A packaging company purchases corrugated cardboard boxes in which to pack its goods. The boxes are not made up when they are delivered, but are flat,A bundle of these boxes measures 0.60 m x 0.50 m x 0.20 m and has a
weight of 72 N. Calculate the pressure exerted by the cardboard boxes
To calculate the pressure exerted by cardboard boxes, divide the force due to gravity (weight) by the area over which it is applied. Using the given weight of 72 N and the calculated base area of 0.30 m², the pressure exerted by the boxes can be determined.
Explanation:The question relates to calculating the pressure exerted by a stack of corrugated cardboard boxes on a surface. Pressure is defined as the force applied per unit area. The formula to calculate pressure (P) is P = F / A, where F is the force in newtons (N) and A is the area in square meters (m²). Given that the weight of the boxes is 72 N (which is the force due to gravity acting on them) and the base area of the boxes is calculated from the provided dimensions (0.60 m x 0.50 m = 0.30 m²), the pressure exerted can be calculated by dividing the force by the area over which it is applied.
To find the pressure, we thus use: P = 72 N / 0.30 m². Executing this calculation provides the pressure exerted by the cardboard boxes on the surface they are lying on.
The ‘hubble constant, h0’ is used to determine
Answer:
Estimate the size and age of the universe
Explanation:
It is one of the most important numbers in cosmology because it is needed to estimate the size and age of the universe.
A red apple will appear black when illuminated with
The method of body composition measurement that sends a small current through the body to measure the resistance based on percentage of body water is
What is the average rate of formation of br2?
Science cannot be used to answer questions about _____.
A large balloon is initially filled to a volume of 25.0 l at 353 k and a pressure of 2575 mm hg. what volume of gas will the balloon contain at 1.35 atm and 253 k? 6) _______
a.45.0 l
b.11.4 l
c.87.5 l
d.22.2 l
e.58.6 l
The final volume of the balloon at the given temperature is 45 l.
General gas lawThe volume of the balloon is determined by applying general gas law as shown below;
V₂ = (V₁P₁T₂)/(T₁P₂)
Where;
P₁ = 25 L
V₁ = 2575 mmHg
T₁ = 353 K
P₂ = 1.35 atm = 1206 mmHg
T₂ = 253 K
V₂ = ?
The final volume of the balloon at the given temperature is calculated as follows;
V₂ = (25 x 253 x 2575)/(353 x 1026)
V₂ = 45 l
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how to calculate the average velocity, in m/s.
How much electricity does an electric oven use/?
The electricity usage of an oven is found by multiplying the power rating in kilowatts by the duration in hours. For a 3600 W oven used for 1 hour, the consumption is 3.6 kWh. The cost can be calculated by multiplying the energy consumed by the unit price of electricity.
The electricity usage of an electric oven can be calculated by multiplying its power rating by the amount of time it is used. For instance, if an oven with a power rating of 3600 W (watts) is used for baking a cake for 1 hour, the energy consumption can be determined using the formula:
Energy consumption (kWh) = Power rating (kW) times Time used (h)
Since 1 kW = 1000 W, we convert the power rating to kilowatts (kW) first:
3600 W = 3.6 kW
So, the energy consumed by the oven for baking the cake would be:
3.6 kW times 1 hour = 3.6 kWh (kilowatt-hours)
This is the energy consumption for that specific use. To calculate the cost, you can multiply the energy consumed by the unit price of electricity, which varies depending on the region and the service provider. For other appliances with different power ratings and usage times, the same formula applies, with the hours adjusted accordingly. The duty cycle, or how often an appliance is on, also significantly impacts energy usage. A microwave oven, for example, might have a high-power rating but generally uses less energy overall because it's on for much shorter periods compared to something that might run continuously, like a television tuner box.
Can a vector have nonzero magnitude if a component is zero?
A particular wave can be described as transverse and self-propagating. What type of wave could it be?
A sound wave
A seismic wave
An ocean wave
A radio wave
Answer:
A radio wave
Explanation:
Self propagating waves are those type of waves in which wave will induce the effect of by its own components.
One of the best example for this is Electromagnetic waves.
In electromagnetic waves electric field components and magnetic field components will oscillate perpendicular to each other and they both are perpendicular to the direction of propagation of wave also.
So here the disturbance due to electric field and magnetic field is since perpendicular to wave propagation so it is known as transverse wave.
So here we can say that correct answer must be an electromagnetic type of wave
so it must be
A Radio Wave.
