A 21.2-kg object is being pulled in one direction by a force of 68.8 N while a force of 26.5 N pulls in the opposite direction. What is the acceleration of the object

Answer: False

People age 65 and older still need exercise. Although the intensity of each workout won't be as high compared to younger ages. Everyone needs exercise to keep their heart healthy, to lower the bad cholesterol, etc.

Answer:

no

Explanation:

very false

Answer:

d

Explanation:

Answer:

D

Explanation:

Gravitaional potential energy is energy that is stored by moving an object to a greater height above the ground.

im not sure if its right, but i tried :)

hydrogen: 4

nitrogen: 4

oxygen:  12

this should be correct

Answer:

the 3rd pic is correct

Explanation:

because the arrows are going away from each other.

Answer:

mass= 50kg

since the mass is constant everywhere

Answer:

3 to 4

Explanation:

By the time they reach 3 they have achieved speaking 200 or even more

Answer:

My answer was A not sure if its correct as i am still doing the rest of the questions.

Explanation:

The particles will have more space between them and will be moving at higher speeds as steam compare to water.

The quantity of heat (in joules or calories) per mole or unit mass of the substance undergoing a change in state is the typical way to represent latent heat.

The latent heat involved in melting solids or freezing liquids is referred to as the "heat of fusion," while the latent heat involved in vaporizing solids or liquids or condensing vapor is referred to as the "heat of vaporization."

When water boils at 100°C and turns into steam, water vaporizes into steam by absorbing heat of vaporization. This heat energy remains in the steam as kinetic energy and makes their movement fast.

So, The molecules will have more space between them and will be moving at higher speeds as steam compare to water.

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Answer:

35 miles

Explanation:

5 times 7

Answer:

because if the plant that produced that type of energy broke down you would need another type of energy to replace it.

Explanation:

The answer to the question is an orgamisn

Answer:

The thing having life are called living things

Answer:

their masses and their distances from Mars

Explanation:

Hope this helped

Also can u pls mark me brainliest

Answer:

C: Protons have an electrical carge but neutrons have no charge.

Explanation:

Protons are positively charged, neutrons are neutrally charged, and electrons are negatively charged.

An action reaction pair of forces exists between : ( A ) The aerialist arms and legs

Action-reaction pair of force comprises of the force that acts on the object as a action force and the force experiened by the object due to newton third law of motion as the reaction force. Therefore in the diagram an action reaction pair of forces can be experienced between the aerialist arms and legs

Hence we can conclude that An action reaction pair of forces exists between : ( A ) The aerialist arms and legs.

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Answer:

C

Explanation:

Edge2020

By Newton's second law, the net force on the car is

∑ F = m a

where m is the mass of the car and a is magnitude of the acceleration.

The car is slowing down, so the net force opposes the direction in which the car is moving. Vertically, the car is in equilibrium, the net force is entirely due to friction. Taking the direction opposite the car's motion to be negative, we have

- 200 N = (200 kg) (-a)

a = (200 kg) / (200 N)

a = 1 m/s²

If you're also supposed to find the coefficient of kinetic friction, use the fact that the car the vertical forces cancel out, namely

n + (-w) = 0

where n is the magnitude of the normal force and w is the car's weight. The friction force f is proportional to the normal force n by a factor of µ, the coefficient of kinetic friction, such that f = µ n. Then

f / µ = w

(200 N) / µ = (200 kg) (9.80 m/s²)

µ = (200 N) / ((200 kg) (9.80 m/s²))

µ ≈ 0.102

Answer:

False

Explanation:

If I am not mistaken reflection is when light bounces off of a surface such as snow,water,glass ect. and refraction is when,the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density?

Answer:

Treatment options include medications, particularly tricyclic antidepressants and SSRIs,21,22 and psychotherapy. Nonpharmacologic treatment strategies (e.g., massage, acupuncture) may also be beneficial. patients initially presented with symptomatic pain due to a shoulder injury.

Somatoform disorders can be treated by psychotherapy and through medications.

Somatoform disorders are a group of psychiatric disorders whereby patients have a wide variety of clinically significant but unexplained physical symptoms.

The treatment options for somatoform disorders include:

Therefore, somatoform disorders can be treated by psychotherapy and through medications.

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Answer:

1. 2380m

2. 13.6m

3. 132 Hz

Answer:

both

Explanation:

because when it is hot in summer 5hat is the air and the sund u can warm things up and then it get hot

Answer:

1. Somewhat 2.Yes

Explanation:

Answer:

C,a

Explanation:

Answer:

a = 3.5 m/s^2

Explanation:

a basic equation of physics is f = ma

we can rearrange that to a= f/m

so plug in your values: a = 175 / 50

you get a = 3.5 m/s^2

Answer:

Av = 25 [m/s]

Explanation:

To solve this problem we must use the definition of speed, which is defined as the relationship between distance over time. for this case we have.

[tex]Av=\frac{distance}{time}[/tex]

where:

Av = speed [km/h] or [m/s]

distance = 180 [km]

time = 2 [hr]

Therefore the speed is equal to:

[tex]Av = \frac{180}{2} \\Av = 90 [km/h][/tex]

Now we must convert from kilometers per hour to meters per second

[tex]90[\frac{km}{h}]*1000[\frac{m}{1km}]*1[\frac{h}{3600s} ]= 25 [m/s][/tex]

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Actually Welcome to the Concept of the Rays of light.

Since we know that, The light ray on a shiny surface makes a angle with the normal, hence The Angle of incidence is equal to angle of reflection made with Normal Axis in the middle.

Thus Option c.) is correct.

C.) is the Answer.

The angle of reflection given the incident ray from the given diagrams is option C.

When a light ray strikes the shining surfaces, the part of the light gets refracted. The bouncing back of the light is called reflection. When the light strikes the surface is called an incident ray.

When the light ray incident on the surface, the light returns back to the same medium is called reflection. The laws of reflection are, the angle of incidence is equal to the angle of reflection, and the incident ray, reflected ray, and normal takes place in the same plane. The speed of light remains the same in the process of reflection.

The reflected light ray changes the path of direction in the same medium. When a light ray enters from one medium to another, the speed of light gets decreases.

Thus, the ideal solution is option C.

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