Calculate the acceleration of the two masses shown in the picture above.
A. 0.77 m/s^2
B. 3.92 m/s^2
C. 8.62 m/s^2
D. 5.91 m/s^2

Calculate The Acceleration Of The Two Masses Shown In The Picture Above.A. 0.77 M/s^2B. 3.92 M/s^2C.

Answers

Answer 1

Hello!

We can begin by summing the forces acting on each mass. (Tension is CONSTANT because the string is both frictionless and massless).

On the 3 kg block: (Ignore forces acting in the vertical direction since there is no motion in that axis)

∑F = -M₁gsinФ + T

On the 8 kg block:

∑F = -T + M₂g

Sum the forces:

∑F = -M₁gsinФ + T -T + M₂g

∑F = -M₁gsinФ + M₂g

Divide by both masses to get the acceleration:

[tex]a = \frac{-M_1gsinФ + M_2g}{m_1+m_2}[/tex]

Plug in values: (g = 10m/s²)

[tex]a = \frac{-(3)(10)(sin30)+8(10)}{3+8} = 5.91 m/s^2[/tex]


Related Questions

if the distance is 207m what is the time

Answers

Answer:

That depends on your average speed and the number of stops you make. However, assuming you could average 55 miles per hour for the entire distance, your total driving time would be about 3 hours and 45 minutes.

What is the acceleration of a Ford Mustang GT that can go from 0.00 to 27.8
m/s in 5.15 seconds?

Answers

Finding acceleration= final speed-initial speed/time taken (or A=V-U\T)

Finial speed= 27.8s
Initial speed= 0s
Time taken= 5.15

So..

27.8-0/5.15= 5.40m/s (rounded to two decimal places)

What is a common disease caused by a fungus?
A.
common cold
B.
HIV/AIDs
C.
athlete's foot
D.
pneumonia

Answers

the answer is c. athletes foot

If a 2kg block of copper is heated and a temperature increase of 50C is measured, how much energy has been provided?

Answers

Explanation:

Given : S=400Jkg

−1

C

−1

and L

f

=3.5×10

5

Jkg

−1

Mass of copper block m=2kg

Heat released by the copper block is equal to the heat gained by the ice to melt.

Let the mass of the ice melted be M.

Change in temperature of copper block ΔT=500−0=500

o

C

∴ mS(ΔT)=ML

f

Or 2×400×500=M×3.5×10

5

⟹ M=1.14kg

hope it help u

We have that If a 2kg block of copper is heated and a temperature increase of 50C is measured,the energy has been provided is

E=418KJ

From the question we are told

If a 2kg block of copper is heated and a temperature increase of 50C is measured, how much energy has been provided?

Generally the equation for the Energy  is mathematically given as

[tex]E=mC(T_1-T_2)\\\\E=2*4180(50)\\\\E=418000J\\\\E=418KJ[/tex]

Therefore

If a 2kg block of copper is heated and a temperature increase of 50C is measured,the energy has been provided is

E=418KJ

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I need the right answer ASAP NO LINKS!!!

Answers

The first one!

Hope this helps pls mark as brainliest :)

Answer:

Models change to accommodate new discoveries.

Explanation:

Scientific models are based on current scientific knowledge. This means that when new discoveries are made they are subject to change.

A car accelerates uniformly in a straight
line from rest at the rate of 3.3 m/s^2
What is the speed of the car after it has
traveled 60 m?
h
Answer in units of m/s.

how Long does it take the car to travel 60m?
answer in units of s

Answers

Answer: see below

Explanation:

The intial speed is u=0[tex]\frac{m}{s}[/tex]

The acceleration is a= 3.3[tex]\frac{m}{s}^2[/tex]

The distance is s=60m

Apply the equation of motion

[tex]v^{2}[/tex]=[tex]u^{2}[/tex]+2as

So,

[tex]v^{2}[/tex]=0+2*3.3*60=396

v=[tex]\sqrt{396}[/tex] = 19.89 m/s ≈20 m/s

Applying the equation of motion

v=u+at

t= [tex]\frac{v-u}{a}[/tex] =[tex]\frac{19.89-0}{3.3}[/tex] = 6.02seconds

im confused on number two can u help me through it

Answers

Hi there!

We can solve this in two ways, using the Work-Energy theorem or kinematics.

Work-Energy:

We know that:

Ei = Ef, as long as there are no external forces working on the system.

