Please help me out with my physics

Please Help Me Out With My Physics

Answers

Answer 1
It’s A. Hope this helps

Related Questions

If you are doing 4 sets of 10 repetitions of air squats you are doing _____ x _____ which equals to _____ air squats

Answers

Answer:

4x10=30

Explanation:

You can easily know it's multiplication when you see the sign. It gives you the number but you have to plug it in. So once you plug in the numbers then you should get either 4x10 or 10x4 which means both is equal to 40

A line graph usually reveals a relationship between which factors

Answers

Answer:

variables on the horizontal and vertical axis (slope, outliers, +/- correlation, etc)

Explanation:

what is the unit of magnetic field​

Answers

Answer:

Hope this helps!~ (Sorry if you get it wrong or I got it wrong-)

Explanation:

The standard SI unit for magnetic field is the Tesla, which can be seen from the magnetic part of the Lorentz force law Fmagnetic = qvB to be composed of (Newton x second)/(Coulomb x meter). A smaller magnetic field unit is the Gauss (1 Tesla = 10,000 Gauss).

~The Confuzzeled homan

does this curved graph show a function explain how you know

Answers

Answer:

No; the graph fails the vertical line test.

The vertical line test is a tool used to determine if we have a function. If we can draw a single straight vertical line through more than one point on the red curve, then the graph is said to have failed the vertical line test. Consequently, this leads to the relation not being a function.

For this circle graph, we can draw a vertical line through more than one point, which is why we don't have a function here.

Put another way, there are inputs (x) that produce more than one output (y), so that's why we don't have a function.

-BBBM

A speeding Thunderbird left skid marks on the road that were 76.7 m long when it came to a stop. If the acceleration of the car was -10 m/s2, how fast was the car initially going?

Answers

Answer: 39.2 m/s

Explanation:

You can use the kinematic equation:

[tex]v_f^2=v_i^2+2a*d[/tex]

We know the final velocity because it says it came to a stop. So now all we gotta do is plug in.

[tex]0^2=v_i^2+2(-10)(76.7)\\v_i^2=1,534\\v_i=\sqrt{1534} \\=39.166 m/s[/tex]

if a runner is moving 2.88m/s directly north and accelerating at .350 m/s^2 at an angle of -52.0. At the point in the motion where she is running directly east what is the displacement

Answers

Answer:

19.1 m, 52.0°

Explanation:

Given:

v₀ₓ = 0 m/s

v₀ᵧ = 2.88 m/s

vᵧ = 0 m/s

aₓ = 0.350 m/s² cos(-52.0°) ≈ 0.215 m/s²

aᵧ = 0.350 m/s² sin(-52.0°) ≈ -0.276 m/s²

Find: Δx and Δy

First, find time.

vᵧ = aᵧt + v₀ᵧ

0 m/s = (-0.276 m/s²) t + 2.88 m/s

t = 10.4 s

Now find the displacement components Δx and Δy.

Δx = v₀ₓ t + ½ aₓ t²

Δx = (0 m/s) (10.4 s) + ½ (0.215 m/s²) (10.4 s)²

Δx = 11.7 m

Δy = v₀ᵧ t + ½ aᵧ t²

Δy = (2.88 m/s) (10.4 s) + ½ (-0.276 m/s²) (10.4 s)²

Δy = 15.0 m

The magnitude of the displacement is:

d² = Δx² + Δy²

d² = (11.7 m)² + (15.0 m)²

d = 19.1 m

The direction of the displacement is:

θ = atan(Δy / Δx)

θ = atan(15.0 m / 11.7 m)

θ = 52.0°

What happens to the temperature of a substance while it is changing state?
A. It increases first and then decreases.
B. It decreases first and then remains constant.
C. It varies randomly.
D. It remains constant.

Answers

Answer:

During a phase change, the temperature will remain constant. Obviously all the heat is used in phase transformation. So the correct answer should be D. Forgive me if I'm wrong but I hope this helps!

The temperature of a substance remains constant while it is changing state. Thus, the correct option is D.

What is the relation between state and temperature of substance?

