3 years ago

What should you do if someone faints?

1 answer:

4 0

Lie them on their back, check breathing, lift legs above head, remove right clothing. if they aren’t breathing start CPR and call 911

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1. An object 20 cm away from a lens produces a focused image on a film 15 cm away, what is the focal length

morpeh [17]

8.6 cm

Explanation:

Step 1:

In this we have to find the focal length of converging lens.

To find focal length we have,

$(1/u) + (1/v) = (1/f)$

where u = Object distance

v= Image distance

f = Focal length

Step 2:

$(1/f) = (1/20) + (1/15)$

(1/f) = 0.116

f = 1/0.116

f = 8.6 cm

6 0

3 years ago

When a mass of a cart is 10 kg, and an applied force is 5 N, The acceleration of the cart is

cestrela7 [59]

Answer:

0.5 m/s2

Explanation:

F = ma

5 = 10a

a = 5/10

a =0.5

8 0

3 years ago

The atomic mass is the number of ______+______ in an atom.

Juli2301 [7.4K]

Hello!

In chemistry, atomic mass is normally written in amu. This stands for atomic mass units.

Within an atom, there are three main parts: protons, neutrons, and electrons. Between these three, electrons are extremely light. However, protons and neutrons both weigh 1 amu.

Thus, this means to get the atomic mass, add together the protons + neutrons.

Hope this helps!

6 0

4 years ago

Read 2 more answers

An object has an acceleration of 6 m/s/s. If the net force

Bond [772]

Answer:

$F = ma \\ a = \frac{F}{m} = 6 \\ when \: force \: is \: trippled \: and \: mass \: is \: halved \\ a = \frac{3F}{ \frac{1}{2} m} = \frac{3}{2} \times 6 \\ a = \frac{(3 \times 6)}{2} \\ a = \frac{18}{2} \\ a = 9 \: m {s}^{ - 2}$

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3 years ago

Which statement correctly describes force and energy?

kaheart [24]

Dees nuts ha got em

4 0

3 years ago