

θ = angle

u = velocity

R = (60)^2 sin2(30)/10

R = 310 m

Learn more about projectile:brainly.com/question/11422992

#SPJ1

5 0

1 year ago

A soccer ball of diameter 22.6cm and mass 426g rolls up a hill without slipping, reaching a maximum height of 5m above the base

-Dominant- [34]

Answer with Explanation:

We are given that

Diameter=d=22.6 cm

Mass,m=426 g= $426\times 10^{-3} kg$

1 kg=1000 g

Radius,r= $\frac{d}{2}=\frac{22.6}{2}=11.3 cm=11.3\times 10^{-2} m$

1m=100 cm

Height,h=5m

$I=\frac{2}{2}mr^2$

a.By law of conservation of energy

$\frac{1}{2}I\omega^2+\frac{1}{2}mv^2=mgh$

$\frac{1}{2}\times \frac{2}{3}mr^2\omega^2+\frac{1}{2}mr^2\omega^2=mgh$

$v=\omega r$

$gh=\frac{1}{3}r^2+\frac{1}{2}r^2=\frac{5}{6}r^2\omega^2$

$\omega^2=\frac{6}{5r^2}gh$

$\omega=\sqrt{\frac{6gh}{5r^2}}=\sqrt{\frac{6\times 9.8\times 5}{5(11.3\times 10^{-2})^2}}=67.86 rad/s$

Where $g=9.8m/s^2$

b.Rotational kinetic energy= $\frac{1}{2}I\omega^2=\frac{1}{2}\times \frac{2}{3}mr^2\omega^2=\frac{1}{2}\times \frac{2}{3}(426\times 10^{-3})(11.3\times 10^{-2})^2(67.86)^2=8.35 J$

Rotational kinetic energy=8.35 J

6 0

3 years ago

Which best explains satellites? the moon is a satellite of the earth, and the earth is a satellite of the sun. mercury and pluto

Basile [38]

<span>the moon is a satellite of the earth, and the earth is a satellite of the sun.
that is the best answer</span>

6 0

2 years ago

Read 2 more answers

Why do people delte your answer or the question on here i is new so idk can someone plz help?

natita [175]

they are prob deleting you answers/questions because you are violating the Terms of Use or the Community Guidelines.

if you want to know how to get around Brainly and know the rules you can read the

Terms or Use: brainly.com/pages/terms_of_use

and the

Community Guidelines: brainly.com/pages/community_guidelines

:)

5 0

3 years ago