Temperature has a direct effect on whether a substance exists in states as a solid, liquid, or gaseous substance. Substances can change their phase often because of a temperature change of the substance. At very low temperature conditions, most of the substances are solid, as the temperature of the substance keeps on increasing, then they become liquid and at very higher temperatures still, they become gaseous substances.

The temperature of a substance remains constant while it is changing its state.

Therefore, the correct option is D.

Learn more about Substances here:

https://brainly.com/question/24372098

#SPJ2

help i need step by step awnser​

Answers

Answer:

Gold

Silver

Mixture

Explanation:

Density

The density of an object of mass m and volume V is given by:

[tex]\displaystyle d=\frac{m}{V}[/tex]

We are given the following densities:

Gold: 19.3 gr/cm3

Silver: 10.5 gr/cm3

With the data provided in the table, we can confirm which of the three columns corresponds to gold, silver, or a mix of both.

Calculating the first density: m1=1,930 gr, V1=100 cm3

[tex]\displaystyle d1=\frac{m1}{V1}[/tex]

[tex]\displaystyle d1=\frac{1,930}{100}[/tex]

[tex]d1=19.3\ gr/cm^3[/tex]

This crown is made of gold

Calculating the second density: m2=1,930 gr, V2=184 cm3

[tex]\displaystyle d2=\frac{m2}{V2}[/tex]

[tex]\displaystyle d2=\frac{1,930}{184}[/tex]

[tex]d2\approx 10.5\ gr/cm3[/tex]

This crown is made of silver

Calculating the last density: m3=1,930 gr, V3=150 cm3

[tex]\displaystyle d3=\frac{m3}{V3}[/tex]

[tex]\displaystyle d3=\frac{1,930}{150}[/tex]

[tex]d3\approx 12.9 gr/cm^3[/tex]

Since the value of the density is between gold and silver, this crown is a mixture.

1. There is a group of kids playing tee ball in front of your house. If the bat is 5kg traveling with a velocity
of 8m/s, with what velocity will the 1.5 kg ball travel after it is hit by the bat?

Answers

Answer: tug vi

Explanation:

Because

If the force being applied to an object is doubled, what will happen to its
acceleration?

Answers

Answer:

Acceleration decreases.

Explanation:

Hope this helps you.

energy
Potential energy + Kinetic energy
OA) Heat
OB) Chemical
Electrical
OD) Mechanical

Answers

i think the answer may be D- mechanical
The answer is OD) Mechanical

A weight lifter raises a mass of 50kg through a height of 2m. He does this 25 times in one minute. Find his
average power.

Answers

Answer:

[tex]average power = 416.67 \: W

[/tex]

Explanation:

[tex]are \: you \: sure \: this \: is \: a \: man \: or \: robot?......haha. \\ the \: average \: power \: is \: given \: by : \\ p_{(a.v)} = \frac{w}{t} \: but \: work \: or \: energy \: expanded \: is \: given \: by : \\ w = \: fs = mgs \: \: therfore, \: p_{(a.v)} = \frac{mgs}{t} \\ note \: the \: followng : \\ p_{(a.v)} = average \: power, \\ w = work \: done \: or \: energy \: expanded, \\ f = force \: due \: to \: gravity \: = weight = mg, \\ s = distance = height = 2m \times 25 \: lifts, \: m = mass = 50kg, \\ \: g \: = \: acceleration \: due \: to \: gavity = 10 {m(s)}^{ - 2} and \: t = time = 60s.

\\ so \: what \: now, ok \: lets \: find \: p_{(a.v)} . \\ p_{(a.v)} = \frac{mgs}{t}= \frac{50 \times 10 \times 50}{60} = 416.66666667 \: watts.[/tex]

HELP WHIT PROJECT PLZZ FOR ALL MY POINTS!!!!!!!!!!! X^X

Answers

Answer:

maybe. inv me to slides and I'll try.

Explanation:

can fertilizer grow plants (physics )

Answers

Answer:

A fertilizer or fertiliser is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply one or more plant nutrients essential to the growth of plants. Many sources of fertilizer exist, both natural and industrially produced.

