Answer:
Input work is the work done on a machine as the input force acts through the input distance. This is in contrast to output work which is a force that is applied by the body or system to something else. Output work is the work done by a machine as the output force acts through the output distance, hope that helped
.
Explanation:
How much time does it take to change the momentum by 350 Ns with a 15 N force?
I don't know what kind of wave this is.... My bad
Answer:
Compresion wave
Explanation:
New seafloor is being created at point ______________.
1. X
2. Y
3. Z
4. None
Answer:
Point x I think
Explanation:
Khaled said the North star is special because it appears all over the world and its changes position.
a. false
b.true
Wave 1
a) How many waves are there in this wave train?
b) Wavelength cm c) Amplitude
cm
Answer:
see below
Explanation:
a wave means one complete wave which is 1 period
so a) 5 complete waves
wavelength is the shortest distance between any two points in phase
so wavelength = 1 CM
amplitude of a wave is the maximum displacement of a particle from its rest position
so amplitude = 3 CM
hope this helps
PLEASE HURRY!!!
A car accelerates from 15 km/hr to 60 km/hr in 30 seconds what is the acceleration?
Acceleration = (change in speed)/(time)
Change in speed = (60-15) = 45 km/hr
Time for the change = 30 sec
Acceleration = 1.5 km/hr-sec
List some endurance training exercises.
Answer:
•Walking briskly
• Running /jogging
•Dancing
•biking
I need help with thissss
Explanation:
back ground radiation is a natural radiation so basically everything emits background radiation. so if it were harmful, the world wouldn't be here,
so it is false
it knocks electrons out of atoms, this is because ionising radiation is a radiation that had enough energy to remove electrons form the atoms and molecules.
true because exposure to radon can damage biological molecules such as proteins, which leads to abnormal patterns of cell division, which leads to cancer.
hope it is helpful, if not , you can report and let someone else try it out.
do vote, thank you
The law of conservation of energy only applies to what type of
systems?
all systems
open systems
closed systems
System of the Down
What are the dangers of a hurricane and how do you stay safe during the hurricane?
Answer:
go to the vault
Explanation:
When a substance freezes, its atoms become locked in place so they do not move from one position to another. Therefore, any substance that is frozen is a
plasma.
gas.
liquid.
solid.
When a substance freezes, its atoms become locked in place so they do not move from one position to another. Therefore, any substance that is frozen is a solid. Hence, option (D) is correct.
What is solid?One of the four basic states of matter is solid (the others being liquid, gas, and plasma). The least solid molecules are those that are tightly packed together and make up solids.
A solid is distinguished by its structural rigidity and resistance to external forces. A solid substance, unlike a liquid, does not flow to conform to the shape of its container or, like a gas, expand to cover the entire space. A solid's atoms are connected to one another either in a regular geometric lattice (such as that found in metals and common ice), or in an asymmetrical manner (an amorphous solid such as common window glass).
Therefore, any substance that is frozen is a solid.
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What helps a race car to not slide all over the race track?
Answer: Gently reduce pressure on brakes – if on ice, push in the clutch to let the wheels turn freely.
Turn the steering wheel quickly – look and steer in the direction you want to go.
Counter-steer – as the vehicle gets back on course, counter-steer to avoid skidding in the opposite direction.
Explanation:
What type of force causes your car to move?
Answer:
frictional force
Explanation:
Helpp!! Pick all the apply
Answer:
extension at the elbow, abduction of the shoulder
Explanation:
i think thats it im not sure hopefully it helps
An open pipe on an organ creates
a fundamental frequency at
10500 Hz. How long is the pipe?
Answer:
L = 1.61 cm
Explanation:
The frequency of open organ pipe is given by :
[tex]f=\dfrac{nv}{2L}[/tex]
Where
n = 1 for fundamental frequency
f = 10500 Hz
L is the length of the pipe
v is the speed of sound, v = 340 m/s
So,
[tex]L=\dfrac{nv}{2f}\\\\L=\dfrac{1\times 340}{2\times 10500 }\\\\L=0.0161\ m\\\\or\\\\L=1.61\ cm[/tex]
So, the length of the pipe is 1.61 cm.
Answer:
0.0163
Explanation:
acellus
A truck has a velocity of 25 m/s and a momentum of 25.000 kg*m/s. What is its
mass?
