Answer:
120
Explanation:
lambda = 12
f=10
10×12=120
A bus as speed of 20m/s begin to slow at constant acceleration of 8.00m/s2 along a straight line find the average speed for the 5al.S interval
Answer:
the final velocity of the bus is -20 m/s.
Explanation:
Given;
initial velocity of the bus, u = 20 m/s
deceleration of the bus, -a = 8 m/s²
time of motion, t = 5 s
The final velocity of the bus is calculated as;
v = u + at
v = 20 + (-8 x 5)
v = 20 - 40
v = -20 m/s.
Therefore, the final velocity of the bus is -20 m/s.
what is the velocity of a 1200 kg boat with a kinetic energy of 160,000 J
study the symbol below .draw it your answer sheet and then the question that follow.
1.what does the symbol suggest?Explain.
2.which 3R`s should be done first and the most often:Reduce and Reuse or Recycle?which follows next and which should be done last
Answer:
Part A
Please find attached the required drawing created with Microsoft Visio
Part B
1. The symbol (from a similar question) suggest the steps used to conserve resources
2. i) Reduce
ii) Reuse
iii) Recycle
Explanation:
1. The symbol suggests that in order to maintain sustainable use of our natural resources we can conserve them reducing waste, making use of reusable products, and recycling items to produce new items
2. i) The conservation step to be done first in the 3R's is Reduce
The natural resources can be conserved by reducing the amount of waste produced and also reducing the usage of non renewable natural resourced
ii) The next conservation step is to follow after it is no longer possible to reduce wastage is Reuse
There are several items that can be made use of for other purpose after they have been used including, water, bags for shopping, reusable nose masks
iii) The item which should be done last is Recycle
To recycle is to process used materials to create other items which can then be used as new items
Examples include;
Iron, Plastics, glass, paper, tires, and electronics
Which of the following are global winds?
O jet streams, trade winds, and Coriolis effect
O jet streams, polar easterlies, and trade winds
jet streams, sea breezes, and trade winds
O jet streams, breezes, and Coriolis effect
The correct and is A or jet streams, trade winds, and Coriolis effect
Answer:
2. Jet streams, Polar Easterlies, and Trade winds
Explanation:
It isn't one because the Coriolis effect is an effect or something that causes something else. (it causes things to curve like other winds and stuff) Not three because Sea breezes are winds that travel short distances, occur at night, at the beach, Not for because it also has Coriolis effect and it also has breezes for some reason. So, your answer will be 2.
Hope this helped!
Stay safe!
Hurry need help ASAP
Answer:
last one
Explanation:
1. What is the kinetic energy of a 94 kg basketball player running at 7.3 m/s?
2. What is the velocity of a truck that has a mass of 2288 kg and 432,000 J of kinetic energy?
The resistance to the motion of an object is
Answer:
Inertia
Explanation:
Part of Newton's Laws of Motion
PLEASE HELP!!!!
An electron is located 4.22 mm away from an isolated proton. If the distance between the two particles is increased to 8.44 mm, what
happens to the electrical potential energy of the electron and why?
O A. The electrical potential energy will increase because work must be done to separate two particles that attract one another.
B. The electrical potential energy will remain the same because the electron and proton are both fundamental particles and their
charge cannot be changed.
O
C. The electrical potential energy will increase because larger energies are associated with greater distances.
O D. The electrical potential energy will decrease because no work is necessary to increase the distance between particles that
demonstrate attraction.
You can download answer here
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If the distance between the two particles is increased to 8.44 mm, the electrical potential energy will increase because work must be done to separate two particles that attract one another. Hence option(A) is correct.
What is potential energy?Potential energy is the energy held by an object as a result of its position relative to other objects, internal stresses, electric charge, or other factors.
The gravitational potential energy of an object, the elastic potential energy of an extended spring, and the electric potential energy of an electric charge in an electric field are all examples of common types of potential energy. The joule, denoted by the symbol J, is the unit of energy in the International System of Units (SI).
The positive and negative charges attract each other, so work must be done to separate two particles. Hence, the electrical potential energy will increase.
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Is this right?? Please help me. IT IS SOCIOLOGY!
I NEED HELP ASAP
A worker sits at one end of a rod that is 2.80 m long. A weight of 107 N is placed at the other end of the rod. The rod is balanced when the pivot is 0.670 m from the worker.