What is the role of magnetism in the study of x-ray imaging?
Final answer:
Magnetism in x-ray imaging, particularly in MRI, is essential for generating detailed body scans. A superconducting magnet creates a strong magnetic field that aligns hydrogen protons, whose reaction to radio wave broadcast and reemission provides the data to create images of internal body structures and functions.
Explanation:
The role of magnetism in the study of x-ray imaging, specifically in Magnetic Resonance Imaging (MRI), is crucial for producing detailed images of the inside of the human body. The largest part of the MRI unit is a superconducting magnet that creates a magnetic field, typically between 1 and 2 T in strength, over a relatively large volume. This magnetic field aligns the protons in the body, which are primarily found in hydrogen atoms, thereby establishing a uniform state. When radio frequencies are broadcast over an appropriate range, these aligned protons absorb and reemit the radio waves. The MRI scanner then captures these reemitted waves to create images of the body's interior. Variations in the magnetic field allow for the differentiation of various tissue types, providing detailed images of structures such as vertebral disks, brain tissue, and knee joints. MRI's ability to track the movement of certain ions across membranes also offers valuable information on biological processes such as active transport, osmosis, and dialysis.
Why does a balloon that is rubbed on someoneâs shirt stick to a wall at a party?
People with long-term clinical depression tend to have more heart disease because A. people who are clinically depressed eat foods that are higher in fat. B. depressed people don't care about their heart health. C. the levels of heart-damaging chemicals in the blood are generally higher in depressed people. D. exercise is too difficult for people who are depressed.
Answer:
Option (A).
Explanation:
Depression may be defined as physical condition in which the individual may get depress and loss the interest in any activity. Depression can leads to various mental health problems in the individual.
The depressed people eat foods that include more content of food. The high fatty food causes the heart related problems in the organisms and may completely block the functioning of heart.
Thus, the correct answer is option (A).
What's the difference between a scientific law and a scientific theory?
Which classification scheme is based on the brightness of a star as it appears to you in the night sky?
An object with an initial velocity of 3.0 m/s has a constant acceleration of 2.0 m/s2. When its speed is 19.0 m/s, how far has it traveled?
A car travels south at 30 m/s for 5 minutes. What is its velocity
Answer:
Explanation:
Velocity = 30 (-j) m/s
Displacement = velocity x time = 30 x 5 x 60 = 9000 m South = - 9000 j m
The velocity of the car traveling south for 5 minutes is 30 m/s is 9000 m and acceleration of the car is 0.1 m/s² (if its direction is changing).
What is velocity ?Velocity of an object is the distance travelled by the object per unit time. Velocity is a vector quantity having both direction and magnitude. It is the ratio of distance to the time taken for travel.
Given that,
velocity v = 30 m/s
time t = 5 minutes
t = 5 × 60 = 300 seconds
Then, distance travelled = v × t
d = 300 s × 30 m/s =9000 m
Acceleration of the object is the rate of change in its velocity. If the object is moving with constant speed and there is a change in direction there will be an acceleration.
a = v/t
a = 30 m/s/300 s = 0.1 m/s².
Therefore, the distance travelled by the car is 9000 m and its acceleration is 0.1 m/s².
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Your question is incomplete. But your complete question probably was:
A car travels south at 30 m/s for 5 minutes. What is distance of travel and acceleration ?
What unit measurement would you use to find the amount of soda in a large bottle
Final answer:
The amount of soda in a large bottle should be measured in liters, as this is the standard unit for volume or capacity of liquids. Correct use of units is essential for clear communication and safety.
Explanation:
To find the amount of soda in a large bottle, the most appropriate unit of measurement is liters. This is because liters are a standard unit for measuring volume or capacity, specifically for liquids. When we discuss containers such as a soda bottle, the volume of liquid they can hold is typically measured in liters. For example, a 2-liter soda bottle has a volume that is exactly twice that of what is universally accepted as 1 liter.
It's crucial to use the correct units of measurement, as they provide a standard of comparison to quantify physical quantities. Without units, values would be meaningless and could lead to confusion or, in critical situations like medication dosages, dangerous outcomes. Therefore, when measuring the amount of soda in a large bottle, referring to liters ensures clear and accurate communication of the quantity.
The nature of a volcanic eruption is determined largely by the ________ of the magma.
Answer:
Chemistry
Explanation:
The composition of magma, the temperature of magma and the amount of dissolved gasses in the magma are all responsible for the nature of eruption.
Magma could be composed of dust, blocks, bombs, cinders and other gases.
