Given what we know, we can confirm that when a light wave is refracted, it changes direction.
What is refraction?Refraction is a term used to explain and describe the change in direction of a light wave as it passes through a medium. This change in direction is caused by the change in speed of the light wave entering a new medium.
Therefore, we can confirm that when a light wave is refracted, it changes direction.
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On a warm summer day when the relative humidity is high, it may seem even warmer than the actual temperature. Why do we feel so uncomfortable on these muggy days?
Answer:
Condensing
Explanation:
Water density in the air is too high for condensation to occur and so you feel warm, sweaty, and sticky due to the added moisture on your body.
6. What is the GPE of a 500g box of chocolates 2 m above the ground?
The panel of solar cells transform ______________ energy into electrical energy.
Answer: The panel of solar cells transforms solar or sunlight energy into electrical energy.
Explanation:
The panels take the visible light waves emitted from the sun and convert them into electricity.
Answer:
sunlight or solar it absorb sun energy
how much mass does the sun have? <33
Explanation:
1.989 × 10^30 kg
1.989 × 10^30 kg
People who have color vision deficiency typically lack one or more of the three cones that are sensitive to a particular wavelength. Please select the best answer from the choices provided T F.
The given statement is true. People who have color vision deficiency typically lack one or more of the three cones that are sensitive to a particular wavelength.
What is color blindness?The incapacity to determine the exact shades of color is known as color vision insufficiency. This optical disorder is also referred to as "color blindness," however only a few people are actually color blind.
The sensitivity of color-blind people towards a particular wavelength is high. They are more sensitive to a particular wavelength.
So People who have color vision deficiency typically lack one or more of the three cones that are sensitive to a particular wavelength.
Hence the statement is true.
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4.
Sound waves and ultraviolet light waves both share the property of being able
a. Move through empty space
c. Carry energy
b. Travel at 300,000 m/s
d. Proprogate through rock
- - - - - - - - - - - - - - - - - - - - - - -
Hope this helped :)
~pinetree
What is the mass of an object if a force of 48 Newtons produces an acceleration of 6 m/s2?
Answer:
m = 8 kg
Explanation:
According to Newton's second law of motion, F = ma.
Solving for m using algebra:
m = F ÷ a
m = 48 N ÷ 6 m/s² = 8 kg
witch two conditions would result in the weakness electric force between objects
Answer: the greater the electric force. distance between the charges.
Explanation:
The greater the charge, the greater the electric force. The second factor is the distance between the charges.
An electrostatic force of 9.0 N ??
[tex]\longrightarrow \sf D) 9.0 \times 10^6 N/C [/tex]
Solution:-Given -
force,F = 9.0 NCharge,q = +1.0[tex]\mu[/tex]Force,F on any charge q in electric field,E is given by -
[tex]\green{ \underline { \boxed{ \sf{F = qE}}}}[/tex]
[tex]\therefore \sf E = \dfrac{F}{q} [/tex]
Putting Values -
[tex]\begin{gathered}\\\implies\quad \sf \dfrac{9}{1 \times 10^{-6}} \quad(1\mu = 10^{-6}) \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf 9 \times 10^{6} N/C \\\end{gathered} [/tex]
4. Which of the following is NOT a running/jogging drill?
A. Rope climb
B. Wind Sprints
C. Zigzag drill
D. Agility latter drill
5. A zigzag drill is done by alternately stepping one foot in front of and behind the other foot.
True or False
6. Select the correct answer.
Speed and agility work together for athletes to have an advantage over the opponents in only a few sports.
True or False
Answer:
4. A. rope climb
5. True
6. True
Explanation:
hope it's help
true or false? Sound travels faster trough water than air
Answer:
true
Explanation:
Sound travels faster in water compared with air because water particles are packed in more densely.
Which factors affect the electrical force between two objects?.
Answer:
the distance between the particles and the amount of electric charge that they carried.
Explanation:
hope this helps
Answer: charge and distance between them
Explanation:
What is the solubility of NaCI at 20 degrees?
Answer:
The solubility of sodium chloride in water is 36.0 g per 100 g water at 20°C. The temperature must be specified because solubility varies with temperature. Or 36.0 g per 100 g
Explanation:
Four spheres with positive and negative charges hang from strings.
Which illustration correctly shows how the spheres will behave?
A
B
C
D
The charges may be positive or negative. However, the behavior of the charges depend on the position of like charges and unlike charges.
What is a charge?An electrical charge may be positive or negative. We must recall that a charge may attract or repel another charge. According to the first law of electrostatics, like charges repel while unlike charges attract.
The image is not shown here however, the behavior of the charges depend on the position of like charges and unlike charges.
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[tex]\huge\pink{\boxed{{\colorbox{black}{PLS HELP}}}}[/tex]
Suppose that 100 g of metal gained 110 cal of heat when the temperature is increased form 60°C to 70°C. What is the specific heat of metal?
q=mcΔt
110=100.c.(70-60)
c=0.11
Answer:
110 cal kg⁻¹°C⁻¹
Explanation:
Formula to find the specific heat capacity is :
Q = m c Θ
Here,
Q = heat energy
m = mass
c = specific heat capacity
Θ = change in temperature
Now let us find the specific heat capacity now.
Q = m c Θ
110cal = 1kg × c × (70 - 60 ) °C
110cal= 0.1kg × c × 10°C
110 = 1 c
Divide both sides by 1.
c = 110 cal kg⁻¹°C⁻¹
explain what Is meant by the term potential energy and give four different examples of potential energies?
the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.
