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4 years ago

The velocity of the pull through the ticker time graph it is going 50 times a second and 0.121 m and 10 dots

Physics

1 answer:

mariarad [96]4 years ago

7 0

Answer:

0,6

Explanation:

from the picture there are 10 dots. It means that the time needed to make these dot is

10/50 * 1 sec = 0.2 sec

the length (or we can say distance) of 10 dots are 12 cm. we must convert to meter so it become 0.12 m

v = d/t = 0.12/0.2 = 0.6 m/s

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Which is the balanced equation for Sg + O2 → SO2?

Illusion [34]

Answer:

i may be wrong but i believe its 02--->S02

6 0

3 years ago

A horizontal rod 0.250 m long is mounted on a balance and carries a current. At the location of the rod a uniform horizontal mag

Karo-lina-s [1.5K]

Answer:

The current is 7.87 A.

Explanation:

Given that,

Length = 0.250 m

Magnetic field $B= 6.10\times10^{-2}\ T$

Magnetic force = 0.120 N

We need to calculate the current

Using formula of magnetic force

$F=BIL$

$I=\dfrac{F}{BL}$

Where, B = magnetic field

I = current

l = length

F = force

Put the value into the formula

$I=\dfrac{0.120}{6.10\times10^{-2}\times0.250}$

$I=7.87\ A$

Hence, The current is 7.87 A.

7 0

4 years ago

Which of the following is a chemical property of matter?

adoni [48]

Answer:

The correct answer is combustibility

Explanation:

A chemical property of a matter is a property in which a matter has the tendency to change its form through chemical reaction(s).

A matter is said to have combustibility property if it can undergo combustion. Combustion is a chemical process in which a substance burns in excess oxygen to produce carbon dioxide and water.

Consider the equation below

CH₄ + O₂ ⇒ CO₂ + H₂O

The equation above shows methane burning in excess oxygen to produce carbon dioxide and water

7 0

4 years ago

Read 2 more answers

Guys I really need help with these 2 questions , it's for my final plz help asap

mars1129 [50]

Answer:

(1) Initial speed, $u=0$

Final speed, $v=165.76m/s$

Average speed, $v_a_v_g=82.87m/s$

(2) Force of gravity, $F_g=12.8\times10^1^5N$

Explanation:

(1)

Given,

Distance, $S=300meter$

Time, $t=3.62second$

It is given that drag racer started at rest.

So Initial speed, $u=0$

Using Newton's second equation of motion,

$S=ut+\frac{1}{2}at^2\\300=0+\frac{a\times3.62^2}{2} \\a=45.79m/s^2$

Newton's first equation of motion,

$v=u+at\\=0+45.79\times3.62\\=165.76 m/s$

So, Final speed, $v=165.76m/s$

Average speed is defined as totle distance divided by totle time.

$v_a_v_g=\frac{S}{t}\\=\frac{300}{3.62} \\=82.87m/s$

So, Average speed, $v_a_v_g=82.87m/s$

(2)

Gravitation: It is the natural phenomenon in which two different bodies attract each other by virtue of their masses.

According to Newton's law of gravitation, the force of attraction between two bodies is directly proportional to the masses of the bodies and inversely proportional to square of distance between centers of mass of the bodies.

$F_g\propto\frac{m_1m_2}{r^2} \\F_g=G\frac{m_1m_2}{r^2}$ where $G$ is constant of proportionality and known as gravitation constant.