Answer:
b is correct answer
Explanation:
A parallel beam of light falls on two small slits 5x10-5 m apart.
A) If the distance between the central and 1st fringe is 0.06 m and the light is being
projected onto a screen 5 m away, what is the wavelength of the light?
B) Roughly what color is it?
Answer:
λ = 6 10⁻⁷ m, color orange
Explanation:
This problem is about the interference phenomenon, constructive interference occurs when the path difference is equal to an integer number of wavelengths
d sim θ = m λ
Let's use trigonometry, remembering that the angles for these experiments are very small.
Sin θ = y / L
tan θ = [tex]\frac{sin \theta}{cos \theta}[/tex] = sin θ
sin θ = y / L
we substitute
[tex]d \ \frac{y}{L} = m \lambda[/tex]
A) Donut length is requested
λ = [tex]\frac{d \ y}{m \ L}[/tex]
let's calculate
λ = 5 10⁻⁵ 0.06 /( 1 5)
λ = 6 10⁻⁷ m
B) let's express the wavelength in nm
λ = 6 10⁻⁷ m = 600 nm
this corresponds to the color orange
What unit of measure is used to measure temperature?
a. Joules
b. Fahrenheit
c. Meters
d. Liters
Answer:
B. Fahrenheit measures temperature!
Which of Newton’s laws explains why a satellite continually orbits the earth and does not fall into the ground?
1st
2nd
None
3rd
Answer:
Newtons 1st law of inertia
Explanation:
Explanation:
probably the 1st law of motion, it'll continue at in a straight line as long as no external force is added or the net force equals to zero, same for the centrifugal force and the gravitational force
Imagine a negative test charge sitting at the coordinate origin (0,0). Two bunches of positive charges are located on the x-axis and the y-axis, respectively, so that the vectors of the respective electric forces, which the test charge experiences, point from the origin at points (1,0) and (0,1), respectively. The total force vector, which the test charge experiences, points from the origin at the point __________
Answer:
the total force vector, on test charge is points from origin to point C( 1, 1 )
Explanation:
Given the data in the question, as illustrated in the image below;
from the Image, OA = 1, OB = AC = 1
so using Pythagoras theorem
a² = b² + c²
a = √( b² + c² )
so
OC = √( OB² + AC² )
we substitute
OC = √( OA² + AC² )
OC = √( 1² + 1² )
OC = √( 1 + 1 )
OC = √2
Coordinate of C( 1, 1 )
Hence, the total force vector, on test charge is points from origin to point C( 1, 1 )
List and describe the three elements of language.
Answer:
the three major elements of language include form, content, and use. form involves three sub-components of syntax, morphology, and phonology. content is also known as semantics and use can be known as pragmatics.
Explanation:
hope this helps! :)
Aphids are a type of insects that sucks the sap out of certain types of plants, including potatoes. Not only do they physically damage and weaken the potato plants, but they can also infect them with diseases.
Which of the following examples shows a relationship that is most like that of the aphid and potato plants?
Answer Choices:
A. Crop plants must compete with weeds for available resources like nutrients, water, and space.
B. Anemones protect clownfish from predators while benefiting from nutrients in the waste of the fish.
C. The mistletoe plant attaches to trees and extracts nutrients for itself, which stunts tree growth.
D. Remora fish attach to sharks, eat scraps off the shark's prey, and remove parasites from the shark's skin.
SOMEONE HELP Jeffery used a stream table as a model to show how water erodes soil. As he sprayed water on the stream table, some of the soil was carried to the end of the table.
Jeffery used his stream table to model an interaction between which two spheres?
A. geosphere and biosphere
B. biosphere and atmosphere
C. hydrosphere and atmosphere
D. geosphere and hydrosphere
Answer:
Hydrosphere and atmosphere
Explanation:
a wheelbarrow contains two simple machines - a lever and a wheel and ax. for a certain wheelbarrow, the lever has an efficiency of 72%, and the wheel and axle has an efficiency of 64%. what is the overall efficiency of the wheelbarrow?
