Which of the following might be the material list for an experiment?
A data tables and graphs
B.meters, liters, and kilograms
C plastic containers, soil, water, thermometers, and plants
D temperature, light, and time​

Answers

Answer 1

Answer:

C

Explanation:


Related Questions

When your blood pressure is low, choose a choice below that explains what occurs.
A. The nervous system signals smooth muscles in the blood vessels to relax to decrease blood pressure.
B. The nervous signals smooth muscles in the blood vessels to relax to increase blood pressure.
C. The nervous system signals smooth muscles to contract to decrease blood pressure.
D. The nervous system signals smooth muscles in the blood vessels to contract to increase blood pressure

Answers

Answer:

The correct option is;

D. The nervous system signals smooth muscles in the blood vessels to contract to increase blood pressure

Explanation:

The contraction or relaxation of the vascular smooth muscles lead to the blood vessel volume change and blood pressure change such that the blood is redirected to regions of the body that requires instantaneous increased oxygen intake. As such the nervous system signals the blood vessel's vascular smooth muscle to contract, through vasoconstriction so as to raise the blood pressure, when the blood pressure is low.

The boundary between areas of high and low pressure:
A Front
B Barometer
C Weather
D Air pressure

Answers

The answer is A, Front is a weather system that separates it.

If an object has two forces acting on it, how can the net force equal 0?

Answers

Answer:

Check explanation.

Explanation:

Net force is essentially the sum of the forces enacting upon an object. One example of net force is gravity and normal force. It is commonly accepted that every object has a force acting upon it, even if it is stationary. To give an example, the weight of an object has a force upon the earth but the earth pushes back, essentially meaning that the object will not sink.

What does hydrosphere and cryosphere both have in common?

Answers

Answer:

cryosphere is all those areas of earth where the surface is frozen while hydrosphere is all waters of earth, as distinguished from the land and the gasses of the atmosphere

A car traveling initially at the speed of 30 m/s slows down at the rate of -2m/s^2 for a distance of 60 meters. What is the car’s velocity after covering this distance?

Answers

Answer:

Vf = 25.7 [m/s]

Explanation:

To solve this problem we must use the following kinematics equation:

[tex]v_{f} ^{2}= v_{i} ^{2}-(2*a*x)[/tex]

where:

Vf = final velocity [m/s]

Vi = initial velocity = 30 [m/s]

a = desacceleration = 2 [m/s^2]

x = distance = 60 [m]

Note: the negative sign in the equation means that the car slows down.

Now replacing:

[tex]v_{f}^{2}=(30)^{2}-(2*2*60)\\ v_{f}^{2} = 660\\v_{f} =\sqrt{660} \\v_{f}=25.7[m/s][/tex]

Mr. Chang's class participated in a science experiment where they placed three substances outside in the sunlight to determine which substance would increase in temperature more quickly. How would the motion of the particles of each substance be described if they are allowed to sit in the Sun for a duration of 10 minutes?

Choices:

The particles do not change in motion because the substances are undisturbed.


The particles of each substance begin to speed up and move farther apart as the temperature increases.


The particles of each substance begin to slow down and move closer together as the temperature increases.


The particles of each substance speed up and slow down simultaneously, but remain in a fixed position as the temperature increases

Answers

Answer:

B or D but im pretty sure it is D

Explanation:

When molecules are left in the sun, it heats up. When molecules heat up, the begin to vibrate rapidly. The sun is not constant as it could get blocked by clouds, so it would, at times, slow down the movement of the molecules. The answer is most likely D.

A gust of wind blows an apple from a tree. As the apple falls, the force of gravity on the apple is 9.11 N downward, and the force of the wind on the apple is 1.18 N to the right. What is the magnitude of the net external force on the apple? Answer in units of N. Part 2: What is the direction of the net external force on the apple (measured from the downward vertical, so that the angle to the right of downward is positive)? Answer in units of ◦

Answers

Answer:

The net external force on the apple is 9.18 N and the direction of net force is 82.6°.

Explanation:

Given that,

Force of gravity = 9.11 N

Force of wind = 1.18 N

We need to calculate the net external force on the apple

Using formula of net force

[tex]F'=\sqrt{(9.11)^2+(1.18)^2+2\times1.18\times9.11\cos90}[/tex]

[tex]F'=9.18\ N[/tex]

We need to calculate the direction of net force

Using formula of direction

[tex]\theta=\tan^{-1}(\dfrac{9.11}{1.18})[/tex]

[tex]\theta=82.6^{\circ}[/tex]

Hence, The net external force on the apple is 9.18 N and the direction of net force is 82.6°.

