All categories

3 years ago

V=d/t

Physics

2 answers:

Sonbull [250]3 years ago

7 0

ANSWER :

v = d/t

v = 140/12.5

v = 11,2 m/s

EXPLAINATION :

V as Velocity (m/s)

D as distance (m)

t as time (s)

Inessa [10]3 years ago

3 0

Answer:

The answer is 11.2 m/s

Explanation:

v=d/t

v=140/12.5

v=11.2m/s

You might be interested in

In the form of radioactive decay known as alpha decay, an unstable nucleus emits a helium-atom nucleus, which is called an alpha

trapecia [35]

Answer:

Velocity will be $v=4.06\times10^7m/sec$

Explanation:

We have given mass of alpha particle m = 4 u $=4\times 1.67\times 10^{-27}kg=6.68\times 10^{-27}kg$

Charge on alpha particle $q=2e=2\times 1.6\times 10^{-19}C=3.2\times 10^{-19}C$

Charge on thorium particle $=90\times 1.6\times 10^{-19}=144\times 10^{-19}C$

Diameter is given as d = 15 fm

So radius $r=\frac{d}{2}=\frac{15}{2}=7.5fm=7.5\times 10^{-15}m$

Potential energy is given by $E=\frac{1}{4\pi \epsilon _0}\frac{q_1q_2}{r}=\frac{Kq_1q_2}{r}=\frac{9\times 10^9\times 144\times 10^{-19}\times 3.2\times 10^{-19}}{7.5\times 10^{-15}}=5.529\times 10^{-12}J$

From energy conservation $\frac{1}{2}mv^2=5.529\times 10^{-12}$

$\frac{1}{2}\times 6.68\times 10^{-27}v^2=5.529\times 10^{-12}$

$v=4.06\times10^7m/sec$

6 0

3 years ago

Which of the following describes an electric conductor?

IrinaVladis [17]

Yo sup??

the correct answer is option C ie

a material that has a low resistance and allows charges to move freely

this is a basic property shown by conductors

Hope this helps

6 0

3 years ago

Read 2 more answers

What will happen to the ball in example C if there is no friction?

Sloan [31]

Answer:

A) The ball will roll forever in a straight path.

8 0

3 years ago

Draw the position vs. time graph for a person walking at a constant speed of 1m/s for 10 seconds. On the same axes, draw graph f

Leto [7]

In both scenarios, the position - time graph will be a linear graph, since the speed is constant, so your position is moving at a consistent pace.

7 0

3 years ago

HELP

sergiy2304 [10]

Answer:

Explanation:

a charged and uncharged object attratct eachother that is the answer your welcome

8 0

3 years ago