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1. How does Newton’s second law of physics apply to lifting weights?
A.
Lifting weights requires the proper form and net force.
B.
Without force or motion, the weights are an unbalanced force.
C.
It requires more force to move weights, and this builds muscles.
D.
Weights are an immovable object, and the force is provided by muscles.

2. Why would oxygen levels make a difference in athletic performance?
A.
Muscles need oxygen to function well.
B.
It is just one biometric that is studied.
C.
Oxygen is important for everyone, not just athletes.
D.
Athletes require less oxygen than those who are less active.

3. Which is an example of the study of physics and the human body?
A.
determining the optimum resting heart rate
B.
testing the impact of a car crash on the body
C.
calculating how to beat an existing sports record
D.
training warehouse workers on how to properly move boxes

4. The laws of motion do NOT apply to the human body.
A.
True

B.
False

PLEASE NO LINKS

Answers

Answer 1

Answer:

1 is A

2 is A

3 is B

4 is B

Explanation:

number three is a dead giveaway


Related Questions

NEED HELP!!!! 10 POINTS!!

Paralysis is often the result of severe spinal injuries. Why is this often the case?
A.
All movement begins in the spine and radiates through the body.
B.
The spine in the only part of the body that is directly connected to the brain.
C.
The spine houses much of the central nervous system, which controls movement.
D.
The bones in the spine cannot regenerate and grow, unlike other bones in the body.

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Answers

I think it may be C. Good luck

Due to paralysis, the result is severe spinal injuries. This is often the case because the spine houses much of the central nervous system, which controls movement. Hence, option C is correct.

What is Paralysis?

You might become paralyzed, and unable to move on your own when something interferes with the nerve impulses that muscles receive from the brain. Strokes, spinal cord injuries, and neurological diseases like multiple sclerosis are among the common causes of paralysis.

When you are unable to move your muscles voluntarily, you are said to be paralyzed. Paralysis results from nerve system issues.

Muscles receive messages from healthy nerves. This causes the muscles to contract. When you’re paralyzed, or have paralysis, you can’t move certain parts of your body.

Hence, it concludes that option C is correct.

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in addition to studies of the body system of corals what studies in earth science might increased scientists understanding of an ability to predict coral bleaching

Answers

Answer: they could get a piece of the coral and run tests on it

Explanation:

I need help asap I would be happy if you helped me
assuming air resistance is negligible, how fast would ball be travelling as it hits the floor after free-falling from rest for 5 second​

Answers

vf=gt so 9.8•5=49m/s

what is the weight of a 1.8 kg computer

Answers

Answer:

17.64 Newtons

Explanation:

In order to find the weight of an object we take the mass in kilograms and multiply it by the gravitational constant (9.8), which is 1.8 * 9.8 = 17.74 Newtons.

Weight is force on the body of given mass 1.8 Kg. Weight is 17.64 N.

What is force?

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Weight of body is force due to gravity,

F = mg

F = 1.8*9.8

F = 17.64 N

Weight of the body is given as 17.64 N.

Weight is force on the body of given mass 1.8 Kg. Weight is 17.64 N.

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5.) How could we have improved this activity to be more precise?

ball on ramp ​​

Answers

Explanation:

I don't understand this question

could you please explain

Explanation:

Well ball on ramp .Which factors are affected?

Centre of massAcceleration due to gravity

Mass of ball .Force applied

So if we put the ball right above the centre of mass it can be best stabled

Why are occupants of the international space station weightless?

Answers

The astronauts, the ISS itself and other objects in Earth orbit aren't floating, they are actually falling. ... So, as they accelerate towards the Earth, the Earth curves away beneath them and they never get any closer. Since the astronauts have the same acceleration as the space station, they feel weightless.


( can I please get the brainliest, thanks)

To improve your flexibility you can do which of the following

Answers

Answer:

Stretching

Explanation:

Stretching is a great way to improve your flexibility!

An object is moving initially with a velocity of 5.6 m/s. After 3.1 s the object's velocity is -2.7 m/s. What is the object's average acceleration during this time

Answers

Answer:

-2.68m/s²

Explanation:

To find acceleration use the formula:

acceleration = change in velocity ÷ time

change in velocity = -2.7 - 5.6 = -8.3m/s (final velocity - initial velocity)time = 3.1s

Substitute in the values:

acceleration = -8.3 ÷ 3.1

acceleration = -2.67741.. ≈ -2.68m/s²

Hope this helps!

1. Two balloons are charged with an identical quantity and type of charge: -6.25C. They are held apart at a separation distance of 0.67m. Determine the magnitude of the electrical force of repulsion between them. I​

Answers

Answer:

The electric force between them is 878.9 N

Given:

Identical charge C

Separation between two charges  m

For finding the electrical force,

According to the coulomb's law

Here, force between two balloons are repulsive because both charges are same.

Where    N  Therefore, the electric force between them is 878.

Explanation:

I need help please...

Answers

Answer:

the order is written in the attached image

Explanation:

the amount of energy available to do work is called:

Answers

Answer:

Gibbs, free energy

Explanation:

which of the following is an example of the law of multiple proportions?