Explanation:

127) A swimmer heading directly across a river that is 200 m wide reaches the opposite bank in
6 min 40 s. During this swim, she is swept downstream 480 m. What is the speed of the
current?
A) 0.50 m/s
B) 0.80 m/s
C) 1.2 m/s
D) 1.4 m/s
E) 1.8 m/s

Answers

Answer:

C

Explanation:




What will be the velocity of a train if it covers the distance of 30m in 3 s?

Answers

Answer:

Soln:

d=30m

t=3s

now:

v=d/t

=30/3

=10

Velocity is distance/time, which is, in this case, 30m/3s = 10 meters per second.

Why is science good for democracy

Answers

Answer:

Equitable education in a healthy democracy includes science and engineering learning for every student. Great science and engineering education engage student so that they develop the knowledge and intellectual dispositions to make sense of the natural and designed worlds.

Explanation:

Two ice skaters on ice push away from each other. What will be the effect of the forces of their pushing each other if their masses are different?

Answers

Answer:If the masses are different, the lighter ice skater will accelerate faster than the ice skater with more mass.

Explanation:

The lighter skater will accelerate more quickly than the heavier skater if there are mass discrepancies.

used an idea?

According to Newton's third law, the action and reaction forces in any force interaction must be equal and moving in the opposite directions. These pressures, nevertheless, affect a variety of items. In this case, each skater will experience the same amount of force, and if any other horizontal forces, such as friction, operating on each skater in the opposite direction from the pushing force are less than the pushing force, each will accelerate in that direction. The two skater system's center of mass will remain where it is if there is little to no friction to prevent the skaters from moving.

To know more about Friction visit-

https://brainly.com/question/13000653

#SPJ2

HELPPPPP
Jermaine runs exactly 2 laps around a 400 meter track.

Find displacement.

Answers

Answer:

0

Explanation:

she runs 2 whole laps around a 400 meter track, but she is always ending up back where she started, therefor there is no displacement.


5. A book is placed on a table. If the book exerts a force of 15 N'on the table,
how much force does the table exert on the book?
A. ON
C. 9.8 N
B. 3 N
D. 15 N​

Answers

Answer:

D

Explanation:

The table is NOT in motion, so it will remain still. Newton's second law states that for every action, there's an equal and opposite reaction. Therefore, the table must push back the opposite direction(up) with the same force(15N)

A car traveling 6.0 m/s is uniformly accelerating at a rate of 3.0 m/s^2 for 15 seconds. What is its final velocity

Answers

Answer:

51m/s^1

Explanation:

v=u+at

v=(6)+(3)(15)

v=51m/s^1

Which of the following is a correct example of the current in a light bulb?
60 Joules
60 Volts
60 Watts
60 Amperes

Answers

Answer:

60 Amperes

Explanation:

current is the main factor, so current is measured in Amperes

You testify as an expert witness in a case involving an accident in which car A slid into the rear of car B, which was stopped at a red light along a road headed down a hill (Fig. 6-25). You find that the slope of the hill is u " 12.03, that the cars were separated by distance d " 24.0 m when the driver of car A put the car into a slide (it lacked any automatic anti-brake-lock system), and that the speed of car A at the onset of braking was v0 " 18.0 m/s.With what speed did car A hit car B if the coefficient of kinetic friction was (a) 0.60 (dry road surface) and (b) 0.10 (road surface covered with wet leaves)

Answers

Answer:

A) 12.08 m/s

B) 19.39 m/s

Explanation:

A) Down the hill, we will apply Newton’s second law of motion in the downward direction to get:

mg(sinθ) – F_k = ma

Where; F_k is frictional force due to kinetic friction given by the formula;

F_k = (μ_k) × F_n

F_n is normal force given by mgcosθ

Thus;

F_k = μ_k(mg cosθ)

