Answer: drying towels at the beach.
Explanation:
Radiation simply has to do with the energy that is gotten from a particular source and then goes through some materials. It simply means the way energy is being transmitted as waves or heat through a certain medium.
From the options given, the scenario whereby a radiation takes place is when drying towels on the beach.
Answer:B-drying towels at the beach
Explanation:
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
Standing passengers on trains often hold on to rails or handles because as the train starts and stops their bodies want to stay at rest or in motion. This is all due to ______
a
Newton's 3rd Law of motion that for every action there is an equal and opposite reaction
b
Newton's 2nd Law of motion that an object at rest stays at rest or in motion until acted on by an unbalanced force
c
Newton's 1st Law that an object in motion stays in motion and an object at rest stays at rest until acted on by an unbalanced force
d
Newton's 1st Law that motion only exists in friction less environments.
Explanation:
Newton's 2nd law of motion..option b
A wave can travel through a solid, liquid or gas or no matter at all
True or false?
If you had a accident and could no longer speak what part of your brain might of been damaged?
Answer:
Thus, damage to the right side of the brain may cause movement problems or weakness on the body's left side. For most people, the left half of the brain is responsible for verbal and logical functions including language (listening, reading, speaking, and writing), thought and memory involving words.Explanation:
Carry on learning
why are north and south poles important to magnets
Answer:
All magnets have north and south poles. Opposite poles are attracted to each other, while the same poles repel each other. When you rub a piece of iron along a magnet, the north-seeking poles of the atoms in the iron line up in the same direction. The force generated by the aligned atoms creates a magnetic field.
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Calculate the speed of a dolphin that is observed swimming 75 meters in 5.0 seconds.
Answer:
15 meters/second
Explanation:
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:
you push a freezer with a force of 250 N. if you move it a distance of 15 m, how much work was done?
Answer:
375J
Explanation:
W=F x d
=250 x 15
=375J
The work W is equal to the force f times the distance d, or W = fd, to mathematically describe this idea. If the force is applied at an angle to the displacement, the work is W = fd cos.
What force is related to work done?Work in physics is the energy that is transferred to or from an item when a force is applied along a displacement. In its simplest form, For a constant force that is oriented in the same direction as the motion, it is easiest expressed as the product of the force's magnitude and the distance travelled.
A desk is being subjected to applied force if someone is pushing it across the room. The person's force applied to the desk is known as the applied force.
Mass and weight are not the same.The normal force is the supporting force exerted on an object when it collides with another stable object.
Therefore, W=F × d =250 × 15 =375J
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The photograph shows one of the boats in a science club's toy boat race. All the boats were powered by identical
rubber bands. Judges used stopwatches to time how long each rubber band took to unwind. The table shows some
of the data the judges collected.
Answer: Boat P
Explanation:
Multiple all of them mass times acceleration and which ever one was the greatest was the answer. Which was Boat P 0.2436
The minimum time taken to unwind the rubberband is by boat P.
The highest amount of force to unwind the rubberband is generated by boat P.
Force, Mass and AccelerationThe table shows all the mass, acceleration and time of each boat. To unwind the rubber band, the required force can be calculated as given below.
Force = Mass [tex]\times[/tex] Acceleration
For boat N, force is [tex]f_n = 0.125\times 1.6 = 0.2 \;\rm N[/tex]
For boat P, force is [tex]f_p = 0.116\times 2.1 = 0.24 \;\rm N[/tex]
For boat Q, force is [tex]f_q = 0.130\times 1.0 = 0.13 \;\rm N[/tex]
For boat R, force is [tex]f_r = 0.118\times 1.8 = 0.21 \;\rm N[/tex]
Hence we can conclude that the highest amount of force to unwind the rubberband is generated by boat P.
To know more about the force, follow the link given below.
https://brainly.com/question/26115859.