Answer:
Let the weight of the worker represented by X newton there is a normal force exerted at a distance of 0.67 cm
Explanation:
The weight of the worker which is at a balanced state when the pivot is 0.670 m from it is 447.1 N.
What is Torque?
Torque is a twisting force which speaks to the engine's rotational force and it also measures how much of that twisting force is actually available when an engine exerts itself.
For equilibrium , net torque = 0
Taking clockwise direction positive,
W × (-0.670) + 107N × 2.80 = 0
W × (-0.670) = -299.6
W = -299.6/ -0.670
W = 447.1 N
Therefore, the weight of the worker is 447.1 N.
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Your question is incomplete, most probably the complete question is:
A worker sits at one end of a rod that is 2.80 m long. A weight of 107 N is placed at the other end of the rod. The rod is balanced when the pivot is 0.670 m from the worker. Calculate the weight of the worker.
If I was floating in space, why would a scale read my weight as "0"?
Answer:
No external contact force.
Explanation:
Mass is defined as the amount of material an object contains, that doesn't change whether the object it on earth, on the moon or anywhere in space. Except the only force that is acting upon the body in gravity and they don't feel gravitational attraction towards the earth.
Which of the following elements is NOT considered a halogen?
-Bromine (Br)
-Chlorine (Cl)
-Fluorine (F)
-Argon (Ar)
Answer:
Argon
Explanation:
Halogens are elements within group 17 on the periodic table. As argon is in group 18, which means it is a noble gas. Bromine, chorine, and flourine are all in group 17, making them halogens.
Can someone pls help me with this?
Answer:
17 - length of the fork
18 - number of turns
19 - material of the fork
Explanation:
it's a quarter and a half basically an amount of it it's actually the measurement of your actually doing and the size and the programs and you should basically do the l up and the l down just another kid information from it so this is what it goes from
Which statement best explains the difference between greenhouse gases and other atmospheric gases?(1 point)
Greenhouse gases trap thermal energy and reflect the sun’s harmful radiation back to Earth.
Greenhouse gases allow thermal energy to pass through the atmosphere and back out into space.
Greenhouse gases reduce the amount of natural resources on Earth.
Greenhouse gases account for the direction in which water and air move.
Greenhouse gases trap thermal energy and reflect the sun’s harmful radiation back to Earth is the answer
im not 100% sure tho
hope it helps:))
is corona the least dense layer in the sun? please fast
Answer:
the Corona is about 10 million times less dense than sun's surface.this low density makesuch less bright than surface of the sun
Answer:
dude the ans no corona,
Explanation:
It cannot survive in space let alone be one of the layer of the sun due to its high temperature ( that is 2million fahrenheit )
PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (40pts)
Answer:
Ok
Explanation:
Speed
Which parts of the electric circuit considered as fuse
Answer:
Rewirable or Kit – Kat Type Fuses are a type of Low Voltage (LV) Fuses. They are most commonly used in house wiring, small industries and other small current applications. Rewirable Fuses consists of two main parts: a Fuse Base, which contains the in and out terminal, and a Fuse Carrier, which holds the Fuse Element.
https://youtu.be/f_kgUUaMZlw
why is the sun considered as the prime source of heat energy ?
Answer:
The Sun is the Ultimate Source of Energy. Every morning the sun rises, bringing light and heat to the earth, and every evening it sets. ... Plants convert light energy from the sun into chemical energy (food) by the process of photosynthesis. Animals eat plants and use that same chemical energy for all their activities.
Apart from physical factors, what other environmental factors are in your environment?
Answer:
Explanation:
Factors which affects and impacts our environment may include water, sunlight, buildings and so many other. The factors which can touched are called the physical factors. The physical factirs include buildings, humans and so on. Other factirs which aren't physical inckide the the effects posed to the environment t by biological and chemical factirs which may include, the impacts in sunlight and Rainfall, the pH and so on.
Which object has the most thermal energy?