Thus:

Ei = PE = mgh

Ef = KE = 1/2mv²

Therefore:

mgh = 1/2mv²

We can cancel out the mass:

gh = 1/2v²

9.8(10) = 1/2v²

√196 = v = 14 m/s

We can also solve using kinematics, using the equation:

vf² = vi² + 2ad

From rest (vi = 0 m/s) and a = g, so:

vf² = 2gd

vf = √2gh

vf = √(2 × 9.8 × 10) = 14 m/s

how the x ray use the behavior and characteristics of the electromagnetic wave to function.

Answers

Answer:

How do X rays use electromagnetic waves to function?

X-rays are very high-frequency waves and carry a lot of energy. They will pass through most substances, making them useful in medicine and industry to see inside things. An X-ray machine works by firing a beam of electrons at a "target." If we fire the electrons with enough energy, X-rays will be produced.

Explanation:

what kind of role can you play in your family and locality in terms of population education awareness​

Answers

Answer:

I can suggest them by making different program about it and I will tell them the importance of less and productive population . Also tell them bad consensus of over population. I also give the technique of stopping over population.

A toy car is pushed off a 1.2 meter tall table and lands 3 meters from the base of the table.
A. What was the initial horizontal velocity of the toy car?
B. How long did it take the toy car to hit the ground?

Answers

ANSWER:

A. 1.2 METERB. IT WILL LAND IN 3 METERS.

__________________

HOPE IT HELPS YOU

CAN YOU BRAINLEST ME

Answer:

w

Explanation:

w

PLZZZZZZ Help Due tmr

Answers

Well that’s very hard

what is the point value for scoring in handball

Answers

Answer:

one point

Explanation: trust me :)

anyone would like to help?

Answers

1. Yes. They are located and distributed around the earth (not randomly though)

2. No. They are usually located in distinct zones relating to tectonic plates

3. Yes. They are mostly in the region where plate boundaries are found.

4. Yes.

5. No. They are connected to plate tectonic theory of divergent, convergent, and transform plate boundaries.

6. Yes.

7. No. They are located in various regions around the world.

8. Yes. Divergent and convergent plate boundaries are likely to produce volcanoes.

9. Yes.

10. No. Mountain ranges are formed when continents collide. These collisions can produce earthquakes, and many of these mountain ranges include volcanoes.

A 0.12 kg object makes an elastic head-on collision with a 0.18 kg stationary object. The final velocity of the 0.12 kg object after the collision is 0.048 m/s in the direction opposite its initial movement. The final velocity of the 0.18 kg object after the collision is 0.19 m/s in the same direction as the object which strikes it. What was the initial velocity of the 0.12 kg object?

Answers

Answer:

0.12kg / 0.19

Explanation:

Becase the volcity reuded

The final velocity of the 0.18 kg object after the collision is 0.19 m/s in the same direction as the object which strikes it, then the initial velocity of the 0.12 kg object would be 0.237 m / s .

What is momentum?

It can be defined as the product of the mass and the speed of the particle, it represents the combined effect of mass and the speed of any particle, and the momentum of any particle is expressed in Kg m/s unit.

As given in the problem, a 0.12 kg object makes an elastic head-on collision with a 0.18 kg stationary object. The final velocity of the 0.12 kg object after the collision is 0.048 m/s in the direction opposite its initial movement. The final velocity of the 0.18 kg object after the collision is 0.19 m/s in the same direction as the object which strikes it.

By using the conservation of the momentum,

v × 0.12 + 0 × 0.18 = ( - 0.048)× 0.12 + 0.19 × 0.18

v = 0.237 m / s

Thus, the initial velocity of the 0.12 kg object would be 0.237 m / s .

To learn more about momentum from here, refer to the link given below ;

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Answer this question fast please i will mark you brainliest​

Answers

Answer:

respuesta d)

Explanation:

Answer:

b) 72 F°

Explanation:

In Fahrenheit, the difference between freezing and boiling is 180 F° (that’s 212 °F minus 32 °F). In Celsius, the difference is 100 C° (by definition of 0 °C and 100 °C for those two points). So 100 C° = 180 F°; dividing by 100 gives us 1 C° = 1.8 F°.

So a difference of 40 C° is equal to 40 times (1.8 F°) = 72 F°.