The magnetic field strength in an experiment is 5.0 x 10–4 Newtons per Amp meter (or 5.0 x 10–4 N A–1m–1), where the unit of force is the Newton (N = kg m s–2) and the unit of current is the Ampere (A = C s–1). A Coulomb, C, is a unit of charge. The electric field strength in another experiment is 1.8 x 104 N C–1. From these parameters, both the magnetic displacement and the electric displacement were each measured to be 6.0 cm. Calculate the velocity of the particles.
Answer:
The velocity of the particles is "0.36×10⁸ m/s".
Explanation:
The given values are:
Magnetic field strength,
B = 5.0×10⁻⁴ N/Amp
In another experiment,
F = 1.8×10⁴
By considering the Lorentz force, the velocity will be:
⇒ [tex]qE=qvB[/tex]
then,
⇒ [tex]v=\frac{F}{B}[/tex]
On substituting the given values, we get
⇒ [tex]=\frac{1.8\times 10^4}{5.0\times 10^{-4}}[/tex]
⇒ [tex]=0.36\times 10^8 \ m/s[/tex]
Measure the mass of a coin using a triple beam balance.
Explanation:
The triple beam balance is used to measure masses very precisely; the reading error is 0.05g
Select the correct answer
Alight wave travels at a speed of 3.0 x 108 meters/second. If the wavelength is 7.0X107 meters, what is the frequency of the wave?
Answer:
[tex]f= 3.0 \times 10 {}^{8} \div 7.0 \times 10 {}^{7} \\ f = 4.28hz[/tex]
Given
Of the following statements, which describes what pessimistic individuals tend to do?
A. They blame situational factors on their own personal failures.
B. They continually expect positive outcomes despite their own limitations,
C. They blame their personal inadequacies on situational factors.
D. They attribute limitations to personal flaws instead of situational factors.
Answer:
the answer is D
Explanation:
just took the test
Objects A and B both have mass 2 kg. Object A has temperature 20°C and Object B has temperature 40°C. The specific heat of Object A is larger than that of Object B. The two objects are isolated from the environment and are brought into thermal contact with each other and allowed to come to thermal equilibrium. Is the final temperature of both objects greater than, less than or equal to 30°C? Briefly explain your reasoning.
Answer:
Equal to 30°C.
Explanation:
The final temperature of both objects are equal to 30°C because of the conduction heat from one object to another. Both objects have same mass of 2 kg and both were isolated from the external environment so conduction of heat occurs from the more hotter body to the less hotter body until the temperature of both objects are equal to each other.
The final temperature of both objects is less than 30° C
What is the specific heat of an Object?
The specific heat of an object is the minimum required quantity of heat needed to raise the temperature of 1 gram of the object(substance) by 1° C.
From the parameters given:
The mass of both Object A and B = 2kgThe temperature of Object A = 20° CThe temperature of Object B = 40° CUsing the Calorimetry principle, we need to understand that the heat lost by an object at a high temperature is proportionally equal to that heat gained by the object at a low temperature.
i.e.
[tex]\mathbf{Q_{lost}= Q_{gain}}[/tex]
[tex]\mathbf{ms_B \Big[40^0 \ C - \theta_o\Big]= ms_A \Big [ \theta_o - 20^0 \ C \Big]}[/tex]
Given that:
The specific heat of object A is larger than that of object B i.e. [tex]\mathbf{S_A> S_B}[/tex]Then, let us consider a scenario where [tex]\mathbf{S_A = 1.5S_B}[/tex]
Thus;
[tex]\mathbf{S_B \Big[40^0 \ C - \theta_o\Big]= 1.5S_B \Big [ \theta_o - 20^0 \ C \Big]}[/tex]
[tex]\mathbf{40^0 \ C - \theta_o= 1.5 \theta_o - 20^0 \ C}[/tex]
[tex]\mathbf{ 2.5\theta_o= 70^0 \ C}[/tex]
[tex]\mathbf{ \theta_o= \dfrac{70^0 \ C}{2.5}}[/tex]
[tex]\mathbf{ \theta_o=28 ^0 C}[/tex]
Therefore, we can conclude that since the specific heat of object A is larger than that of object B i.e. [tex]\mathbf{S_A> S_B}[/tex], then the final temperature [tex]\mathbf{ \theta_o<30 ^0 C}[/tex]
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Which of the following is an example of vibrational kinetic energy?
windmill
heat
pendulum
bouncing ball
Answer:
It's the Pendulum, it is because during its to and fro motion, it vibrates and simulataneously exhibit kinetic energy.