We now have;

mg(sinθ) – μ_k(mg cosθ) = ma

Dividing through by m to get;

g(sinθ) – μ_k(g cosθ) = a

a = 9.8(sin 12.03) - 0.6(9.8 × cos 12.03)

a = -3.71 m/s²

We are told that distance d = 24.0 m and v_o = 18 m/s

Using newton's 3rd equation of motion, we have;

v = √(v_o² + 2ad)

v = √(18² + (2 × -3.71 × 24))

v = 12.08 m/s

B) Now, μ_k = 0.10

Thus;

a = 9.8(sin 12.03) - 0.1(9.8 × cos 12.03)

a = 1.08 m/s²

Using newton's 3rd equation of motion, we have;

v = √(v_o + 2ad)

v = √(18² + (2 × 1.08 × 24))

v = 19.39 m/s

4. Cliff divers at Acapulco jump into the sea from a cliff 36.0m high. At the level of the sea, a rock sticks out a horizontal distance of 6.00m. With what minimum horizontal velocity must the cliff divers leave the top of the cliff if they are to miss the rock?​

Answers

Answer: 5.5

Explanation: its simply different from the others

Which particle is used as a beam to treat cancer? electron neutron proton

Answers

Answer:neutron

Explanation:

Because it is similar to the motor neurons

Answer:

Proton

Explanation:

Proton therapy, also called proton beam therapy, is a type of radiation therapy. It uses protons rather than x-rays to treat cancer. A proton is a positively charged particle. At high energy, protons can destroy cancer cells.

An electric current of 0.75 A passes through a circuit that has a resistance of 175 12. According to Ohm's law, what is the voltage of the circuit? O A. 176 V O B. 0.004 V O C. 233 V O D. 131 V​

Answers

Answer:

15.34 i think

Explanation:

The anther and filament are parts of a flower's:

stamen

petal

pistil

stigma

Answers

A the stamen :)). haha yea smert

Students raced each other in the gym while the teacher recorded each student's speed. Jeremy ran 14 miles per hour, Isaiah ran 10 miles per hour, Jonah ran 13 miles per hour, and Alexis ran 16 miles per hour. Which of the bar graphs should the teacher use to compare the students' speeds? (pictures re the choices)

Answers

I think the third one is the correct answer. If you look at the other graphs, the numbers do not match up with the information given. Hope this helps!

In a gym the students raced with each other and teacher is recording everyone's speed than the second graph is representing correctly.

What is a graph?

A graph is a visual depiction of statistical data or a logical relationship between variables. Graphs serve a predictive purpose because they have the virtue of displaying broad trends in the mathematical behavior of data. However, as just approximations, they may be incorrect and occasionally deceptive.

Most graphs have two axes, with the axis denoting a set of independent variables and the vertical axis denoting a set of dependent variables. The most typical graph is indeed a broken-line chart, where the regression coefficient is typically a factor of duration.

In the second graph the speed of every student is represented accurately, therefore the second graph is correct.

To know more about Graph :

https://brainly.com/question/17267403

#SPJ2

A car decelerates uniformly from 24 m/s to 18 m/s in 3.0 seconds. How far does it travel during this time?

Answers

Distance = area under the graph
Using the trapezium rule, Area = 1/2 x (24+18) x 3 = 21 x 3 = 63m

Distance travelled will be = 63 m

What is equation of motion?

These are the equations that describe the behavior of a physical system in terms of its motion as a function of time .

Given : u = 24 m/s

           v= 18 m/s

           t = 3sec

using equation of motion : v = u + at

                         18 = 24 + a*3

                         -6 = 3a

                          a = -2 m/s^2

using equation of motion : s =  u t + 1/2 a (t^2)

                           s = 24 * 3 + 1/2 * (-2)(9)

                          s = 63 m

Learn more about equation of motion:

https://brainly.com/question/16355111?referrer=searchResults

#SPJ2

During a spacewalks an astronaut lets go of a tool, causing it to float away and bounce off the side of the space shuttle. The astronaut saw
the the tool hit the shuttle but did not hear it hit the shuttle. Why would the astronaut be able to see the tool hit the shuttle but not hear it
hit the shuttle?
FISH

Answers

Answer:

In space noone can hear you scream.....