Para el siguiente conjunto de medidas, calcule EL ERROR RELATIVO PORCENTUAL: 1.34 m, 1.35 m, 1.37 m y 1.36 m
Answer:
Ver explicacion abajo
Explanation:
En este caso para poder calcular el error relativo porcentual, es necesario calcular primero el error absoluto, que se calcula de la siguiente forma:
Error absoluto = Resultado exacto - aproximación
Sin embargo, no tenemos el resultado exacto de las medidas, pero podriamos conocerlo tomando el promedio de estas medidas y este es el que tomaremos como el verdadero resultado de las medidas:
Promedio de medidas = 1.34 + 1.35 + 1.37 + 1.36 / 4
Promedio de medidas = 1.355 m
Ya que tenemos el promedio, podemos calcular el error absoluto de cada medida y luego el error relativo porcentual:
Ea1 = 1.355 - 1.34 = 0.015
Ea2 = 1.355 - 1.35 = 0.005
Ea3 = 1.37 - 1.355 = 0.015
Ea4 = 1.36 - 1.355 = 0.005
Ya que tenemos los 4 errores absolutos, es posible calcular el porcentual:
%error relativo = (Error absoluto / resultado exacto) * 100
Aplicando la expresión con cada uno de los valores tenemos:
%Er1 = (0.015/1.34) * 100 = 1.12%
%Er2 = (0.005/1.35) * 100 = 0.37%
%Er3 = (0.015/1.37) * 100 = 1.09%
%Er4 = (0.005/1.36) * 100 = 0.37%
Espero que te sirva.
A7 lb bowling ball accelerates at a rate of 7 m/s2. If the net force on the bowling ball is
tripled, what will be its new acceleration? (1 point)
a. 2.3 m/s2
b. 7 m/s2
c. 14 m/s2
d. 21 m/s2
Answer: c
Explanation:
If the net force on the bowling ball is tripled, its new acceleration is 21 m/s². The correct option is d.
What is force?The force is the action of push or pull which can move or stop the object.
The initial force is F = mass x acceleration
F = 3.17515 kg x 7 m/s²
F = 22.23 N
When the net force is tripled, the new acceleration will b e
3 x F =m x a'
3 x 22.23 = 3.17515 x a'
a' = 21.003 m/s²
Thus, the new acceleration is 21 m/s². The correct option is d.
Learn more about force.
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Which moon phase comes before the phase in this picture?
What is the smallest, most basic level of organization in an animal or
plant?
Answer:
hhmmmmmhmmmm hmhmmmm hmmm yeah i got nothing
Explanation:
Which explanation BEST supports Newtons second law of motion
Answer:
c
Explanation:
because newton's second law states that F= MA
which suggests that if M increases, F also increases which is the force,
let me give you a tip, during exam, just type any random numbers into the formula, like at first you type 5 into the M, then increase M, by putting 10 into the M , keep the acceleration the same for this, okay?
you will see that the force will increase,
by this I mean that option says largest mass, so the force will also be very big because in reality do you use more force on heavier box or a lighter one to push it across the room?
so larger mass, larger force, greater acceleration
but the question is not being clear, whether to the force remains constant for every object, if it does then A is false . and B is false because if the forces is constant, and it is light, it would require a small amount of force ,
but the other options, gave us a clue about the force so you can choose either c or d but see the explanation above,
the only corrext option will be c.
if not, please report this, someone will have a go at it
:) byeee
A negative charge of -3.0 x 10^-5 C is placed 0.35 m from a positive charge of 9.0 x 10^-5 C. What is the force between the two charges
Answer:
the force between the two charges is 198.37 N
Explanation:
Given;
charge of the first particle, Q₁ = -3 x 10⁻⁵ C
charge of the second particle, Q₂ = 9.0 x 10⁻⁵ C
distance between the two charges, r = 0.35 m
The force between the two charges is calculated from Coulomb's law;
[tex]F = \frac{kQ_1Q_2}{r^2}[/tex]
where k is Coulomb's constant = 9 x 10⁹ Nm²/C²
[tex]F = \frac{(9\times 10^9)(3.0\times 10^{-5})(9\times10^{-5} )}{0.35^2} \\\\F = 198.37 \ N[/tex]
Therefore, the force between the two charges is 198.37 N
If 45,000 Joules of work done in 90 seconds results in how much power?
Which waves have oscillations parallel to their direction of motion
Answer:
The direction of these oscillations is the difference between longitudinal or transverse waves. In longitudinal waves, the vibrations are parallel to the direction of wave travel. In transverse waves, the vibrations are at right angles to the direction of wave travel.