Answer:
1000kg
Explanation:
We can use the equation "p=mv"
p is the momentum in kg m/sm is the mass measured in kgv is the velocity measured in m/sIf we rearrange the equation to find mass (m), then the equation becomes:
m=p/v
We can substitute in the values of p and v as they are already given in the question.
p=25,000 kg m/sv= 25 m/sSo, now we just substitute in the values to get our answer.
m=p/v
m=25,000/25
m=1000kg
What is the mass of an object that requires 150N of force in order to accelerate it at 10m/s 2
Answer:
15kg
Explanation:
Acceleration = 10 m/s^2
Force = 150 N
Force = mass * acceleration
mass = force / acceleration
mass = 150 / 10
mass = 15 kg
Name two careers that use gravity as the main part of the job.
Answer:
:Meterology, Seismology,
Find the horizontal magnitude of a velocity vector of 125 m/s at an angle of 70°.
______ m/s (round to tenths place)
Answer:
please find attached file
Explanation:
Pls help. Due in 20 minutes!
Answer:
Explanation:
Remark
Let's start with the second question first. If the two forces aren't balanced, the truck will move in some direction. So the downward force of the truck must equal the upward force provided by the pavement pushing up.
Mass of truck = 9500 kg. Remember mass is directionless and it is not a force or weight. That truck would have a mass of 9500 kg anywhere in the universe.
Givens
m = 9500
a = 9.8
Force or weight = ?
Formula and Solution
F = m * a
F = 9500 * 9.8
F = 93100 N
Comment
That force does have a direction. It is down.
The balancing force (you call it the reaction force) going upward is 93100 N
ii) One of the containers is wide and shallow. The other container is narrow and deep
Predict which container has the greater rate of cooling. Explain your answer.
an objest with the mass of 2 kg is accelerated at 4 m/s2. the net force acting on the object is
a) 2N
b) 20N
c) 5N
d) 10N
HELP I GIVE BRAINLIST
which of the following is a abiotic factor ?
A ) pH level of water
B ) Coral Reef
C ) fish
D ) seaweed
Answer:
it's A
Explanation:
it's A because the ph level of water is just the level of the water if it's acidic or just a base
Which type of radio broadcast has a greater broadcast range, AM or FM? Explain.
What is the car's average velocity between "O" and "A"
Explanation:
incomplete question graph / fig is not available
explain Newtons Laws
1) Newton first law of motion: state“If a body is at rest it reamain at rest and if it is in a motion it continu its motion unless a net external force acting on it”
This law also called law of inertia
2) Newton second law of motion: states that ‟acceleration to the force acting on the body and inversky proportional to the mass of the body”
3) Newton's third law of motion: It is not possible to exert a force abody with out the body exerting a forces in the opposite direction.
These forces are called action and reaction forces
hope it's helpful ❤❤❤❤❤❤
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Which moon phase comes before the phase in this picture?
Momentum/Impulse Test- Physics
Name
Momentum: p = mv Change in momentum: Ap = m(vrv.) Impulse: J = Fat Fat = m(vrv)
Elastic collsions: m,Vu+m;V;= m Va+m_V21
Inelastic collisions: m, Vy+m V2 = (m+m),
1. Which object would have the least momentum? Which object would have the most momentum
A. 10Kg object moving at 40m/s
C. .1Kg object moving at 1000m/s
B. 2kg object moving at 100m/s
D. 800Kg object moving at 1m/s
2. Impulse is defined as
A. the change in momentum
B. force multiplied by the change in time
C. the change in velocity
D. both A and B
E. A, B, and C
3. You stick a firecracker between two empty coke cans, each with mass .01kg, and explode it. What is the
total momentum of the system after the collision?
A. 1000 kgm/s
B. Not enough information to tell
C. Depends on the size of the firecracker
D. The answer is 0. Choose this one; none of the other answer choices are correct!
Answer:
Thats a lot, good luck!<3
an EM wave has a speed of 3 x 10^8 m/s and a frequency of 5.0 x 10 ^7 Hz. what is the wavelength of the EM wave
0.17m
1.5 x 10 ^ 16m
6.0m
0.06 m
30 POINTS
Answer:
i think it is 0.06 but im not sure sorry if im wrong
Explanation:
Please help :)
Work out the current through a television with a power of 0.8kw if it uses 230v mains supply. Give your answer to 1 decimal place.
Answer:
3.5 A
Explanation:
Current [A] =Electrical power [W] ÷ Potential difference [V]
KW TO W = ×1000
hence,
800W÷230V= 3.5A (1 d.p)
The current through a television with a power of 0.8kW if it uses 230V mains supply is 3.5A
Current is as a result of the flow of electrons through a conductor.
Voltage is the difference in potential between two points.
Power is the product of current and voltage. It is given by:
Power(P) = Current(I) * Voltage(V)
Given a power of 0.8 kW = 800W, V = 230 V. Hence:
P = IV
800 = 230I
I = 3.5A
The current through a television with a power of 0.8kW if it uses 230V mains supply is 3.5A
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