Answers

The answer option which is an example of the law of multiple proportions is: B) Two different compounds formed from carbon and oxygen have the following mass ratios: 1.33 g O: 1 g C and 2.66 g O: 1 g C.

The Law of Multiple Proportions is also referred to as Dalton's Law and it states that when two chemical elements combine to form more than one chemical compound, the masses (weights) of one chemical element that combine with a fixed mass (weight) of the other chemical element will always be in a ratio of small whole numbers.

According to the Law of Multiple Proportions, when two chemical elements combine to form two different chemical compound, the masses (weights) of one chemical element that combine with 1 gram of the other chemical element can be expressed as a ratio of small whole numbers.

For example, carbon and oxygen react to form either carbon monoxide and carbon dioxide.

Carbon monoxide (CO):

12 grams of C = 16 grams of O.

1 gram of C = 1.33 gram of O.

Carbon dioxide ([tex]CO_2[/tex]):

12 gram of C = 32 grams of O.

1 gram of C = 2.66 gram of O.

Ratio of oxygen (O) = 16:32 = 1:2 (Law of Multiple Proportions).

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Your question is lacking the necessary answer options, so I will be adding them here:

A. A sample of chlorine is found to contain three times as much Cl-35 as Cl-37.

B. Two different compounds formed from carbon and oxygen have the following mass ratios: 1.33 g O: 1 g C and 2.66 g O: 1 g C.

C. Two different samples of table salt are found to have the same ratio of sodium to chlorine.

D. The atomic mass of bromine is found to be 79.90 amu.

E. Nitrogen dioxide always has a mass ratio of 2.28 g O: 1 g N.

Why can’t you compress gas but you cannot compress a liquid

Answers

There is no space between the individual particles, so they cannot pack together. The kinetic-molecular theory explains why gases are more compressible than either liquids or solids. Gases are compressible because most of the volume of a gas is composed of the large amounts of empty space between the gas particles.

Help if you understood pleas and rhanks

Answers

Answer:

the velocity is 4 ms, if it asked for change it be 0 m/s but its asking for velocity so option 4, 4m/s

Explanation:

The correct answer is Option 2: 2 m/s². The acceleration of the object at 8 seconds is 2 m/s². Note that the negative sign indicates that the acceleration is in the opposite direction of the velocity.

To calculate the acceleration of the object at 8 seconds, we need to look at the change in velocity over time (acceleration is the rate of change of velocity).

Given the graph, we can see that at 8 seconds, the velocity of the object is 6 m/s.

Now, let's find the change in velocity between 8 seconds and 10 seconds:

Change in velocity = Final velocity - Initial velocity

Change in velocity = 2 m/s - 6 m/s

Change in velocity = -4 m/s

Next, find the time interval between 8 seconds and 10 seconds:

Time interval = Final time - Initial time

Time interval = 10 s - 8 s

Time interval = 2 seconds

Now, calculate the acceleration:

Acceleration = Change in velocity / Time interval

Acceleration = (-4 m/s) / (2 s)

Acceleration = -2 m/s²

The correct answer is Option 2: 2 m/s². The acceleration of the object at 8 seconds is 2 m/s². Note that the negative sign indicates that the acceleration is in the opposite direction of the velocity.

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essay on topic of community forest​

Answers

Answer: https://www.fs.usda.gov/managing-land/urban-forests/ucf

Explanation:

if you go to this link it will give you some facts

Identify some sports or activities you can do to improve your overall health and explain how physical activity can improve your

Answers

Answer:

foot ball.

Explanation:

exercise is the specific method which helps one's own health both physical and mental health. Mental hygienic is purely rely on the physical health well-being. playing the football needs to run from one station or position to another positiin. in the due process, the flow of blood of the individual circulate faster than other rest days as a result of this, fats in the arteries are burnt down.Blood pressure remains constant as always. Diabetes will be free for the people who plays football because carbohydrates are also burnt down into simpler form of the substance thereby releasing the required amount of energy.

Answer the question below and show all work.

Answers

Answer:

Explanation:7

Which of the following is a true statement about learning?
A. Learning does not result in lasting change.
B. Learning happens through experience or practice.
C. Learning does not enable a person to continue to do something.
D. Learning involves activities that happen automatically.

Answers

Answer:

B. learning happens through experience and practice.

A rainbow is seen in a rainy day. Describe its reason

Answers

Answer:

A rainbow requires water droplets to be floating in the air. That's why we see them right after it rains. The Sun must be behind you and the clouds cleared away from the Sun for the rainbow to appears.

Which force is making a difference in the weight of each person?


A

applied

B

gravitational

C

normal

D

tension

Answers

The force is different because of the amount of weight applied so the answer is A

The force that makes a difference in the weight of each person is Gravitational. Correct option is B.

Gravitational force is a fundamental force of nature that exists between any two objects with mass. It's the force that keeps us and everything else on Earth anchored to its surface. This force is proportional to the mass of the objects involved and inversely proportional to the square of the distance between them.