Notice I am using °F and °C for actual temperatures, and F° and C° for temperature DIFFERENCES.

Please help I'll mark brainliest

Answers

Answer:

B. 5Ω

Explanation:

Equivalent resistance between point P and Q

= 3Ω + Tp

Total Parallel resistance, Tp

[tex] \frac{1}{Tp} = \frac{1}{12Ω} + \frac{1}{6Ω} + \frac{1}{4Ω} [/tex]

[tex]\frac{1}{Tp} = \frac{1}{12Ω} + \frac{2}{12Ω} + \frac{3}{12Ω} [/tex]

[tex]\frac{1}{Tp} = \frac{6}{12Ω}[/tex]

[tex]6(Tp) = 12Ω[/tex]

[tex]Tp = \frac{12Ω}{6} [/tex]

[tex]Tp = 2Ω[/tex]

Equivalent resistance between point P and Q

= 3Ω + 2Ω

= 5Ω

Hai hạt bụi trong không khí cách nhau 3cm mỗi hạt mang điện tích -9,6.10 mũ -13C. A )Tính lực đẩy tĩnh điện giữa hai hạt
B ) tính số electrong dư trong mỗi hạt bụi biết diện tích củ mỗi electrong -1,6.10 mũ -19C

Answers

Answer:b

Explanation:

Từ độ cao 100 m người ta thả một vật thẳng đứng xuống với v = 10 m/s, g = 10 m/s2 . a. Sau bao lâu vật chạm đất. b. Tính vận tốc của vật lúc vừa chạm đất.

Answers

Answer:

10 points dapat yawa aman daw gud

Câu 1. Một ôtô đang chạy với vận tốc 54km/h thì tài xế hãm phanh, sau 10 giây tốc độ của ôtô là 36km/h.

a) Tìm gia tốc của ôtô?

b) Tìm quãng đường ôtô đi được trong thời gian hãm phanh?

c) Tinh vận tốc của ôtô sau 16 giây kể từ lúc hãm phanh?

Câu 2. Từ độ cao 80m so với mặt đất, thả một vật rơi tự do. Lấy g = 10 m/s2

a) Tính thời gian vật rơi?

b) Tính vận tốc của vật khi chạm đất?

Câu 3. Một vật có khối lượng 500g đang nằm yên, chịu tác dụng một lục 1,2 N, vật chuyển động nhanh dần

đều.

a) Tìm gia tốc của vật?

b) Tìm quãng đường mà vật đi được sau 1 phút?

c) Tính vật tốc của vật sau 30s kể từ lúc bắt đầu chuyển động ?

d) Sau bao lâu kể từ lúc bắt đầu chuyển động, vật có vận tốc 72km/h?

State whether these questions are true or false.

Q1) Distance formula is displacement/time T/F?
Q2)velocity formula is = displacement/time T/F?

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The given statements are :

Q1) Distance formula is displacement/time T/F?

- False

Q2)velocity formula is = displacement/time T/F?

- True

hai điện tích điểm bằng nhau có độ lớn 6.10^-8C đặt cách nhau một khoảng là r trong dầu hỏa có hằng số điện môi E=2,1. Lực tương tác tĩnh điện giữa chúng laf3,85.10^-4. tìm r

Answers

Answer:

hai điện tích điểm bằng nhau có độ lớn 6.10^-8C đặt cách nhau một khoảng là r trong dầu hỏa có hằng số điện môi E=2,1. Lực tương tác tĩnh điện giữa chúng laf3,85.10^-4. tìm r

Time
This graph shows the results of an experiment where a rubber ball was dropped and the kinetic energy and the potential energy
were tracked. We know that energy can neither be created nor destroyed, only changed in its form. If the blue line shows kinetic
energy and the red line shows potential energy, what can you infer about the relationship between potential and kinetic energy in.
a bouncing ball? Select ALL that apply.
A)
The total amount of energy is always constant.
B)
When potential energy is its highest, kinetic energy is its lowest.
There is a direct relationship between potential and kinetic energy.
D)
When potential energy is its highest, kinetic energy is its highest.
E)
There is an inverse relationship between potential and kinetic energy.

Answers

Answer:

A) B) and E)

Explanation:

NEED HELP!!!! 11 POINTS!!!