The nature of eruption also depends on the temperature as magma could erupt at varying temperatures from 700[tex]^{2}[/tex]C to 1300[tex]^{2}[/tex]C and even at higher temperatures reaching 1600[tex]^{2}[/tex]C.
what is meant by saying that a hypothesis must be testable ?
Final answer:
A hypothesis must be testable and falsifiable, which means it can be supported or refuted through appropriate experiments or observations, and disproven by experimental results. This testability ensures a hypothesis can be scientifically validated or discarded based on evidence.
Explanation:
A hypothesis must be testable to be considered valid in the scientific community. This means it must be possible to perform experiments or make observations that could support or refute the hypothesis. In addition, a valid hypothesis must be falsifiable, which implies that it can be disproven with experimental results. Science does not seek to 'prove' hypotheses definitively since new evidence can always modify current understandings.
Rather, science works on falsifying incorrect hypotheses and supporting those that withstand testing. The testability of a hypothesis is crucial for the scientific method, as it allows hypotheses to be eliminated if they do not align with experimental data and observations.
Thus, a hypothesis about what a bear thinks would not be testable because we cannot empirically determine the thoughts of a bear. A good experiment will have variables that can change and controls to ensure that any differences in outcomes can be attributed to the variable under investigation, not to other factors.
For instance, to test the hypothesis that a classroom is warm because the air conditioning is not turned on, a researcher might conduct an experiment where they turn on the air conditioning to see if it affects the temperature. If it does not, then the hypothesis can be discarded.
In contrast to a scientific hypothesis, a statement like 'Botticelli's Birth of Venus is beautiful' cannot be tested or falsified because it is based on subjective opinion rather than an empirical claim. Therefore, hypotheses that are neither testable nor falsifiable fall outside the scope of scientific inquiry.
The moon has a mass of 7.35 e 22 kg and is located 3.84 e 8 meters from the earth. if ellen, an earthling, has a mass of 47 kg, what is the gravitational force between ellen and the moon?
Answer:
The gragitacional force is 1.56 10⁻³ Kg
Explanation:
The gravitational force between two bodies is proportional to their mass and inversely proportional to the square of the distance between them, is described by the equation
F = G m₁ m₂ / r²
With G being the universal gravitation constant with a value of 6.67 10⁻¹¹ Nm²/Kg², as they give us the mass of the bodies and the distance between them, we can calculate the force.
F = 6.67 10⁻¹¹ 47 7.35 10²² / (3.84 10⁸)²
F = 1.56 10⁻³ Kg
lo cuales muy pequeño
A thin film of oil (n = 1.27) is located on smooth, wet pavement. when viewed perpendicular to the pavement, the film reflects most strongly red light at 640 nm and reflects no blue light at 427 nm. how thick is the oil film?
(a) can you neglect the force of gravity when solving for the horizontal distance traveled by the particle?
A major benefit of the daguerreotype process is that ________.
Daguerreotype is defined as the first practical photographic process which was introduced in Paris on January 7, 1839. To make the image permanent, Daguerre used salt solution. The result of his introduced process is a finely defined image with surface which is delicate. The major benefit of daguerreotype is if the images are correctly preserved, the pictures could last forever. Aside from this, since it produces superior quality of outline, it is thus suitable for portraitures.
Final answer:
The major benefit of the daguerreotype process was its ability to produce sharp, clear images with reduced exposure time, making photography more accessible and affordable for the general public in the 19th century.
Explanation:
A major benefit of the daguerreotype process is that it produced exceptionally sharp and clear images with reduced exposure time compared to previous photographic methods. The daguerreotype, invented by Louis Daguerre in 1839, utilized a polished copper plate coated with silver iodide to capture images. Despite the limitation of creating only a single, non-reproducible image, the daguerreotype was the first widely available and relatively affordable photographic technique for the general public, fulfilling the burgeoning middle-class demand for portraiture during that era.
the measurement of an exoplanet radius is measured in units compared to
Exoplanet radii are measured in comparison to known planetary sizes to understand their scale and characteristics.
Exoplanet radii are typically measured in units compared to either Earth's radius or the radius of Jupiter, which are used as reference points in astronomical studies.
The comparison of exoplanet radii to these well-known planetary sizes helps scientists understand the scale and characteristics of these distant worlds.
For example, if an exoplanet is said to have a radius of 0.5 times that of Jupiter, it means the exoplanet's radius is half the size of Jupiter's radius.