A. A 10 kg rock at 10°C
B. A 6 kg rock at 15°C
C. A 10 kg rock at 15°C
D. A 6 kg rock at 10°C
Answer:
10 kg rock at 15 degrees
Explanation:
did test
HELP MEEEEEEEE PLEASEEEE
A) Compare the difference in the forces of impact for each of two helmets dropped form the same height in figure 2 and explain what this
difference suggests about the amount of time the force is applied to each helmet during the collision. Keep in mind that each helmet has
the same mass and that the crash pads slow down the helmets as they hit. You may use equation Fat mavto support your answer.
B) Explain why the relationship between force and time is important to a helmet designer.
During a collision, a skater will suddenly come to a complete stop. This is a foam of acceleration. A helmet can change the amount of
acceleration and the amount of force that a skater experiences during a collision
C) Compare two helmets in figure 3 and explain how helmet shape changes both the force and the acceleration on a skater's head, as the
skater hits the wall of the rink, using the formula Fema.
BI
SS.
Answer:
B Explain why the relationship between force and time is important to a helmet designer.
During a collision, a skater will suddenly come to a complete stop. This is a foam of acceleration. A helmet can change the amount of
hope you get a good grade
Using the diagram below, identify the correct chemical formula for the molecule shown.
Answer:
is the firts one because i due it in jannuary i will know all answer
Explanation:
How is the velocity of a wave affected by its frequency, wavelength, and period?
Answer:
I can only explain using the formula
Explanation:
v=f
[tex]v = f \times lamda[/tex]
v is velocity
f is frequency
lamda is wavelength ( I don't have the symbol)
therefore velocity is the product of frequency and wavelength
And since period is the inverse of frequency;
Period (T)=1/f
so we can have v=lamda/T
That's what I think
An unknown element has 5 protons, 5 electrons, and 6 neutrons what is the atomic mass of this element
Answer:
Atomic mass 5
Explanation:
No. protons=Atomic mass
what causes mechanical waves?
1. What is a cast? How is a cast formed?
Answer:
a cast is something that holds a item in place weather it be a iron sword or a broken arm. a cast is made by hollowing out the inside and placing your item in it.
Explanation:
Which statement about the carbon cycle is most true?
A. Energy is destroyed when organic matter decays.
B. The total mass of carbon on Earth is always increasing.
C. Carbon is lost from the cycle when it enters the atmosphere.
D. Carbon changes form, but the total amount on Earth remains the same
How does a parallel circuit change when a branch is added? The total resistance increases, so the current in the circuit decreases. The total resistance decreases, so the current in the circuit increases. The total resistance increases, so bulbs shine at a lower brightness. The total resistance decreases, so bulbs shine at a higher brightness.
Answer:
i know i'm way late. i'm so sorry but the answer is b not c. i just took the test and got 90% this one is wrong. it's B
Explanation:
just took the test.
hope this helps!
have a good day/ night
When a branch is added to a parallel circuit, the total resistance decreases, so the current in the circuit increases.
What is meant by a parallel circuit ?A parallel circuit is defined as the type of circuit in which the resistors are connected in parallel such that the current flowing through each of them is different.
Here,
The given circuit is connected in parallel combination of resistors. The current has different pathways to flow through. The voltage applied across each resistors will be the same.
Consider a parallel resistance circuit having a combination of n number of resistors with resistance R. The effective resistance of the parallel circuit can be given as,
1/Reff = 1/R₁ + 1/R₂ + 1/R₃ +....1/Rₙ
Since, the resistance is same on all resistors, we can write,
Reff = R/n
So, when adding a branch, the number of resistors, n increases. As a result, the effective resistance of the circuit decreases.
According to Ohm's law, as the resistance of a circuit decreases, the flow of current through the circuit increases.
Hence,
When a branch is added to a parallel circuit, the total resistance decreases, so the current in the circuit increases.
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I'll mark brainliest if you help me. :)
Answer:
gravitational potantional energy
Explanation:
ill try to link a source!
edit: https://flexbooks.ck12.org/cbook/ck-12-middle-school-physical-science-flexbook-2.0/section/14.3/primary/lesson/potential-energy-ms-ps#:~:text=Potential%20energy%20due%20to%20the,is%20called%20gravitational%20potential%20energy.
A 40 kg shell is flying at a speed of 72 km/h. It explodes into two
pieces and one piece with a mass of 15 kg stops. The velocity of the
other piece will be 32 m/s.
true or false?
Answer: This is true
Explanation: v2=800/25= 32m/s