A book on a table before it falls.
A child at the top of a slide.
Ripe fruit before it falls.
River water at the top of a waterfall.
How is thermal equilibrium reached? Question 3 options: When both objects have the same temperature When objects have the same mass When objects are both in the same state of matter (solid, liquid, or gas) When objects have different temperatures.
In the thermal equilibrium, the change in temperature is said to be zero in between the bodies. Thermal equilibrium is reached when both objects have the same temperature.
What is thermal equilibrium?Thermal equilibrium is easily explained by the zeroth law of thermodynamics. If any two-body is at thermal equilibrium there is no change in the temperature of the body.
According to zeroth law if body A is in thermal equilibrium with body B and body B is in thermal equilibrium with C . So body A and C are also in thermal equilibrium.
In the thermal equilibrium, the net heat transfer is said to be zero in between the bodies.
Hence option A IS RIGHT. Thermal equilibrium is reached when both objects have the same temperature
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How much force is need
to accelerate a 50 kg
object 20 m/s2?
Answer:
F = 1000 N
Explanation: When calculating force, F=ma.
So...
F = (50)(20)
1000 = (50)(20)
Friends I need the answer for this ?
Answer:
[tex]\small\color{aqua}\tt{{a}}[/tex]
hope it's help
Exercise 3: A van of mass 1200kg was moving at a velocity of 8m/s when it was involved in a head on collision with a lorry moving in the opposite direction. Assuming that the van came to stop after the collision,
We need momentum
mass=1200kgVelocity=8m/s[tex]\\ \rm\Rrightarrow Momentum=Mass\times Velocity [/tex]
[tex]\\ \rm\Rrightarrow Momentum=1200(8)[/tex]
[tex]\\ \rm\Rrightarrow Momentum=9600kgm/s[/tex]
A star is moving away from an observer. Toward which end of the spectrum does its visible light shift?.
Answer:
Redshift, or lower power
Explanation:
doppler effect
waves get stretched when you are moving away from something, and squished when you are moving towards it. Imagine you have a long, bent wire. if you stretch out the wire, the wavelength becomes longer. This also applies to sound.
If we add 50 Joules of thermal energy to a heat engine, and that heat engine does 30 Joules of work, how much thermal energy is left over?
20 Joules
10
None
All of it
Answer:
The correct answer should be
A. 20 Joules
Explanation:
I'm taking the K12 Unit Test: Energy - Part 1 right now
At what point is the speed at a maximum? .
A. Just before the skater reaches the very bottom
B. At the exact bottom
C. A little bit after reaching the bottom
Answer:
B. At the exact bottom
Explanation:
This is because his acceleration is at its max, which means his speed is at a max. HOPE THIS HELPS!
Answer:
B, At the exact bottom
Explanation:
i got it right
A 26.5 kg crate is pushed with a force of 1,893 N, moving the crate a distance of 13.0 m. 579 W of power was used. For how much time was the force applied
Explanation:
[tex]t = \frac{f \times d}{p} [/tex]
t = ?
f = 1893N
d = 13m
P = 579W
t = { 1893×13}/(579)
t = 42.5secs
a certain conductor has a resistnace of 200 ohms. What potential difference is required across the conductor in order to cause a current of 0.5 A to flow through it.
Answer:
100 volts
Explanation:
V= IR
V= 0.5×200
V= 100 volts
A tennis ball has 10 J of energy when it is 1 m above the floor.
Name the store associated with this
energy.
The store associated with the energy when a ball has 10 J of energy when it is 1 m above the floor is gravitational potential energy
What is gravitational potential energy?
Gravitational potential energy is the energy of a body by virtue of its position in the gravitational field.
From the question, If a tennis ball has 10 J of energy when it is 1 m above the floor, first, a work of 10 J was done against gravity to lift the tennis from the floor to a height of 1 m. At the height of 1 m, the work of 10 J is converted to the gravitational potential energy of the tennis ball which is stored in the ball.
Hence, The energy associated when a tennis ball has 10 J of energy and it is 1 m above the floor is gravitational potential energy.
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When energy is added to a wave, how can the wave change? Select all that apply
A The amplitude can increase
B
The frequency can increase
C
The amplitude can decrease.
D
The frequency can decrease
E
The wavelength can increase.
F
The wavelength can decrease.
Answer:
c is the right answer to this
can someone please answer this, ill give you brainliest and your getting 100 points.
Answer:
Social cost is the answer
:D let's hope that helped
Explanation:
Dr. Cronbach wants to be sure that his assessment of neuroticism measures the same way each time he uses it. Which aspect of assessment is Dr. Cronbach primarily concerned with?
The aspect of assessment that Dr. Cronbach is primarily concerned with is the internal consistency.
Reliability assessmentA reliability assessment is a tool that is used to evaluate the consistent performance of an individual or an instrument.
When this assessment is carried out in such a way that the instrument gives the same result each time it is used, the internal consistency is being considered.
Therefore, the aspect of assessment that Dr. Cronbach is primarily concerned with is the internal consistency.
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Billy pushes a supermarket cart with a constant force F. Every time he adds groceries to the cart, the weight of the cart increases. Billy adds groceries until the cart is filled. How do the groceries affect the carts acceleration if the force billy used to push the filled cart is the same force he used to push the empty cart?
Answer:
The groceries will decrease the cart's acceleration.
Explanation:
more force is required to push the full cart than the empty cart.