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olya-2409 [2.1K]

3 years ago

10

What volume of air containing 21% of oxygen (by volume) is required to completely burn 10g of sulphur which has a purity level o

f 98%?

1 answer:

coldgirl [10]3 years ago

8 0

Answer:

try using google mabey that might help

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aalyn [17]

Newtons Second Law of Motion

5 0

2 years ago

Read 2 more answers

The angular quantities: angular displacement, angular velocity, angular acceleration, are defined in a very similar way to the l

Lena [83]

Answer: [tex]12.415 rad.s^{-1}[/tex]

Explanation: Angular velocity is the rate of change in angular displacement.

We know that:

Angular velocity, $\omega= \frac{\Delta \theta}{t}$ ....................(1)

where:

t= time

$\Delta \theta$ = angular displacement in radians

<u>Given that:</u>

t = 4.10 s

Δθ = 50.9 radian

Putting the respective values in eq. (1)

$\omega = \frac{50.9}{4.10}$

$\omega = 12.415 rad.s^{-1}$

4 0

3 years ago

How do lines of latitude affect how direct or indirect the Sun’s rays are on the Earth?

Sonja [21]

Answer:

Explanation: We have seasons because Earth's axis – the imaginary line that goes through the Earth and around which the Earth spins — is tilted. It's tilted about 23.5 degrees relative to our plane of orbit (the ecliptic) around the Sun. As we orbit our Sun, our axis always points to the same fixed location in space. Our northern axis points almost directly toward Polaris, the North Star.

6 0

3 years ago

A pickup truck is carrying a toolbox, but the rear gate of the truck is missing, so the box will slide out if it is set moving.

Anon25 [30]

Answer:

t=7.33 s

Explanation:

According to Newton's second law:

$\sum F=m*a$

because we don't want the box to slide, the acceleration has to be zero.

$\sum F=-F_{friction}+F_{truck}=0\\F_{truck}=F_{friction}\\F_{friction}=\µ*m*g=0.500*9.81*m\\F_{friction}=4.91*m$

we know that:

$F=m*a\\4.91m=m*a\\a=4.91m/s^2$

Now having the acceleration, we can use the following formula.

$v_f=a*t\\t=\frac{36.0m/s}{4.91m/s^2}\\\\t=7.33s$

7 0

3 years ago

Linear Velocity What is the linear velocity in cm>min for any edge point of a 12-cm-diameter CD (compact disc) spinning at 10

daser333 [38]

3,89,988 cm/min is the linear velocity

Given,

Diameter of CD = 12 cm

So, Radius of CD = 6 cm

CD is spinning at 10350 rev/min

Firstly , convert rev/min into rad/min

1 rev = 2π radians

10350 rev/min = 10350 × 2π

= 64998 rad/min

Formula used,

$v=rw$ where,

$v$ is the Linear velocity

$r$ is the radius

$w$ is the angular velocity

$v$ = 6 cm × 64998rad/min

= 3,89,988 cm/min

Thus, linear velocity for any edge point of a 12-cm-diameter CD (compact disc) spinning at 10,350 rev/min is 389988 cm/min.

Learn more about Angular speed here brainly.com/question/540174

#SPJ4

8 0

2 years ago