Word Done And Force.

A force of 9.0N is applied to a body at rest on a Smith horizontal surface. if the
body has a mass of 18.0kg and it moves in the direction of the force, Find the work
done in
(a) the first four seconds
(b) the fourth seconds.

Maths

Pls help me out, I hv 4got hw 2 solve it

Machine

A lift of mass 200kg,containing a load of mass 50kg rises through 30m in 15sec.calculate
the average power output of the motion in the absence of friction

54cm^3

Electricity Field

Calculate the length of a constantin wire of diameter 0.6mm and resistivity 1.1x10^-6
ohm require to construct require of resistance 35 ohm

9.0 ohms

The formula for this operation is l = RA/p
Where
R = Resistance = 35 Ohms
A = Cross-sectional Area = 3.142(d/2)^2
Since d = diameter = 0.6mm = 0.0006m
A = 3.142(0.0006/2)^2 = 2.8278x10^-7

Assuming from what you stated above you mean
p = Resistivity = 1.1x10^-6 Ohm-meter

L = (35(2.8278x10^-7))/1.1x10^-6
L = 8.9975m
Therefore, the length of the wire is 8.9975m approximately 9m.

Formula Reference
https://ni.ckzom/907

Mathematics: Topic Number Pattern Of The Counting In 5s

How many 5kobo coins make up of #2•50(naria).

#2.50 = 250 kobo
Therefore, 250 / 5 = 50
This implies that 50 5kobo coins makes up #2.50