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Lerok [7]
3 years ago
14

A farsighted girl has a near point at 2.0 m but has forgotten her glasses at home. The girl borrows eyeglasses that have a power

of 2.75 diopters. These are not going to make her able to view normally. With these eyeglasses, what is the new near point of the girl, assuming that she wears them extremely close to her eyes

Physics
1 answer:
lisov135 [29]3 years ago
6 0

Find the pictures in the attachment

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Which property of potential energy distinguishes it from kinetic energy
Bas_tet [7]

Answer:

Shape and position

Explanation:

Hope this helps! :)

7 0
2 years ago
The Carson family's pancake recipe uses 2 teaspoons of baking powder for every 1/3 of a teaspoon of salt. How much baking powder
melomori [17]

Answer:

6 teaspoons of baking powder required.

Explanation:

Given that

According to the recipe of pancake,

For every \frac{1}{3} teaspoon of salt, 2 teaspoons of baking baking powder is required.

To find:

How much baking powder will be needed, if 1 teaspoon of salt was used ?

Solution:

This problem can be solved using ratio.

\frac{1}3 teaspoon of salt : 2 teaspoons of baking powder

Let us multiply the above ratio with 3.

\frac{1}{3}\times 3 teaspoon of salt : 2 \times 3 teaspoons of baking powder

OR

1 teaspoon of salt : 6 teaspoons of baking powder

So, answer is <em>6 teaspoons </em>of baking powder required.

Also, we can use the unitary method:

\frac{1}3 teaspoon of salt needs =  2 teaspoons of baking powder

1  teaspoon of salt needs =  \frac{2}{\frac{1}3} teaspoons of baking powder

1  teaspoon of salt needs = 2 \times 3 = <em>6</em>  teaspoons of baking powder needed

So, the answer is:

<em>6 teaspoons of baking powder </em>required.

5 0
3 years ago
Read 2 more answers
Which of the following is an example of acceleration? I. A car speeds up. II. A car slows down. III. A car travels in a straight
svetlana [45]
I., II., and IV. are examples of acceleration. III. isn't.
6 0
3 years ago
action and reaction are equal in magnitude and opposite in direction then why do they not balance each other.​
NeX [460]

Answer:

Newton’s third law of motion states that every action has an equal and opposite reaction. This indicates that forces always act in pairs. Reaction forces are equal and opposite, but they are not balanced forces because they act on different objects so they don’t cancel each other out.

7 0
2 years ago
Uphill escape ramps are sometimes provided to the side of steep downhill highways for trucks with overheated brakes. For a simpl
o-na [289]

Answer:

404.4 m

Explanation:

Converting the initial speed from km/h to m/s then

140\times \frac {1000m}{3600s}=38.88888889 m/s \approx 38.89 m/s

The acceleration is resolved as shown in the figure hence

deceleration of the truck along the inclined plane will be

a=-g sin \theta where g is acceleration due to gravity

Substituting g with 9.81 m/s^{2} then

a=-9.81 m/s^{2} sin 11^{\circ}=-1.871836245\approx -1.87 m/s^{2}

Using kinematic equation

v^{2}=u^{2}+2as and making s the subject then

s=\frac {v^{2}-u^{2}}{2a} where v and u are final and initial velocities respectively

Substituting 0 for v, 38.89 m/s for u and -1.87 m/s^{2} then

s=\frac {0^{2}-38.89^{2}}{2\times -1.87}=404.3936096 m\approx 404.4 m

3 0
3 years ago
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