Answer:
Centripetal acceleration = 46.26m/s2
Tension = 4.6N
Explanation:
Centripetal acceleration is given by the following formula: [tex]a_c = \frac{v^2}{r}[/tex]
So, to calculate acceleration we first need velocity and radius.
The radius is given to us as 75cm = 0.75m, and we can find velocity from the following formula:[tex]v=r\omega[/tex] where w = the angular velocity given by: [tex]\omega = \frac{2\pi}{T}[/tex]
We are given a period of 0.80s, meaning that our angular velocity is:
[tex]\frac{2\pi}{0.80} = 7.85 rad s^{-1}[/tex]
Now we just need to multiply is by the radius to find the velocity:
[tex]0.75*7.85=5.89ms^{-1}[/tex]
Finally we square the velocity and divide by the radius to find the final centripetal acceleration: [tex]\frac{5.89^{2} }{0.75} =46.26ms^{-2}[/tex]
[tex]F=\frac{mv^{2} }{r}[/tex] so we just need to multiply the centripetal acceleration by mass to get the tension force of the string: [tex]46.26*0.1 = 4.6N[/tex]
Hope this helped!
Which layer is the igneous rock type?
options:
A
B
C
D
The position-time graph for two drivers (A and B) are shown in the figure below. Which of the following statements is correct?
a. The two drivers are for sure moving in parallel directions
b. Driver B is moving faster than driver A.
c. Driver A is moving faster than driver B.
d. The two drivers are moving at the same speed
Answer:
A
Explanation:
the acceleration due to gravity is caused by a field force. TRUE OR FALSE?
Answer:
I think it's true,,
Explanation:
maybeee truee
Calculate the potential difference across a 25-Ohm. resistor if a 0.3-A current is flowing through it.
Answer:
I=0.3 A
R=25 Ohm
V=?
V=IR
0.3X25=7.5
Answer:
7.5 V
Explanation:
current × resistance = voltage
©
Question 4 of 5
Which pair of objects would repel each other?
O A. A positively charged particle and a neutral particle
OB. A negatively charged particle and a neutral particle
O C. Two positively charged particles
OD. A positively charged particle and a negatively charged particle
Answer:
Two positively charged particles
Explanation:
I said two positively charged particles because if I say c or d what ever it is for you guy it can be wrong so just pick the one that says Two positively charged particles
Answer: C Two positively charged particles.
Explanation:
just trust me on it, i've done the same quiz.
A car was traveling on a straight road at a constant speed of 50 kilometers per hour. Over the next two minutes, the car came to travel 80 kilometers an hour. Which of the following is true?
The acceleration of the car over the 2 minutes is 0.07 m/s².
Acceleration of the car
The acceleration of an object is the rate of change of velocity of the object with time.
Acceleration of the car over the 2 minutesThe acceleration of the car over the 2 minutes is calculated as follows;
a = Δv/t
a = (v - u) / t
where;
v is the final velocity = 80 km/h = 22.22 m/su is the initial velocity = 50 km/h = 13.89 m/st is the time of motion, = 2 mins = 120 sa = (22.22 - 13.89) / 120
a = 0.07 m/s²
Thus, the acceleration of the car over the 2 minutes is 0.07 m/s².
Learn more about acceleration here: https://brainly.com/question/14344386
How are electrical energy, thermal energy, and mechanical energy related?
Answer:
motion of molecules
Explanation:
I believe that is true
Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation:
(
)Zn + (
)HCl → (
)ZnCl2 + (
)H2
Answer:
Given equation
[tex]\\ \sf\longmapsto Zn+HCl\longrightarrow ZnCl_2+H_2[/tex]
Balanced equation
[tex]\\ \sf\longmapsto Zn+2HCl=ZnCl_2+H_2[/tex]
Reactant side:-
Zn=1Cl=2H=2Product side:-
Zn=1Cl=2H=2Hence balanced
Answer:
1 2 1 1
Explanation:
Which statement identifies the chemical property of iron that results in the formation of rust?
