All categories

3 years ago

On the basis, a given figure, calculate rfficiency of the lever.

Physics

1 answer:

daser333 [38]3 years ago

4 0

Explanation:

here,load=100N

effort=200N

distance travelled by load=2cm

distance travelled by effort=10cm

Now, output work=L*Ld

=100*2

=200g

Again,

input work =E*Ed

200*10

2000j

again, efficiency = output work/input work*100%

200/2000*100%

=10%

please don't forget to write symbol

You might be interested in

Find the area of rectangle given below

Delicious77 [7]

Answer:

6000 cm²

Explanation:

let width of rectangle = $x$

Using Pythagorean theorem,

$x^{2}$ + 50² = 130²

$x^{2}$ = 130² - 50²

$x^{2}$ = 14400

$x$ = 120 cm

area of rectangle = length x width

= 120 x 50

= 6000 cm²

4 0

3 years ago

The point on the earth's surface directly above the point where the fault first ruptures is called the ____________.

Minchanka [31]

This point is called the epicenter. The epicenter is important when it comes to the Earth's surface, because it pinpoints where Earthquakes begin to take shape and occur. It is the place where the most damage is caused by an earthquake and is found above the hypocenter.

8 0

3 years ago

A combination of two or more simple machines is a (n)

Lilit [14]

A compound Machine is 2 machines that work together in order to make a task easier.

8 0

3 years ago

Given two vectors A--> = 4.20 i^+ 7.20 j^ and B--> = 5.70 i^− 2.40 j^ , find the scalar product of the two vectors A-->

Arisa [49]

Answer:

$\vec{A}\times \vec{B}=-51.12\hat{k}$