3 years ago

In which of the following situation is work being done?

1 answer:

6 0

A wagon is pulled at an angle of 30 degrees to the horizontal.

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Marysya12 [62]

Answer:

acc. = 4-(-6) /5= 10/5=2 m/s^2

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3 years ago

DENIUS [597]

No because sugar is made up of organic material

5 0

3 years ago

Alex Ar [27]

For me: WASH OUR HANDS REGULARLY

3 0

2 years ago

icang [17]

Answer:

answer is 61.8 m/s; 32.9

l am not sure

3 0

2 years ago

bogdanovich [222]

Explanation:

It is given that,

Frequency of the laser light, $f=4.2\times 10^{14}\ Hz$

Time, $t=3.2\times 10^{-11}\ s$

(a) Let $\lambda$ is the wavelength of this light. It can be calculated as :

$\lambda=\dfrac{c}{f}$

$\lambda=\dfrac{3\times 10^8}{4.2\times 10^{14}}$

$\lambda=7.14\times 10^{-7}\ m$

$\lambda=714\ nm$

(b) Let n is the number of the wavelengths in one pulse. It can be calculated as :

$n=f\times t$

$n=4.2\times 10^{14}\times 3.2\times 10^{-11}$

n = 13440

Hence, this is the required solution.

8 0

3 years ago