It requires a 70.4 N force (parallel to the inclined plane) to pull a 5.86 kg box up a 58.1° inclined plane with a rope at a constant speed. (a) What is the coefficient of kinetic friction between the inclined plane and the box?
(b) If the rope were to break, what acceleration would the box experience as it slid down the ramp?
Answers
Answer:
0.667; 4.965
Explanation:
Look at the picture I attached for the force analysis.
a) The coefficient=Friction/Normal Force. Because it's at constant speed, the force of friction + mgsin58.1° (because it's on an inclined plane and has split forces) is equal to the applied force (70.4N). Normal force is not equal to weight force though, because the box is on an inclined plane; it's equal to mgcos58.1°.
b) If it were to break, then the box no longer has an applied force, and the direction of friction has changed to up the inclined plane. F=m/a, so acceleration = mgsin58.1°- Friction/mass
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What the number ??? Help Please
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Answer:
first number is 113 and the second number is 15
If a category 6 hurricane would exist how fast do you think it would be?
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After the series of powerful storm systems of the 2005 Atlantic hurricane season, as well as after Hurricane Patricia, a few newspaper columnists and scientists brought up the suggestion of introducing Category 6, and they have suggested pegging Category 6 to storms with winds greater than 174 or 180 mph (78 or 80 m/s).
There is no such thing as a Category 6 hurricane. When Hurricane Irma was headed toward the coast of southern Florida in August, it had maximum wind speeds of 185 mph, according to the New York Times. But the Saffir-Simpson scale only goes up to 5.Hope it helps(◠ᴥ◕ʋ)Abigail runs one complete lap (400m) around the track, while Gabi runs a 50 meter dash in a straight line. Which runner had a greater displacement?
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Answer:
The distance of one lap on this track from the start line to the finish line is 400 meters. Two laps around the track is 800 meters, half a lap is 200 meters, and so on.
Remember, displacement is the direction from the starting point and the length of a straight line from the starting point to the ending point. If a runner was going to run 400 meters (one lap around the track), they would start and stop at the same place on the track. Therefore, their displacement would be 0.
Explanation:
hope this helped
Answer:
[tex]\boxed {\boxed {\sf Gabi \ had \ greater \ displacement}}[/tex]
Explanation:
Displacement is the change in the position of an object.
Abigail runs a complete lap around the track, which is 400 meters. Even though she ran 400 meters, she has no displacement. If she starts and ends at the same spot, there is no change in position.
Gabi runs a 50 meter dash in a straight line. Gabi has 50 meters of displacement. She runs in a straight line and is 50 meters away from where she began.
While Abigail ran the farther distance, Gabi had the greater displacement.
Please answer all questions if you do I mark you
Answers
Explanation:
1. A
2. B
3. I don't know this one but my guess is b
what is 7 kg on the moon in newtons?
Answers
Answer:
11.37N
Explanation:
We can use the GUESS method to derive our solution.
Given:
We know our mass, and our acceleration. The acceleration on the moon is 1.625m/s^2.
[tex]m = 7kg \\ a = 1.625 \frac{m}{ {s}^{2} } [/tex]
Unknown:
We don't know, and are trying to find the force in Newtons.
[tex]F[/tex]
Equation:
We can use Newton's second law to find the solution.
[tex]F = ma[/tex]
Substitute:
Let's substitute our values into our equation.
[tex]F = 7 \times 1.625[/tex]
Solve:
We find our solution after solving for F.
[tex]7 \times 1.625 = F \\ 11.37 = F[/tex]
Our solution is 11.37N
The function of the liver in the metabolism of amino acids is to
Answers
Answer:
Produce energy, or make carbohydrates or fats.
Explanation:
use these terms in to show they are related, radiant energy, solar collector, active solar heating system
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Answer:
The term "solar collector" commonly refers to a device for solar hot water heating, but may refer to large power generating installations such as solar parabolic troughs and solar towers or non water heating devices such as solar air heaters. radiant energy is the energy of electromagnetic and gravitational radiation.Active solar heating systems use solar energy to heat a fluid;either liquid or air; and then transfer the solar heat directly to the interior space or to a storage system for later use. If the solar system cannot provide adequate space heating, an auxiliary or back-up system provides the additional heat.
ONLY ANSWER IF YOU KNOW FOR SURE PLEASE :)
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Answer:
Question one is b, Question two is b, and question three is b, im pretty positive that what it is
imagine that you’re riding in a car. the car suddenly begins to accelerate forward (positive acceleration). what do you feel as you sit in the seat
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Answer:
Because the car is accelerating forward, you will feel your body push backwards, into the back of the seat.
friction and normal force are examples of
Answers
Answer:
Friction is a force that tends to oppose the relative motion between two bodies in contact. Frictional force always acts on a moving body from the direction opposite to the direction of motion. It opposes the motion, and therefore, helps to reduce the speed of the moving object. It is a contact force.
How far does an object travel if it is moving at a speed of 4 m/s for 3.2 seconds?
SOMEONE PLEASE HELP ME
Answers
Answer:
12.8 metres
Explanation:
distance = speed x time
distance = 4 x 3.2
distance = 12.8
What do protoplanets eventually grow into?