For example, if you were standing on a bathroom scale, the reading on the scale represents the force of the Earth's gravity acting on your body, which is why it's often referred to as your "weight." The actual mass of an object remains constant regardless of its location, but its weight can vary depending on the strength of the gravitational field at different locations (e.g., the weight on the Moon would be less than on Earth due to the Moon's weaker gravitational pull).

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an engineer is developing a conveyor belt to help move heavy boxes in factories. The device should be able to move boxes from the first floor to the second floor of a factory. The engineer is building a full- sized model to test her design.

Answers

Answer:

This conveyor belt should be connected to fixed pulleys in case their total effort is less than the load. But if it's not that, the belt should be connected to movable pulleys.

Explanation:

[tex].[/tex]

Answer:

this conveyer belt should be connected to fixed pulleys in case their total effort is less than the load . but if it's not that the belt should be connected to movable pulleys

What do "Newton's apple" and the moon have in common?

Answers

Answer:

Both these motions are caused by the Gravitational force of earth.

Explanation:

Both these motions are caused by the Gravitational force of earth.

what are the properties of gravitational force

Answers

Explanation:

It obeys the inverse square law.

It is always attractive in nature.

It is a long range force. ...

The graviton is the field particle of gravitational force.

Answer:

Gravitational force−Properties:

(1) It is a universal attractive force. It is directly proportional to the product of the masses of the two bodies.

(2) It obey inverse square law.

(3) It is the weakest force known in nature.

How does a balanced chemical equation demonstrate the Law of Conservation of Mass?

Answers

Answer:

It shows the same number of atoms of each element on both sides of the equation

A balanced equation demonstrates the conservation of mass by having the same number of each type of atom on both sides of the arrow.

Explanation:

Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions.

A balanced chemical equation shows that total number of atoms before reaction is equal to total number of atoms after the reaction. As, the total mass of any object lies on its atom, a balanced chemical equation demonstrate the Law of Conservation of Mass.

What is Dalton's atomic theory?

The Dalton's atomic theory is as follows:

Atoms are the incredibly minuscule building blocks of all stuff.A given element's atoms are all the same size, mass, and other characteristics. Distinct elements' atoms have different mass, size, and other characteristics.Atoms can never be divided, produced, or eliminated.Chemical compounds can be created by combining atoms of various elements in straightforward whole number ratios.Atoms can be joined together, split apart, or altered during chemical processes.

The total number of atoms before and after a reaction are equal, according to a chemical equation that is in balance. A balanced chemical equation illustrates the Law of Conservation of Mass since every object's atom holds the entirety of its mass.

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what do all forms of electromagnetic radiation have in common?

Answers

Answer:

All electromagnetic waves have two wavefronts, which are an oscillating electric field and an oscillating magnetic field.

Explanation:

A basketball is tossed upwards with a speed of 5.0 m/s. We can ignore air resistance. What is the maximum height reached by the basketball from its release point? (Answer using a coordinate system where upward is positive.)

Answers

Answer:

the maximum height is 1.276 meters

How can people check whether information they found on the Internet is reliable?
Information online is true because it was verified before being put online.
People can determine if what they read agrees with other information they know is true.
There is no real way to check.
People can check the publication date.
DONE

Answers

Answer:

people can determine if what they read agrees with other information they know is true.

Explanation:

edge 2021

Answer:

B. Is correct

Explanation:

How long would it take for a person to sprint from the 0m line to the 100m line if they are traveling forward at 6m/s?

Answers

Answer:

This section assumes you have enough background in calculus to be familiar with integration. In Instantaneous Velocity and Speed and Average and Instantaneous Acceleration we introduced the kinematic functions of velocity and acceleration using the derivative. By taking the derivative of the position function we found the velocity function, and likewise by taking the derivative of the velocity function we found the acceleration function. Using integral calculus, we can work backward and calculate the velocity function from the acceleration function, and the position function from the velocity function.

Explanation:

Derive the kinematic equations for constant acceleration using integral calculus.Use the integral formulation of the kinematic equations in analyzing motion.Find the functional form of velocity versus time given the acceleration function.Find the functional form of position versus time given the velocity function.

A ball is accelerating down a hill. Which statement is true?

the potential energy and the kinetic energy both decrease

the potential energy and the kinetic energy both increase

the potential energy decreases and the kinetic energy increases

the potential energy increases and the kinetic energy decreases

Answers

Answer:

The potential energy increases and the kinetic energy decreases

If the activity of a source is 70 Bq after 2 years, and 35 Bq after 15 years. How long will be until the activity is 8.75 Bq?​

Answers

Answer:

N = N0 e^-kt          calling k the decay constant

70 = N0 e^-2 kt

35 = N0 e^-15 k

2 = e^(-2 + 15) k

.693 = 13 k

k = .0533

N0 = N e^kt

N0 = 70 e^(.0533 * 2) = 77.87

8.75 = 77.87 e^-(.0533 t)

ln .1124 = -.0533 t

t = -ln .1124 / .0533 = 41 yr

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