Explanation:
The waves that contains the oscillations parallel to their direction of motion should be considered as the sound waves from stereo speaker.
What are sound waves?A sound wave is the wave that shows the disturbance patterns that should be lead by the movement of the energy that should be travelled via the medium like air, water, since it should be propagated away from the sound source.
Therefore, The waves that contains the oscillations parallel to their direction of motion should be considered as the sound waves from stereo speaker.
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A person drops a ball off the top of a 10 story building. What statement below best describes the movement of the ball?
Most helpful Answer~
There are no options~
Anyway If the ball is of bad quality it will get deflated/ or strike out.
' The must reasonable thing that could happen is that the ball will bounce'
*Smile* :)
Calculate acceleration of a turtle going from 0.3 m/s to 0.7 m/s in 30 seconds.
Answer:
acceleration = 0.013 m/s²
Explanation:
formula for acceleration is
a = (v-u) / t
a= (0.7-0.3) / 30
= 0.013
The acceleration of a turtle going from 0.3 m/s to 0.7 m/s in 30 seconds is 0.0133m/s²
Acceleration is defined as the change in velocity of a body with respect to time. Mathematically:
[tex]a=\frac{v-u}{t}[/tex]
v is the final speed = 0.7m/s
u is the initial speed = 0.3m/s
t is the time taken = 30seconds
Substitute the given values into the formula:
[tex]a=\frac{0.7-0.3}{30}\\a=\frac{0.4}{30}\\a = 0.0133m/s^2[/tex]
Hence the acceleration of a turtle going from 0.3 m/s to 0.7 m/s in 30 seconds is 0.0133m/s²
Learn more here: https://brainly.com/question/20982904
Every force applied to an object will cause the object to move.
Answer:
Yes your correct.
Explanation:
A boiler is being used to heat water. The graph shows the temperature of
the water every 5 minutes.
a. What state is the water in between points Q and R?
b. At which point does the water begin to boil?
c. What state is the water in at 110°c?
Answer:
a. Liquid state
b. At point R. The physical state of water at its boiling point temperature of 100 degree Celsius will be both liquid state as well as gaseous state.
c. at 110 degrees it is in gaseous state
You skip north for 12 minutes to your best friend's house that is 1.5 kilometers away. What is your average velocity?
Answer:
The average velocity is 7.5 km/h
Explanation:
Were Gonna convert minutes to hours
12 minutes = 12/60 hours = 0.2 hours
Now we estimate the average velocity of the distance traveled over this time
1.5 / 0.2 km/h = 7.5 km/h
What type of force causes your car to move?
Answer:
frictional force
Explanation:
why would you want to know the speed of an object
Answer:
Because when something is moving such as a car if your going too fast there could be a crash or collision.
Explanation:
What kind of injuries may affect a person's stability?
plz help me
Explanation:
a brain injury, a concussion, spinal cord injury, and a repetitive strain injury
Why does the Ring of Fire have SO MUCH earthquake/volcanic activity?
It is closer to the center of the Earth.
More people live here.
There is a lot of plate movement)
HELP ME PLS AM IN A TEST I BEG YOU PLS
Answer:
Many volcanoes in the Ring of Fire were created through a process of subduction. And most of the planet's subduction zones happen to be located in the Ring of Fire. Subduction happens when tectonic plates shift, and one plate is shoved under another.
Explanation:
What are the dangers of a hurricane and how do you stay safe during the hurricane?
Answer:
go to the vault
Explanation:
A man walks 200m for 10s to the west then continue in the same directions for another 100m for another 10s. what is the velocity of the man?
Answer:
15m/s
Explanation:
velocity = displacement/time
= (200+100)/20 = 300/20 = 15m/s
TIME REMAINING
03:53:22
Which two factors are used to calculate the kinetic energy of an object?
O gravity and velocity
O velocity and mass
mass and volume
O volume and height
Answer:
velocity and mass
Explanation:
discuss how changes in Earth's surface characteristics and/or atmospheric composition could contribute to global warming or cooling.
Please help me answer this, I'm so clueless!
Answer:
More carbon dioxide or greenhouse gases in the atmosphere can lead to global warming. Oceans store a large amount of heat, and increases in sea surface temperature can increases the amount of water vapor over the oceans, and that will increases the amount of greenhouse gases.