The magnitude of the net external force on the apple is 9.19 N and the direction of the net external force is 82.6⁰.

The given parameters;

weight of the apple, W = 9.11 Nhorizontal force on the apple, F = 1.18 N

The magnitude of the net external force on the apple is calculated as follows;

[tex]F= \sqrt{F_y^2 + F_x^2} \\\\F= \sqrt{9.11^2 + 1.18^2} \\\\F = 9.19 \ N[/tex]

The direction of the net external force on the apple is calculated as follows;

[tex]\theta = tan^{-1}(\frac{F_y}{F_x} )\\\\\theta = tan^{-1}(\frac{9.11}{1.18} )\\\\\theta = 82.6 \ ^0[/tex]

Thus, the magnitude of the net external force on the apple is 9.19 N and the direction of the net external force is 82.6⁰.

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What are the two parts of an atom? the nucleus and the proton coud the neutron and the electron the neutron and the proton cloud the nucleus and the second 00​

Answers

Answer: The Nucleus and the Electrons are the 2 Parts of the atom.

Explanation:

PHYSICS HELP PLEASE ONE QUESTION 10 POINTS:)

Answers

Case 1 has the greatest strength for the push and pull. Option A is correct.

What is force?

The pushes and pulls the body experiences are referred to as force. It can occasionally be used to alter the body's size, shape, and direction.

Mass times acceleration equals force, according to the definition. Newton is its measure.

The force transmitted through a rope, string, or wire as it is tugged by opposing forces is referred to as the tension force.

Energy is drawn equally from both ends by the tension force, which is exerted along the whole length of the wire.

The tension force is acting in the rope causing greater strength for the push and pull.

Hence, option A ia correct.

To learn more about the force refer to the link;

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A ball is thrown horizontally from a 11 m high building with a speed of 9.0 m/s.

How far from the base of the building does the ball hit the ground?
Express the answer using two significant figures.

Answers

Answer:

the answer to you're question is d=9

The convection currents in the asthenosphere cause the movement of the

Answers

Convection currents generated within the asthenosphere push magma upward through volcanic vents and spreading centres to create new crust. Convection currents also stress the lithosphere above, and the cracking that often results manifests as earthquakes.

Which action describes the first step in both scientific investigation and technological design?

researching how solar panels work
identifying a need for a solar panel
communicating to the team that solar panels are easy to install
designing a solution by sketching a prototype for a solar panel

Answers

Answer:

The best answer would be D

Explanation:

This would be best because if you sketch about an object or thing you are making it can help you better picture what you are making or someone else therefore the answer is D

Answer:

Answer is D fs

Explanation:

*designing a solution by sketching a prototype for a solar panel*

HEY CAN ANYONE PLS ANSWER DIS!!!!!!!

Answers

Answer:

A. Filtration

Explanation:

Chromatography can not be used to seperate A(l) from the mixture. And you can not even perform the method since B(s) is present.

As for distillation, this process is used to seperate liquid from mixture of liquids. Filtration is effective in seperation of liquid and solid.

How do you find the surface area of a rectangular object?

Answers

Answer:

A=2(wl+hl+hw)

Explanation:

Hope this helps! :)

An air bubble is at a depth of 3 m below
the surface of lake. What is the pressure
of water on the air bubble?
(take density of water = 1000 kgm )

Answers

Answer:

incorrect its 987 for exact

how long would it take for a car to travel 200 km if it has an average speed of 55 km/hr?​

Answers

Answer:

3.6

Explanation:

Answer:

3.64 hrs

Explanation:

a spring balance used to weigh candy is built with a spring the spring stretches 3.00 cm when a 15 n weight is placed in the pan. when the weight is replaced with 3 kg of candy, what distance will the spring stretch?
a.7.0 b.4.5 c.3.8 d.5.9

Answers

Answer: 5.9cm

Explanation:

15N/3cm=5

Convert 3kg to N (29.42N)

Use the 5 from earlier to divide 29.42/5=5.884

Round to 5.9

5.9cm is the answer

(I don’t know if I solved this the correct way but I got it right. 5.9 is the correct answer)

jayleen has a mass of 35 kg and is riding her bike and experiences a 62 N force as shown. What is the expected magnitude of acceleration for Jayleen?
1.8 m/s²
2170 m/s²
343 m/s²
0 m/s²

Answers

Answer:

The answer is 1.8 m/s²

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

[tex]a = \frac{f}{m} \\ [/tex]

where

m is the mass

f is the force

From the question we have

[tex]a = \frac{62}{35} \\ = 1.7714285...[/tex]

We have the final answer as

1.8 m/s²

Hope this helps you

What collides and creates a movement of heat called conduction?