Explanation:

There is no sound in space. Sound, like light or heat, is a wave. However, one major distinction is that, unlike light or heat (radiation), sound needs a medium to travel. Sounds require the presence of molecules or particles to travel from one region to another.

Other Questions
f(x)=-3x^2-6xFind f(9) Hank wants to add a row of tile to his kitchen wall. The space is 5.75 feet long. He plans to put a \frac {3}{4} 4 3 foot yellow tile in the center. He'll fill the rest of the space with blue tiles that are 3 inches long. How many 3-inch blue tiles will he need? Where the red dot Located and explain please judy asked sarah to help her edit the following paragraph. identify the correct example of EDITINGTony and Mark decided to open a coffe shop on the corner of elm Street and 8th Avenue. Much to their shock, in the first week Tony and Mark made no sales and begin to worry if their business endeavor was a smart one With $10,000 dollars from the bank the two men purchase all the supplies needed to begin their first week. After a little advertisng and free samples, the shop is doing much better.A sarah corrects the spelling of the word advertising in the last sentenceB Sarah informs Judy that the essay is not organized properlyC Sarah suggests to Judy that she have a solid thesis statement D Sarah suggests to Judy that the paragraph should be coherent* i typed everything word for word hence the spelling mistakespls answer asap i will give u a kiss on the head -2 2/3 - (- 1/3) =....... 5. A book is placed on a table. If the book exerts a force of 15 N'on the table,how much force does the table exert on the book?A. ONC. 9.8 NB. 3 ND. 15 N The structure in the cell/plasma membrane that handles Facilitated Diffusion and Active Transport is built of amino acids in the Ribosomes. What is thisMacromolecule?Nucleic AcidLipidProteinCarbohydrate I've been helping y'all since 12 am plz help me what causes archillies wrath in the iliad? How is being responsible like a bridge? What does the directors concept help all members of the production staff to do everyday What are the opposites of 7, 4.5, 3.35, and 7 1 2 20 POINTS AND MARK BRAINLEST Drama Quarter 1 Assessment Audition Blocking Cross Counter-Cross Down StageExternalization Fourth Wall Full Front Full Back Illusion of first timeImprovise Monologue Profile Quarter-Turn /Three-Quarter Turn Select the term from the Word Bank for each scenario below. 1. Cinderella demonstrated the angry emotions that the smell of pine cleaner brings to her mind.2. Anna is in this position when she turns at the sound of a car crash upstage right, the audience could just barely see the sadness in her face. 3. The happy couple danced the Waltz which is a dance that has twirls and turns, during that scene the characters are sometimes in this position.4.Laura and Cindys positions allowed the audience that Laura whispered something shocking into Cindys ear, because they could see her wide eyes and jaw-drop.5. James yells out toward the audience for his son to come into the house, through the imaginary window downstage center.6. When characters in conversation stand face-to-face, the audience cannot see their full emotion, so they have to focus on the words. 7. Jacob prepared for his role so well, that he continued talking like his character after he left the auditorium.8. Rachel sneaks across the upstage from the bedroom to the front door as her parents argue downstage.9. Janines confession of the guilt, about betraying her best friend, left the audience members in tears.10. Benjamin and Tracy performed a perfect goodbye scene when he goes stage right to the kitchen, and she goes stage left to the door.11. Stacy slowly backed away from the intruder who came in upstage left, the audience could not see the fear in her face, but they saw the caution in her walk.12. In order to make sure the audience could hear her reading the letter, Karens character slowly walks to this position on stage.13. Ray forgot his lines in Act 2, scene 3, but he knew the situation so well he was able to make it up and no one ever noticed.14. Actors who practice emotion and expression often are able to impress the audience every performance.15. An actor playing a driver is often told to bow and take his hat off as a lady enters his car. When an outbreak occurs, label the contaminants or suspect food with a notice what does universal currency mean? *extra points The airport has a new plane that can go from 0 miles per hour to 100 miles per hour in 10 seconds. What is being described about the new plane?a. accelerationb. speedc. velocityd. magnitude whats the answer to number 4?please and thank you Does anyone know 1,2,3,4,5,6? i must be present in a compound for it considered organic