A. It is nonflammable.
B. It reacts with oxygen to form a new substance.
C. It has a very high melting point.
D. It conducts electricity.
Answer:
B, It reacts with oxygen to form a new substance
Explanation:
B
H is a chemical (blank) and H2 is a chemical (blank)
Please I need help!
Answer:
"H" is a chemical symbol and "H2" is chemical formula.
Which type of electromagnetic radiation is useful in communications technology?
A. X-rays
B. visible light
C. radio waves
D. ultraviolet radiation
Convert 9/4 hours into minutes
Am guessing;
9/4 × 60/1 =135
The lithosphere is a rigid layer made of Earth's entire crust and the very top part of Earth's mantle. This rigid layer is divided into several large pieces, or plates. The lithospheric plates float on top of the _______, which is a weak part of the mantle that flows slowly.
Answer:
dxfgjcfygu.h
Explanation:
so sorrymcgvlg;uh'ijuoi'ogf;yulcfxkchgvjhgijuiu
y'i;fyltkxfgchghui
uy8't;fultdyk
How does the force block A exerts on block B compare to the force block B exerts on block A?
Draw and label a force diagram for each block, using equality marks on the vectors.
By Newton's third law, we will see that the force that block A exerts on block B is equal in magnitude but in opposite direction than the force that block B exerts on block A.
Remember that Newton's third law says that whenever two objects interact, they exert equal and opposite forces on each other.
The force that block B exerts on block A is equal to block B's weight, which is:
[tex]W_b = 0.05kg*9.8m/s^2 = 0.49 N[/tex]
Then the force that block A exerts on block B is equal in magnitude but in opposite direction, thus it will be equal to:
F' = -0.49N
Then the diagram is the one that you can see below.
If you want to learn more, you can read:
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When might people use data tables and graphs in their everyday lives? How are these uses similar to and different from the way in which scientists use these same tools?
Do you think scientists need data tables and graphs to do their work?
Which fields of science do you think might use data tables and graphs more than others?
Answer:
hahaha bisa aja ente gan di download di sini adalah salah satu
If the volume of the gas increases from 600 to 800 in. 3, by how much does the pressure change?.
Answer: decreases by 7.5
Explanation:
the average speed of a runner in a 483. meter race is 3.0 meters per second. How long me runner to complete the race? Dont include units, round nearest whole number.
Answer:
161
Explanation:
[tex]v=\frac{d}{t}[/tex] slove for t
[tex]t=\frac{d}{v}[/tex]
Insert values of d and v
[tex]t=\frac{483}{3} \\[/tex]
t=161
Do Small objects exert no gravitational force ? True or false
Answer:
False -
F = G M1 M2 / R^2
So F depends on M1 and M2 and as long either is not zero there will be a gravitational force between them.
What is Flexibility ?
=> Flexibility is the ability of a joint or series of joints to move through an unrestricted, pain free range of motion.
Please help me thank you
Fr+Cl=FeCl3
What is the correct description for an element?
A. Elements are made of two or more different types of atoms, chemically joined together
B. Elements are made up of one type of atom only
C. Elements are made of two or more types of atoms, not chemically joined
Answer:
B
Explanation:
Elements are made up of one type of atom only
A Rocket took 5 minutes to travel the 185 km. How fast did the Rocket travel in kilometers per minute (km/min)?
Answer:
The rocket travelled 37km per minute
Explanation:
185÷5=37
most of the waves in the electromagnetic spectrum are
Answer:
The entire electromagnetic spectrum, from the lowest to the highest frequency (longest to shortest wavelength), includes all radio waves (e.g., commercial radio and television, microwaves, radar), infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.
1. A truck is traveling at a speed of 12 km/s is going to school. It took 10 seconds to get to school. What was the distance?
Answer:
120km
Explanation:
To get speed you divide distance by time.