Mia plays soccer for her high school team. Generally, they start practice by stretching. What kind of stretching should they do before they are warmed up?
A.
ballistic stretching
B.
dynamic stretching
C.
flexibility stretching
D.
static-active stretching

PLEASE NO LINKS

Answers

Answer: Dynamic stretching

Explanation: dynamic stretching is the most ideal way to stretch when warming up becauses it uses the force production of the muscles and momentum during various activities to take the joints through their full, available range of motion, better preparing them for a resistance

The kind of stretching they should do before they are warmed up is dynamic stretching.

What does dynamic stretching mean?

A dynamic stretch is a movement-based type of stretch. It uses the muscle itself to induce stretching. It differs from traditional "static" stretches because the stretch position is not preserved.

Extend your left foot backward, bend your right foot forward and bend it, and rotate left and right to raise your arms to the sky. Or why not stand and add another kind of gentle twist.

Dynamic stretches are based on movement, while static stretches move the joints as much as possible and hold them for a period of time (usually 30-90 seconds).

Learn more about dynamic stretching here: https://brainly.com/question/1484910

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whats the kinetic energy please help me ive been stuck for a while

Answers

Answer:

k=1/2mv²

Explanation:

k is the kinetic energy

m is mass

and v is velocity/speed

How am i supposed to know if i should use sin/cos/tan when i have 2 unknowns? ​

Answers

Answer:

a=6.71cm and b= 9.948cm

Explanation:

[tex]\frac{a}{h} = sin(\alpha )\\a=hsin(\alpha )\\\\\\\frac{b}{h} =cos(\alpha )\\b=hcos(\alpha )\\[/tex]

which alpha is 34°

A truck pulls a trailer on a flat stretch of road. The forces acting on the trailer are
the force due to gravity (250 000 N downward), the force exerted by the road
(250 000 N upward), and the force exerted by the cable connecting the wailer to
the truck (20 000 N to the right). The forces acting on the truck are the force due to
gravity (80 000 N downward), the force exerted by the road (80 000 N upward), the
force exerted by the cable (20 000 N to the left), and the force causing the truck to
move forward (26 400 N to the right).

Answers

The net vertical force on the trailer is 0, while the net horizontal force on the trailer is 20,000 N to the right.

The net vertical force on the truck is 0, while the net horizontal force on the truck is 6,400 N to the right.

The given parameters;

the trailer:

force on the trailer due to gravity, Fg = 250,000normal force on the trailer due to the road, N = 250,000 Nhorizontal force on the trailer, Fx = 20,000 N to the right

the truck:

force on the truck due to gravity, Fg = 80,000 Nnormal force on the truck due to the road, N = 80,000 Nleft horizontal force on the truck, Fx = 20,000 Nright horizontal force on the truck, Fx = 26,400 N

The net force on each vehicle is calculated as follows;

for the trailer:

Net vertical force is calculated as;

[tex]\Sigma F_y = 250, 000 \ N - 250,000 \ N = 0[/tex]

Net horizontal force is calculated as;

[tex]\Sigma F_x = 20,000 \ N[/tex]

for the truck;

Net vertical force is calculated as;

[tex]\Sigma F_y =80,000 \ N - \ 80,000 \ N = 0[/tex]

Net horizontal force is calculated as;

[tex]\Sigma F_x = 26,400 \ N - \ 20,000 \ N = 6,400 \ N \ to \ the \ right[/tex]

"Your question is not complete, it seems to be missing the following information;"

find the net force on each vehicle.

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I want you to.......
Explain the Michelson-Morley experiment.

And please explain the equations.

Please ☺️❤️​

Answers

Answer:

Michelson reasoned that, if the speed of light were constant with respect to the proposed ether through which Earth was moving, that motion could be detected by comparing the speed of light in the direction of Earth's motion and the speed of light at right angles to Earth's motion.

Help asap please thank you

Answers

Answer:

the answer its time

v = d/t

Answer:distance

Explanation:

How did the river cause the canyon to form?
Answer options with 4 options
A.
The motion of water compacted soil until it became sedimentary rock.
B.
The motion of water wore away and transported rock away from the area.
C.
The motion of water prevented rock layers from forming beneath the water.
D.
The motion of water prevented plants and animals from forming the land in the river bed.

Answers

Answer:

A

Explanation:

because the water carRies but also compacts

If Ms. Ramirez drops a watermelon from the top of the second-floor fire escape outside her room, and it takes 1.5 seconds to hit the ground, calculate the velocity of the watermelon as it hits the ground.

