1,302 Answered Questions for the topic physical science

Physical Science Science

02/02/24

Climate Science Air Pressure Questions!
1) Under normal atmospheric conditions, what is the relationship between air pressure and air temperature?A) there is no relationship between air temperature and moistureB) warmer air holds more... more
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Physical Science

02/02/24

What is the significance of the Foucault Pendulum?
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Physical Science

02/01/24

Missing value in rectangular prism
help please!! H=13cm W=2cm, and the total volume is 104cm cubedthe length is missing and i'm really new to physical science as i just started learning it as a homeschooler.it's on a quiz to review... more
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Physical Science

02/01/24

Express wavefunction in spherical harmonics & show normalisation
Ψ(Θ,φ)=√(27/40π)sinθcosθ e iφ -√(3/10π) sin 2 θ e 2iφ1-write Ψ in terms of the spherical harmonics.2-Prove that the wave function is normalized?
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01/31/24

An interesting projectile motion problem
I found this problem on the internet:Conditions are:No air resistance and the ball is a point of mass.Also, the size of the soccer goal is slightly different from the standard one.The... more
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01/24/24

Physics problem: torque of forces
I came across this task on a website and have been curious about its solution, but I’m having trouble figuring it out:First, let's assume that the springs barely stretch.A long, rigid pallet of... more
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01/24/24

Intriguing physics problem: photometry
The question is: What is the intensity of illumination on the inner surface of the exposed spherical shell?Condition: the size of the hole with a small radius "d" is much larger than the wavelength... more
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Physical Science Science Physics Computer Science

01/23/24

Do Broadband Vibrations affect the de Broglie wavelength of Lattice Like Materials (e.g Graphene)
I have a random but curious thought that I was wondering if it can be answered extensively.I would like to know what would happen if a Lattice like material (e.g Graphene) were to be exposed to an... more
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01/20/24

Electricity and Magnetism question. Please help ASAP!
A uniformly charged insulating rod of length 17.0 cm is bent into the shape of a semicircle as shown in the figure below. The rod has a total charge of −7.50 µC. The link to the figure is... more
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01/12/24

Angular momentum of a rigid body physics problem
I came across this task on a website and have been curious about its solution, but I’m having trouble figuring it out:A cube with side edges d=2m, with homogeneous mass distribution, slides with... more
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Physical Science Math Science Physics

01/11/24

Interesting friction physics problem

The following task was discussed on an internet site, and I also became curious about its solution, but I simply can't figure it out: On a horizontal, rough table, the coefficient of sliding... more
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01/11/24

Variable capacitor
I came across an interesting task in a post:A variable capacitor, whose initial capacity is C, is charged to a voltage U and then short-circuited through a resistor R.1. Determine the ratio of the... more
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Physical Science

01/05/24

What is the difference between high and low pressure systems in the Northern Hemisphere?
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Physical Science

12/03/23

Doubling the coefficients of a reaction doubles it ∆H°rxn. True or false?
Doubling the coefficients of a reaction doubles it ∆H°rxn. True or false?This question is regarding physical chemistry. Thank you so much.
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Physical Science

12/01/23

What do I do if I get 0 as an end result with an empirical formula?
I'm trying to find the empirical formula and I divided the amount by the mass and then the mass by the total mass, but I got 0. I don't know what I'm supposed to do.
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Physical Science

11/29/23

is A rod has a height of 7cm and a radius of 0.5cm. What is the density of the rod, in g/cm3 , if its mass is 33g?
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Physical Science Math Algebra 1 Algebra 2

10/08/23

At what temperature does specifying Celsius or Fahrenheit not matter?
There is a specific temperature, where if you had a Celsius and a Fahrenheit thermometer, the values on both thermometers would read the same numerical value. Determine the temperature this occurs... more
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Physical Science

10/06/23

Lee Ben Fardest (esteemed American ski jumper), has a mass of 59.6 kg. He is moving with a speed of 23.4 m/s at a height of 44.6 meters above the ground. Determine the total mechanical energy

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Physical Science

09/22/23

Chapter 14 Question

Question 2: Describe the addition and the condensation polymers. Explain the difference between the reactions by which those two groups of polymers are obtained. Provide the examples of both... more
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Physical Science

09/22/23

Question 14 Help

Use each of the following names to classify each hydrocarbon as alkane, cycloalkane, alkene, alkyne, or aromatic hydrocarbon.... more
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Physical Science

09/22/23

Chapter 13 Question Help

 a) Write and balance the reaction for the complete combustion of heptane, C7H16. Explain the principle of how you chose the coefficients to balance the reaction.b) What would be the molarity of a... more
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Physical Science

09/19/23

Chapter 12 Question 2 Help Please

 a) Calculate the formula mass (molar mass) of the following compounds: Ca3(PO3)2, (NH4)2CO3,  C2H5OH.b) Find the percentage by mass of each element in: C2H5OH, (NH4)2SO4, Ca3(PO3)2.
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Physical Science

09/19/23

Chapter 12 Question
Potassium reacts with a certain element to form a compound with general formula K2X. What would the most likely formula be formed between aluminum and the element X? Explain.
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Physical Science

09/12/23

Unit 1 Question 3

A sled and rider with a combined weight of 60 kg are at rest on the top of the hill of 12 m high. Assuming there is no friction along the slope, calculate the speed at which the sled will be moving... more
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Physical Science

09/12/23

Unit 1 Question 2
Explain in your words the differences between three types of spectra (continuous, emission, absorption), and provide examples on where and when would one observe each of those spectra in the... more
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