An object on Earth weighs 600 N and on Mars 100 N. If its mass on Earth is approximately 60 kg what is the mass of the object on Mars?
Answer:
I think its
10 kg
plzz plzz plzz. mark as brainliest
If the mass of an object is approximately 60 kg on earth then its mass remains the same on Mars which is 60 kg because mass does not change from place to place.
What is mass?Mass in physics is a numerical representation of inertia, a fundamental property of all matter. What a body of matter is fundamentally is the resistance it offers to a change in its speed or location brought on by the application of a force. The more mass a body has, the less of a change a force exerts results. The kilogram is the unit of mass in the International System of Units, and it is defined by Planck's constant as being equal to 6.62607015 × 10⁻³⁴ joules second (SI).
According to the question, the weight of an object depends on gravity which is different from place to place so weight also varies from place to place but the mass is constant everywhere it does not change. So, if the mass of an object is 60 kg on earth then it remains the same on mars also.
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PLEASE HELP!!!!
1. Suppose a planet orbits a star at the same distance
as Earth (1 AU) but with a period of roughly 200
Earth days. The mass of the central star is:
a. less than the mass of our sun.
b. the same as the mass of our sun.
c.greater than the mass of our sun.
d. impossible to determine without
knowing the mass of the planet.
Since the period of the supposed planet is less than the period of the earth orbiting the sun, That means the mass of the central star is greater than the mass of the sun. The answer is option C
According to Kepler's third law of planetary motion for planets and satellites, he described circular orbit about the same center body stating that:
The squared of the period is directly proportional to the cube of the radius. That is,
[tex]T^{2} \alpha r^{3}[/tex]
The orbital period formula is expressed as :
[tex]T^{2}[/tex] = 4[tex]\pi ^{2}[/tex] [tex]r^{3}[/tex] ÷ GM
Suppose a planet orbits a star at the same distance as Earth (1 AU) but with a period of roughly 200 Earth days. The mass of the central star will be greater than the mass of our sun based on the formula given above.
In a geostationary orbit, whatever the mass of the satellite may be, they will travel at the same speed in a particular orbit. mass M in the above formula becomes the mass of the sun or the center mass.
Since the period of the supposed planet is less than the period of the earth orbiting the sun, That means the mass of the central star is greater than the mass of the sun.
Therefore, the correct answer is option C
Learn more here: https://brainly.com/question/19680441
what would be Vy and pllzzzzzzz help
Answer:
2400m/s , 2240,2080,1920m/s
what is pole of magnet
and
define the term magnetic line of force
Answer:
1. The magnetic pole is the region at each end of a magnet where the external magnetic field is the strongest.
2. magnetic line of force - a line of force in a magnetic field. field line, line of force - an imaginary line in a field of force; direction of the line at any point in the direction of the force
Explanation:
Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation:
Answer:
its in this order 2,1,1
Explanation:
trust me bro
Answer:
221 is the actual answer
Explanation:
dont trust the person above me
Alice and Julio’s company makes protective coverings for off-roading vehicles. Alice’s job involves harvesting a natural polymer from trees. Julio’s job is to take that material and change it chemically to create a synthetic polymer.
Which materials do Alice and Julio most likely work with?
Alice works with vulcanized rubber, and Julio works with natural rubber.
Alice works with natural rubber, and Julio works with vulcanized rubber.
Alice works with cellulose, and Julio works with nylon.
Alice works with nylon, and Julio works with cellulose.
Answer:
Alice works with natural rubber and Julio works with vulcanised rubber.
Explanation:
Natural rubber is a polymer from tree.So it satisfies the profession of Alice.vulcanised rubber is artificial or synthetic polymer.So it satisfies the profession of JulioAnswer:
B. Alice works with natural rubber, and Julio works with vulcanized rubber.
Explanation:
I just took the test and got 100 percent.
I hope this helps you!!!!
Please mark my answer the Brainiset. Thank You!!!!!
