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evablogger [386]

2 years ago

13

If mass is measured in kg and acceleration is measured in m/s^2, what units would force be measured in? This unit is also know a

s a newton (N).

1 answer:

Vlada [557]2 years ago

5 0

Mass=kg
Acceleration=m/s^2

Using Newtons second law

$\\ \sf\longmapsto Force=Mass\times Acceleration$

$\\ \sf\longmapsto Force=kgm/s^2$

$\\ \sf\longmapsto Force=Newton(N)$

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A long wire is known to have a radius greater than 4.0 mm and to carry a current uniformly distributed over its cross section. i

ollegr [7]

Magnetic field outside it due to long wire is given by

$B = \frac{u_o i}{2 \pi r}$

Magnetic field due to long wire inside wire at any point

$B = \frac{u_o i r}{2 \pi R^2}$

Now the ratio of two magnetic field is given by

$\frac{B_{in}}{B_{out}} = \frac{r_1/R^2}{1/r_2}$

$\frac{0.285}{0.200} = \frac{4*10}{R^2}$

$1.425 = \frac{40}{R^2}$

R = 5.3 mm

8 0

2 years ago

Light of a given wavelength is used to illuminate the surfacce of a metal, however, no photoelectrons are emitted. In order to c

Jlenok [28]

Answer:

B. use light of a shorter wavelength.

Explanation:

We know that

$E= \frac{hc}{\lambda}$

h= plank's constant

c= speed of light

λ= wavelength of the incident light

so, in order to have sufficient energy for for the emission of electron, the incident's radiation must have λ small enough.

B. use light of a shorter wavelength.

6 0

2 years ago

Hi! Can somebody please help?

dezoksy [38]

Answer:

Diagram A will reach the top first.

Explanation:

If it is going straight, it will go slower. The higher the movement speed the faster it is. Hope this helps!

7 0

3 years ago

Differences Between light year and astronomical unit in two points .

Marina CMI [18]

Answer:

A light year is the distance light travels in a year. ... And an astronomical unit is the average distance between the earth and the sun. So the distance to the sun is by definition one AU. A parsec is the distance at which one astronomical unit subtends an angle of one second of arc.

7 0

3 years ago

Read 2 more answers

What is the value of work done on an object when a

tino4ka555 [31]

W = F * s
Here, F = 50 N
s = 15 m

Substitute their values,
W = 50 * 15
W = 750 J

In short, Your Answer would be 750 Joules

Hope this helps!

7 0

2 years ago