In thinking of an inductor as a circuit element, it is helpful to consider its limiting behavior at high and low frequencies. at one extreme, the inductor might behave like a short circuit, that is, like a resistor with almost no resistance (an ideal wire) having essentially no voltage drop across it no matter what the current. alternatively, the inductor might behave like an open circuit, that is, like a resistor with large resistance so that essentially no current will flow no matter what the applied voltage. based on the formula you obtained for the reactance, how does an inductor behave at high and low frequencies?
An inductor is just a coil of wire with magnetic properties. It is a device that stores electromotive force or energy in the form of magnetic field. A current yields a magnetic field around it through a conductor. The pattern of flux for this magnetic field would be the number of concentric circle perpendicular to the detection of current. The capacity of the inductor is affected by the number of coils which would give more inductance, the material that is used for the coil, the cross sectional area of the coil and the length of the coil. For instance you have an 8 meters diameter coil with seven loops of wire. You place the coil on an area where there is a parked car. The inductance of the coil will be much larger compared to the coil without a parked car nearby because of the presence of the steel from the car. It changes the magnetic field of the coil because it acts as a core of the inductor.
A 750.0-kg boulder is raised from a quarry 125 m deep by a long uniform chain having a mass of 575 kg. this chain is of uniform strength, but at any point it can support a maximum tension no greater than 2.50 times its weight without breaking. (a) what is the maximum acceleration the boulder can have and still get out of the quarry, and (b) how long does it tak
Answer:
Part a)
[tex]a = 0.82 m/s^2[/tex]
Part b)
[tex]t = 17.44 s[/tex]
Explanation:
Part a)
Maximum tension that is obtained by the rope is 2.5 times the weight of the rope
So here we know that
mass of the boulder = 750 kg
mass of the chain = 575 kg
now total mass of the boulder and chain = 750 kg + 575 kg
[tex]M = 1325 kg[/tex]
Now we have maximum tension in the rope is given as
[tex]T = 2.5 \times 575 \times 9.8[/tex]
[tex]T = 14087.5 N[/tex]
now from Newton's 2nd law we have
[tex]T - Mg = Ma[/tex]
[tex]14087.5 - (1325\times 9.81) = 1325 a[/tex]
[tex]a = 0.82 m/s^2[/tex]
Part b)
Time taken by the boulder to raise by 125 m depth
we can use kinematics and we will assume here that it will start from rest and accelerate at above maximum value that we found in part a)
so by kinematics
[tex]d = v_i t + \frac{1}{2}at^2[/tex]
[tex]125 = 0 + \frac{1}{2}(0.82)t^2[/tex]
[tex]t = 17.44 s[/tex]
An object launched from ground level at a velocity of 5 m/sat a 37 degree angle. Neglecting air resistance, what is the speed of the object when it hits the ground?
a)9 m/s
b) 5 m/s
c)8 m/s
d) 2 m/s
In physics, an object launched and falling freely (ignoring air resistance) will hit the ground with the same speed it had upon launch. Therefore, if the object was launched at 5 m/s, it will also hit the ground at 5 m/s.
Explanation:The subject of this problem is the physics principle of conservation of energy, specifically kinetic energy. An object that has been launched and is falling freely (neglecting air resistance) will have the same speed when it hits the ground as it had when it was launched from the ground. This is because the gravitational potential energy it gains while ascending is completely converted back to kinetic energy as it descends. Consequently, if an object was launched from ground level at a velocity of 5 m/s at a 37-degree angle, it will hit the ground with the same speed of 5 m/s.
Therefore, the answer is (b) 5 m/s.
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At 20 miles per hour the average driver, from the moment he sees danger until he hits the brake, will travel about: 55 feet 88 feet 44 feet 10 feet
This type of question is based on a standard and is not really calculated. According to the TX Adult Drivers Ed Course, the correct answer to this question will be:
“44 feet”
The distance of 44 feet actually corresponds to approximately 1.5 seconds average reaction time of drivers.
Answer:
According to the rules of physics and mathematics there is no actual calculation there are only standard and the right answer will be 44 feet.
Further Explanation:
Explanation:
These are the numerical of physics and can be solved very easily we can easily calculate the answer if we know the rules of mathematics.
Calculation:
According to the rules of physics then you can easily find out the calculation. Which is 44 feet.
Answer :
As I calculated it easily then you can also find it easily if you know the rules.
Answer Details:
Subject: Physics .
Level: High school .
keywords:
Explanation:
Answer :
Calculation:
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