Answers

The velocity of the watermelon as it hits the ground is 14.715 m/s.

Given the data in the question;

Since the Watermelon was dropped from rest,

Initial velocity of the Watermelon;[tex]u = 0m/s[/tex]Time taken for the Watermelon to hit the ground; [tex]t = 1.5s[/tex]We know that, Acceleration due to gravity; [tex]g = 9.81 m/s^2[/tex]

Now, we determine the velocity of the watermelon as it hits the ground which is the final velocity.

From the First Equation of Motion:

[tex]v = u + at[/tex]

Now, under gravity, acceleration ''a" will Acceleration due to gravity;[tex]g = 9.81m/s^2[/tex], "v" is the final velocity, "u" is the initial velocity and "t" is the time taken.

So, we substitute our values into the equation

[tex]v = 0m/s\ +\ ( 9.81m/s^2\ * 1.5s )\\\\v = ( 9.81m/s^2\ * 1.5s )\\\\v = 14.715 m/s[/tex]

Therefore, the velocity of the watermelon as it hits the ground is 14.715 m/s

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An inductor is connected to a 24volts , 50 Hz main supply . If the current through the inductor is 1.5A , calculate the inductance of the inductor. ( Take π = 22/7 )​

Answers

Explanation:

Correct Answer: Option D

Explanation

X L=V/I=24/1.5=16Ω

L = XL/2πf=16/2π50

= 0.05H

hope this helps you.

Answer:

Hello There!!

Explanation:

I believe the answer is=>5.1 x 10-2H

Here's the explanation:↬

•XL= V/I= 24/1.5= 16Ω

•L= XL/2πf= 16/2π50

So the answer is 0.05H.

hope this helps,have a great day!!

~Pinky~

Other Questions
La Maison de mes Rves / My Dream House:Create your dream house and label each room in FrenchGive your house a name in French, like chez Jerome of Le ParadisPrepare a presentation / sales pitch about your house in FrenchWork Days on dream house and sales pitch: ____________________________Sales / Purchase Days: ______________________________________________One half of the class will be salespeople and give their sales pitch to the potentialbuyers from the other half of the class. The sales period will last approximately 15minutes. Customers will look at the homes for sale, listen to the sales pitches and ask questions they have, in French, of course! Customers will choose one house they wish to purchase. They will write the name of the home and its architect on a ballot and turn it in. Any house purchased will earn 3 extra points for the architect who designed it.Then salespeople and customers will switch roles, and the sales process will take place once again. Customers will receive a ballot to purchase the one house of their dreams.Grading:Complete house plan with rooms labeled in French + sales pitch in French: 36 points.Sales pitch and conversations w/customers people in French: 24 pointsYou will need to write a script to sell your house. Include the following.1. Describe the various rooms, and outdoor parts of the house. Use adjectives tomake them seem appealing, e.g. une grande piscine et une petite fontaine.2. Talk about the community. Is your house near a park, a museum, a school? Whyis that good (what can you do there?)3. Be persuasive. Include lots of details and a variety of words.4. Talk for at least 3 minutes. (25 sentences minimum)5. Answer questions about your house.Youll need to turn your script in at the end of the project.You need to rehearse SERIOUSLY to do a good job with this project.House Project RubricDescribes house in detail, with adjectives and location prepositions6 5 4 3 2 1Describes surroundings6 5 4 3 2 1Uses a variety of vocabulary and structures6 5 4 3 2 1House plan is labeled correctly in French, with extra details6 5 4 3 2 1Includes at least 25 sentences6 5 4 3 2 1Shows effort to go beyond the minimum6 5 4 3 2 1 ______/ 36SPEAKING PORTION6 = SOUNDS POLISHED, REHEARSED, GOOD PRONUNCIATION, DOESNT READ5-4= COMPETENT, GOOD PRONUNCIATION, READS SOMETIMES3 = COMMUNICATES MAIN IDEAS, READS, OCCASIONAL PAUSES, SOMETIMESUNCLEAR2 = COMMUNICATES SOME IDEAS1 = COMMUNICATES VERY LITTLE, USES ENGLISH ______ /24 If 5 (m-3)-4(m-2) =0 then m is?? Pls i need this ans really fast Evaluate this statement: "The Bible is not an accurate record of historical events." provide examples to support your evaluation. 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