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3 years ago

The answers to these please

Physics

1 answer:

Mrrafil [7]3 years ago

5 0

Answer:

11. Depression

Explanation:

11. Many people face depression and don't know how to fix or deal with the problem in a healthy way.

12. It can be controlled by the stuff you eat for example if you don't eat lunch you may be hungry which is bad plus the depression.

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The human tibia breaks under an impulse of 55 Ns. If after falling a person typically comes to eat in a time span of 0.005 s how

ozzi

Answer:

0.73 m/s

Explanation:

From Newton second law of motion,

I = m(v-u)...................... Equation 1

Where I = Impulse, m = mass of the person, v = final velocity, u = Initial velocity.

make v the subject of the equation

v =(I/m)+u................. Equation 2

Note: u = 0 m/s as the person is falling from an height.

Given: I = 55 Ns, m = 75 kg, u = 0 m/s

Substitute into equation 2

v = 55/75

v = 0.73 m/s

5 0

4 years ago

During which type of change can an atom of carbon become an atom of nitrogen?

Alika [10]

Answer:

C.) Nuclear

Explanation:

6 0

3 years ago

Read 2 more answers

How much current will flow through your body if the resistance between your hands is 30,000 ohms and you are connected to 120 vo

Law Incorporation [45]

Resistance of our body is given as

$R = 30,000 ohm$

voltage applied across the body is

$V = 120 V$

now by ohm's law current pass through our body is given by

$i = \frac{V}{R}$

$i = \frac{120}{30,000}[\tex][tex]i = 4 * 10^{-3} A$

So current from our body will be 4 * 10^-3 A

4 0

4 years ago

Assume you are going to race the three objects (hollow sphere, disk and ring used in Experiment 8.2) by releasing them from rest

Ann [662]

Answer:

a. The disk

b. Because it has the smallest rotational inertia

Explanation:

a. Which object do you expect to reach the bottom of the inclined plan first?

I would expect the disk to reach the bottom first.

b. Why?

This is because the disk has the smallest rotational inertia.

The rotational inertial of the hollow sphere, disk and ring are 2/3MR², 1/2MR² and MR² respectively.

Since the three objects are rolling from the same height, they have the same mechanical energy.

But, since the disk has the smallest rotational inertia, it would have the smallest rotational kinetic energy and largest translational kinetic energy. The disk's smaller rotational kinetic energy will cause to rotate less but translate more than the other objects and thus reach the bottom first.

7 0

3 years ago

This tasty snack starts as a kernel and is “popped” then

Veronika [31]

Popcorn can be popped by either of the three forms of heat transfer:

Conduction in a pan with hot oil on a stove element.

Convection by an air popper and warm air rising over a heating element... no direct contact with heat source.

Radiation is what occurs in a microwave. Invisible radiant heat activates water molecules in the popcorn.

All the above heat the kernel over 100 Celsius. Water vaporizes/boils (latent heat) and erupts through the kernel.

Mmmm popcorn watch out for the lipids (fat in the oil and butter)

6 0

3 years ago