A. photons

B. compounds

C. Molecules

D. atoms

Answers

Answer:

c.

Explanation:

Molecules collide and create a movement of heat called conduction.

What is conduction?

Conduction is defined as a process  as a means of which heat is transferred from the hotter end of the body to it's cooler end.Heat flows spontaneously from a body which is hot to  a body which is cold.

In the process of conduction,heat flow is within the body and through itself.In solids the conduction of heat is due to the vibrations and collisions of molecules  while in liquids and gases it is due to the random motion of the molecules ,

When conduction takes place, heat is usually transferred from one molecule to another as they are in direct contact with each other.There are 2 types of conduction:1) steady state  conduction 2) transient conduction.According to the type of energy conduction is of three types:

1) heat conduction

2) electrical conduction

3)sound conduction

Learn more about conduction,here:

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If a rock is skipped into a lake at 24 m/s2 with what force as the rock
thrown if it was '1,75 kg?

Answers

Answer:

Force = Mass * Acceleration

Explanation:

24*1.74= 42 N

Which unit you would use to measure the following objects? This is so confusing

Answers

Answer:

weight of truck in kg, height of person in meter m, amount of water in kiloliter kl, length of eyelash in mm

An object that has 0 acceleration will never be in motion

Answers

Answer:

False

Explanation:

Can someone help me please, thanks.

Answers

Answer:

rotation

Explanation:

Im pretty sure. Please heart and mark brainliest

Answer:

cycle

Explanation:

either rotation or cycle. I would think.

What is the velocity of a plane that took 2 hours to travel 1000 miles north?

A. 500 miles per hour North
B. 500 miles
C. 500 miles North
D. 500 miles per hour

Answers

D mid Univisionhdjfjfjfnfjzkakaozkdmxifjfifnfjcifjdnsnsn

Which items are needed for a plant to become fertilized?

egg

pollen

embryo

seed

Answers

The answer is pollen.

Fertilization in flowering plants happens through a process called pollination.
Pollen of course or it could be seed

If you force the magnitude of the vector to stay the same, but increase the vertical component value, what happens to the horizontal component of the vector?

Answers

Answer:

The horizontal component reduces

Explanation:

The magnitude of a vector is found by taking the root of the sum of the squares of the components of the vector

Therefore, when the values of one of the components is increased, while the other components of the vector stay the same, the magnitude of the vector increases

In order  to increase the value of one of the components of a vector and maintain the magnitude of the vector, the values of one or more of the other components must be reduced.

As such when the magnitude of the vector that has only a vertical and a horizontal component is forced to stay the same, and the vertical component is increased, the horizontal component must be reduced.

The increase in vertical component of the vector, causes a decrease in the horizontal component of the vector.

A vector can be represented in vertical and horizontal components.

[tex]V = V_x + V_y[/tex]

where;

[tex]V_x[/tex] is the horizontal component of the vector[tex]V_y[/tex] is the vertical component of the vector

[tex]V = Vsin(\theta) \ + Vcos(90-\theta)[/tex]

From the formula above, as one component vector increases, the other component reduces.

Thus, the increase in vertical component of the vector, causes a decrease in the horizontal component of the vector.

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what are 3 sources of heat inside earth?

Answers

1. Heat from when Earth was formed.

2. Frictional Heat, which is caused by heavier core material sinking to the center of the Earth.

3. Heat from the decay of elements that are radioactive.

Which of the following offers guidance to individuals in various situations of conflict, confusion and crisis by means of providing tools necessary for self-development?

Answers

Answer:

confusion

Explanation:

mark as brainlist plz

all known frequencies of the visible spectrum are..

a. solar light
b. light
c. black light

Answers

Explanation:

[tex]b. \: light[/tex]

13. Which of the following would have NO momentum?
A person running
A table
A moving bus

Answers

Answer:

a table

Explanation:

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