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Answer:
a planet
Explanation:
If planetesimals, objects that combined to form protoplanets, were to collide head on in the early solar nebula, they would shatter to the point where they would be unable to grow into a larger size, a protoplanet. A protoplanet is a massive object that will eventually become a planet.
Give two properties of an object that can be affected by a
physical change.
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Which liquid substance Would evaporate most quickly in the open air at 25 celius
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Compare and contrast synthesis and decomposition reactions.
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Answer:
Synthesis reactions are chemical reactions where two elements combine to make a product. Decomposition reactions are chemical reactions where a reactant produces another product, usually two, or even more. This is when the bonds in the compound are broken apart to make new compounds.
Explanation:
Express the sum of 2.52 kg + 131 g in kilograms with the correct number of significant
figures.
Answers
Convert second term into kg
131 = 0.131
Term has become:
2.52 + 0.131
The total is:
2.651 kg
A battery is connected in series with an ammeter and a variable resistor R.
When R= 6.0 ohms, the current in the ammeter is 1.0 A. When R= 3.0 ohms, the current is 1.5 A.
Calculate the internal resistance of the battery.
A. 6.0 ohms
B. 1.5 ohms
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D. 3.0 ohms
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Suppose you drop a 10-pound weight and a 5-pound weight on the Moon, both from the same height at the same time. What will happen? The 10-pound weight will hit the ground before the 5-pound weight. The 5-pound weight will hit the ground before the 10-pound weight. Both weights will float freely because everything is weightless on the Moon. Both will hit the ground at the same time.
Answers
Answer:
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A persons resting rate heart rate typically blank with age
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hope this helps
If you were to mix 10 grams of salt into 100 grams of water, how much will the total mass of the solution be?
Group of answer choices
90 grams
100 grams
110 grams
10 grams
Answers
110 grams
mass of salt + mass of water
10 + 100
110g
Answer:
110 grams
Explanation:
If you were to mix 7 grams of sugar into 100 grams of water, how much will the total mass of the solution be?
No mass was gained or lost, so the mass would be 107 grams.
100 grams
107 grams
93 grams
95 grams
No mass was gained or lost, so the mass would be 107 grams.
(For your problem it would be 10+ 100= 110g)
Determine the kinetic energy of a 625-kg roller coaster car that is moving with a speed of 10 m/s.
Answers
Hi there!
Kinetic energy can be calculated using the following:
[tex]\large\boxed{KE = \frac{1}{2}mv^2}}[/tex]
Where:
KE = Kinetic energy (J)
m = mass (kg)
v = velocity (m/s)
Plug in the given values:
[tex]KE = \frac{1}{2}(625)(10^2) = \boxed{31250J}[/tex]
KE = 1/2 x mass x (velocity)^2
Mass = 625
Velocity = 10
Substitute the values into the equation.
KE = 1/2 x 625 x (10)^2
KE = 1/2 x 625 x 100
KE = 31250 joules
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Answers
A black hole forms as a star collapses when it ceases emitting radiation from fusion reactions. This occurs after the star has consumed hydrogen, helium, then through iron.
Star evolution refers to the process by which stars evolve (change) over time.
A black hole can be defined as a collapsed star where the gravitational field in its nucleus becomes greater than particles cannot escape from it.
In consequence, black holes are cosmic bodies in which gravity is so powerful that nothing (i.e., particles, radiation, light, etc.) can escape from them.
Nuclear fusion refers to the energy reactions produced by the fusion of hydrogen at the core of a star, thereby becoming helium.
Learn more about black holes here:
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A
person tries to lift each object with a force of 18 N, upward. Which
statement is supported by the data in the table?
A. Objects 1 and 2 will not move, and objects 3 and 4 will accelerate
upward.
B. None of the objects will move, but the normal force on all of the
objects will increase.
O C. All of the objects will move, and object 2 will accelerate upward
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D. Objects 1 and 2 will move downward, and objects 3 and 4 will
move upward.
Answers
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Explanation:
Because objects 1 and 2 require more force in order to move, they will stay motionless.
Correct me if I am incorrect.
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Answers
Answer:
see explanation
Explanation:
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one of them is Space & Interstellar Travel
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Answers
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Answer:
members of a control group receive a standard treatment, a placebo, or no treatment at all.
Explanation:
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- A. Decrease the charge of one of the particles.
B. Increase the charge of both particles.
C. Increase the charge of one of the particles.
D. Decrease the distance between the particles.
E. Increase the distance between the particles.
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Answers
Answer:
it is b and e
Explanation:
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Answers
Answer:
2556 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 284 × 9 = 2556
We have the final answer as
2556 NHope this helps you
True or false? Gas pressure is caused by molecules in a gas colliding with the walls of their container.
Answers
Answer:True
The number of molecules hitting the unit surface per unit time increasethe gas pressure increases.
Which are the products in the equation CH3SH + 4O2 → CO2 + SO2 +2H2O? Check all that apply.
Answers
Answer:
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Answers
If the wave velocity and frequency of a wave are both doubled, the wavelength will remain the same.
The wavelength of a wave shows the spatial orientation of distance between two successive crest in a wave medium.
The wavelength λ is expressed by using the relation:
[tex]\mathbf{\lambda = \dfrac{v}{f}}[/tex]
Now, if velocity and frequency of wave is both doubled, the wavelength will remain the same.
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