Explanation:
:)
Answer:
bouncing ball bc it has kinetic energy. the pendulum has potential energy.
Explanation:
An ant is crawling on the sidewalk. At one moment, it is moving south a distance of 5.0 mm. It then turns southwest and crawls 4.0 mm. What is the magnitude of the ant’s displacement?
A) 8.3mm
B) 8.3cm
C) 8.3m
D) 8.3km
The correct answer is (A) 8.3mm.
The total displacement will be the vector sum of the two displacements given in the question.
let the displacement to the south represent vector A = 5mm in magnitude directed toward south.
let the displacement to the south-west represent vector B = 4mm in magnitude directed toward south-west.
The angle between vector A and vector B is 45°, the angle between south and south-west.
SO the resultant
R = vectro A + vector B
[tex]R=\sqrt{A^{2}+B^{2}+2ABcos(45) } \\\\R=\sqrt{25+16+40*\frac{1}{\sqrt{2} } } \\\\R=8.3mm[/tex]
The ant's displacement is 8.3 mm in magnitude.
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Whenever a body is in motion there is always a ____ to oppose the motion
A. Friction
B. Intertia
C. Gravity
D. acceleration
Whenever a body is in motion there is always a friction to oppose the motion.
What is friction ?"Friction is a force that resists the motion of one object against another."
Friction is a force that opposes relative motion between surfaces in contact. One of the simpler characteristics of friction is that it is parallel to the contact surface between surfaces and always in a direction that opposes motion or attempted motion of the systems relative to each other.
know more about friction here
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Which pair of objects is experiencing the greatest gravitati nal force?
5 kg
5 kg
O A.
d = 5 m
2 kg
2 kg
OB.
d: 5 m
2 kg
2 kg
OC.
d = 1 m
5 kg
5 kg
O D.
d = 1 m
Answer:
D
Explanation:
my instinct tell me so, that's why I chose D
When a man is walking exhibit which type of equilibrium?
Answer:
Dynamic equilibrium
Explanation:
This is because dynamic equilibrium is when the body is set on motion at constant velocity. When humans are walking, when achieve unstable equilibrium that is not static or dynamic on the first foot and a non equilibrium when the other foot is involved. In human movement,it is at constant velocity and the Total number of forces acting is zero. This type of equilibrium always return to it's initial point after disturbances since humans did not continually walk all the time .
please help me with this i dont know it
Answer:
no it would not. that is an open circuit and it would need to be closed at the switch for current to flow.
explain the main development stages of the tropical hurricanes/cyclones and discuss their impacts according to the Saffir Simpson Hurricane Wind Scale
Answer:
The Saffir-Simpson Hurricane Wind Scale is a 1 to 5 rating based only on a hurricane's maximum sustained wind speed. This scale does not take into account other potentially deadly hazards such as storm surge, rainfall flooding, and tornadoes.
The Saffir-Simpson Hurricane Wind Scale estimates potential property damage. While all hurricanes produce life-threatening winds, hurricanes rated Category 3 and higher are known as major hurricanes*. Major hurricanes can cause devastating to catastrophic wind damage and significant loss of life simply due to the strength of their winds. Hurricanes of all categories can produce deadly storm surge, rain-induced floods, and tornadoes. These hazards require people to take protective action, including evacuating from areas vulnerable to storm surge.
Explanation:
pls mark as branlist.
Tropical hurricanes or cyclones are usually destructive with great wind speeds of 3 and above according to the Saffir Simpson Hurricane Wind Scale with huge amounts of rainfall resulting in flooding.
What is the Saffir Simpson Hurricane Wind Scale?The Saffir Simpson Hurricane Wind Scale is scale that classifies wind based on wind speed using a scale of 1-5.
This scale does not take into account wind surge, amount of rainfall and other characteristics of storms.
Storms rated 3 and above are particularly strong and destructive.
Those rated below 3 are mild and less destructive.
Tropical hurricanes or cyclones are usually destructive with great wind speeds of 3 and above according to the Saffir Simpson Hurricane Wind Scale with huge amounts of rainfall resulting in flooding.
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anatomy of a Wave worksheet can someone help me out with the answers????
As horizontal force of 90.0N is required to push a 75.0kg along a horizontal surface at a constant
speed. What is the magnitude of the force of friction?if you answer pls show work thank you
Answer:
90.0N
Explanation:
According to Newtons second law;
F = ma
\sumFx = max
Fm - Ff = max
Given
Moving force Fm = 90.0N
Ff is the frictional force is the mass
ax is the acceleration = 0m/s^2 (constant speed)
Substitute
90 - Ff = 75(0)
90 - Ff = 0
Ff = 90 - 0
Ff = 90.0N
Hence the frictional force is 90.0N
PLEASE HELP ASAP
Name at least two concrete, positive steps you can take to avoid contracting gastroenteritis (in other words, DOs not DON’Ts).
Answer:
Handwashing with soap has been shown to reduce the risk of gastroenteritis by up to 47%.
Of course, avoiding contaminated foods that could harbor toxic bacteria and parasites is also important.
Explanation:
Here's what I found on the web to further explain and give you more info :) , "Vaccinations are also effective, particularly for rotavirus. The rotavirus The use of clean water and good sanitation practices are important for reducing rates of infectious gastroenteritis.
vaccines have seen a marked decline in the rate and severity of disease in both developing and developed countries.
Oral rehydration is the cornerstone of treatment for those suffering from mild to moderate dehydration. This can be achieved through a solution containing water, salts, and sugar. For severe cases of dehydration, hospitalization and intravenous fluids may be required.
Antibiotics are generally not recommended unless the gastroenteritis is bacterial or parasitic and symptoms are severe.
I hope I helped! :)
Would appreciate Brainliest! ;)
A jogger ran 14.8 miles in 98 minutes what is the joggers speed in miles/minutes
Answer:
6.621 minutes per mile
Explanation:
the .621 is repeating
REAL ANSWER = BRAINLIST LOOK AT PICS ATTACHED
Answer:
there are no pictures attached.
As a pendulum swings from the bottom position to the top position
kinetic energy is changed into potential energy
mechanical energy is changed into radiation
radiation is changed into friction
potential energy is changed into kinetic energy
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Power and Energy.
As a pendulum swings from the bottom position to the top position, it gains a height which means it gains the Potential energy.
hence we can say that, kinetic energy is changed into potential energy.
So, the Option A.) is correct.
Answer:
I think it's A)
Explanation:
it could be wrong i don't know hope it's not good luck!
What do hurricanes, tornadoes, and thunderstorms have in common?
Group of answer choices
cold temperatures
low pressure systems
storm surge
precipitation
Answer:
low pressure systems
Explanation:
with a low pressure system over the area the storm can't form
A 7.0 kg box is at rest on a table. The static friction coefficient jis between the box and table is 0.40, and
the kinetic friction coefficient plx is 0.10. Then, a 25 N horizontal force is applied to the box.
What is the best estimate of the magnitude of the box's acceleration?
Round the answer (if non-zero) to two significant digits.
Choose 1 answer:
А
m
23
3.3
32
m
0.37
The best estimate of the magnitude of the box's acceleration is 0.35 m/s².
option D is the correct answer (last option)
What is the magnitude of the acceleration of the box?
The magnitude of the acceleration of the box is calculated by applying Newton's second law of motion as follows;
Mathematically, the formula for Newton's second law of motion is given as;
F (net) = ma
F - Ff = ma
where;
F is the applied force on the boxFf is the force of friction experienced by the boxm is the mass of the boxa is the acceleration of the boxF - μmg = ma
where;
μ is the coefficient of static frictionThe acceleration of the box is calculated as follows;
F - μmg = ma
25 - (0.4 x 7 x 9.81) = 7a
-2.5= 7a
a = -2.5 / 7
a = -0.36 m/s² ≈ -0.37 m/s²
Thus, the acceleration of the box is a function of the applied force and force of friction.
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You are working as an electrical technician. One day, out in CR the field, you need an inductor but cannot find one. Look- ing in your wire supply cabinet, you find a cardboard tube with single-conductor wire wrapped uniformly around it to form a solenoid. You carefully count the turns of wire and find that there are 580 turns. The diameter of the tube is 8.00 cm, and the length of the wire-wrapped portion is 36.0 cm. You pull out your calculator to determine:
a. the inductance of the coil
b. the emf generated in it if the current in the wire increases at the rate of 4.00 A/s.
Explanation:
Given info: The Number of turns in the wire is 580 the diameter of
tube is [tex]8.00 \mathrm{~cm}[/tex] and the length of the tube up to which wire is wrapped is [tex]36.0 \mathrm{~cm}[/tex].
Formula to calculate the inductance of the coil is,
[tex]L=\frac{\mu_{0} N^{2} A}{l}[/tex]
Here,
[tex]L[/tex] is inductance of the coil.
[tex]\mu_{0}[/tex] is the permittivity.
[tex]N[/tex] is the number of turns.
[tex]l[/tex] is the length up to which wire is wrapped.
[tex]A[/tex] is the cross sectional area of the coil.
The expression for the area is,
[tex]A=\frac{\pi d^{2}}{4}[/tex]
Substitute [tex]\frac{\pi d^{2}}{4}[tex] for [tex]A[/tex] in equation (1).
[tex]L=\frac{\left(\mu_{0} N^{2}\right) \frac{d d^{2}}{4}}{l}[/tex]
Substitute 580 for [tex]N, 4 \pi \times 10^{-7}[tex] for [tex]\mu_{0}, 8.00 \mathrm{~cm}[tex] for [tex]d[tex] and [tex]36.0 \mathrm{~cm}[tex] for [tex]l .[/tex]
[tex]\begin{array}{c}
=\frac{4 \pi \times 10^{-7} \times 580 \times 580 \times \frac{x(8.00 \mathrm{~cm} \times 8.00 \mathrm{~cm})}{4}}{36 \mathrm{~cm}} \\
=5.90 \mathrm{mH}
\end{array} [/tex]
Conclusion:
Therefore, the inductance of the given single conductor wire is
[tex]5.90 \mathrm{mH} .[/tex]
Given info: The rate of increasing current [tex]4.00 \mathrm{~A} / \mathrm{s}[/tex] and the inductance of the coil [tex]5.90 \mathrm{mH}[/tex].
The generated emf is,
[tex]
\varepsilon=L \frac{d i}{d t}
[/tex]
Here,
[tex]\varepsilon[/tex] is the generated emf.
[tex]L[tex] is the inductance of the coil.
[tex]\frac{d i}{d t}[tex] is the rate of change of current.
Substitute [tex]5.90 \mathrm{mH}[tex] for [tex]L[tex] and [tex]4.00 \mathrm{~A} / \mathrm{s}[tex] for [tex]\frac{d i}{d t}[/tex]
[tex]\begin{array}{c}
\varepsilon=5.90 \mathrm{mH} \times 4.00 \mathrm{~A} / \mathrm{s} \\
= & 23.6 \mathrm{mV}
\end{array}[/tex]
Conclusion:
Therefore, the generated emf is [tex]23.6 \mathrm{mV}[/tex].
Chlorine gas (Cl2) can be produced using this equilibrium reaction involving gaseous PCl5 and PCl3. Which change would drive this process toward the product side?
PCl5 + energy ⇄ PCl3 + Cl2
A.
Decreasing the temperature
B.
Increasing the pressure
C.
Decreasing the pressure
D.
Removing the PCl5 as it forms
Answer:
C. Decreasing the pressure
Explanation: