Answer:
technician A is right
Explanation:
Daytime running lights are auxiliary lights that allow other cars to see us better. They are not intended to illuminate the road, so their intensity is low.
Consequently technician A is right
HID lights are high intensity lights, generally bluish-white in color, yellow lights are halogen lights with lower intensity than HID lights.
Consequently, technician B is wrong
Two identical balls are thrown from the top of a cliff, each with the same speed. One is thrown straight up, the other straight down. How do the kinetic energies and speeds of the balls compare as they strike the ground?
A) The ball that is thrown straight up will have more kinetic energy but less speed than the ball that is thrown straight down.
B) The ball that is thrown straight up will have more kinetic energy and more speed than the ball that is thrown straight down.
Both balls will have the same kinetic energy and speed.
C) The ball that is thrown straight up will have more kinetic energy but less speed than the ball that is thrown straight down.
D) The ball that is thrown straight down will have more kinetic energy and more speed than the ball that is thrown straight up.
Answer:
the answer is B.
Explanation:
The ball that is thrown straight up has more kinetic energy and more speed than the ball that is thrown straight down. Both balls have the same kinetic energy and speed.
What is the kinetic energy and potential energy?The kinetic energy of a body can be determined as the energy of a moving physical system because of its motion. Work has to be done on an object to change its kinetic energy.
The kinetic energy of the moving system can be expressed as K.E. = ½mv² where ‘m’ is mass while ‘v’ is the velocity of the object.
The potential Energy of the physical system can be described as the energy stored due to its position. The mathematical formula for the calculation of the potential energy can be expressed in the form of P.E = m×g×h where ‘g’ is the gravitational acceleration, ‘m’ is the mass and ‘h’ is the height in meters
When two identical balls are thrown from a cliff, each with the same speed. One ball is thrown straight up, and the other ball is straight down. Both balls will have the same kinetic energy as well as speed.
Learn more about kinetic energy and potential energy, here:
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speed of light in air is 3 x 10 m/s, determine the speed of light in the glass fibre.
5. How many kilowatt-hours of energy would be used by a 40 W bulb that runs for 10 hours every
day during the course of one year?
Answer:
E = 0.4 kWh
Explanation:
Given that,
The power of a bulb, P = 40 W
Time, t = 10 hours
We need to find the energy used by the bulb. Let it is equal to E. So,
[tex]E=P\times t\\\\E=40\times 10\\\\E=400\ W-h\\\\or\\\\E=0.4\ kWh[/tex]
So, 0.4 kWh of energy would be needed.
Answer: 146,000 Wh or 146 kWh
Explanation:
65 days × 10 hours × 40 W = 146,000 Wh or 146 kWh
HELP ME ASAP PLZZZ NOW!!!
Answer:
B. It's nucleus releases energy
Explanation:
I need help. Is this right? ITS SO
Answer:
Yes, that is correct.
The relationship between body mass body weight and body density
Answer:
The formula for calculating Density is:
= Mass / Volume
From this formula, we can say that the relationship between Mass and Density is a direct one. In other words, if mass is increasing - all else being equal - then density will increase as well.
If mass however was decreasing, density would have to decrease as well.
For example, assume 3 bricks have masses of 5kg, 10kg and 15kg. Also assume that the bricks all have the same volume of 5 m³.
Density of 5kg brick = 5 / 5 = 1 kg/m³
Density of 10kg brick = 10 / 5 = 2kg / m³
Density of 15kg brick = 15 / 5 = 3 kg /m³
Notice how density increases as mass increases and decreases when mass decreases.
please see the picture
Answer:
t.f. are you sure that's english? it looks like not a real thing
Explanation:
pls helppp :)List several examples of applied force, normal force, and friction that you’ve observed in your life.
ill mark brainliest if the answer is actually helpful:p
Answer:
an example for applied force is
Explanation:
The applied force is the force applied to the object to either displace it or change its shape.
HOPE THIS HELPS
five properties of light
Answer:
Light is electromagnetic radiation that has properties of waves. The electromagnetic spectrum can be divided into several bands based on the wavelength. As we have discussed before, visible light represents a narrow group of wavelengths between about 380 nm and 730 nm.
OR
The primary properties of visible light are intensity, propagation-direction, frequency or wavelength spectrum and polarization, while its speed in a vacuum, 299 792 458 m/s, is one of the fundamental constants of nature.
Why does no one actually help on here?
Answer: i dontt know everyone is annoying
Explanation:
A 6 kg object has a speed of 24 m/s. What is its kinetic energy?
Explanation:
K.E = 1/2mv²
K.E = 1/2 * 6 * 24²
K.E = 1728J
Answer:
K.E = 1/2mv²
K.E = 1/2 * 6 * 24²
K.E = 1728J
Explanation:
Materials that hold electrons very tightly, and thus don't allow much static electricity to occur around them, are called
List 3 main types weathering
Answer:
3 types of weathering are, physical, chemical and biological weathering.
Explanation:
Hope this helps and have a wonderful day!!!
Which BEST explains why rainbows only appear when there is rain and sun? a)The rain needs to dim the light for them to appear. b)The combination of light and water creates a prismatic effect. c)The sun restricts the light rays that impact with the water. d) Heavy rain and little sun produce the strongest rainbows.
Answer:
C
Explanation:
Answer:
You're answer would be B.
Explanation:
Fact: A water droplet refracts and disperses the incident sunlight, then reflect it internally and finally refract it again, when it emerges out of water droplet thus acting like a prism.
In Option B, It states: The combination of light and water creates a prismatic
Therefore, This option is true! However, I would say the combination of light and water make more of a chroma effect to water (my opinion)!
-♥ Have a nice day ♥-
a baseball with a mass of 0.8 kg is moving at asperd of 45.0 m/s . what is the baseballs kinetic energy
SOMEONE HELP PLEASE!!
Answer:
0.5*0.8*45^2. =810J
Explanation:
KE=1/2 mv^2
what are four forms of energy
Answer:
The four forms of energy are:
1. Kinetic Energy
2. Radiation Energy
3. Potential Energy
4. Chemical Energy
Explanation:
Above are listed the four main types of energy. Hope this helps! :)
When does the edge of the water advance farther inland- when the ocean's floor is a gradual slope or steep slope?
Answer:
The correct answer is when the slope is steep.
Explanation:
The advancement of water inland is dependent on the rate at which water wears off the continental shelf and the coastal plain. The higher the amount of rainfall, and the harshness of the dry spells, the faster the rate of erosion that occurs at the coastal plain.
As the erosion increases, the coastal plain becomes steeper. The steeper the plain, the water flowing erodes the coastal plain at a faster rate. Hence the water advances farther inland faster than where the slope is gentle or gradual.
Cheers
if the volume of a fixed mass of hydrogen in a container is 30cm³ at a pressure of 50mmHg find the volume of the gas if the pressure is 60mmHg at constant pressure
25
Explanation:
P1V1=P2V2 hence 50×30=60v
V=1500÷60
V=25
Q2: (2 marks) (show your work)
What is the net force on the box shown below?
30 N
60 N
20 N
Answer:
Net force = the difference between the forces of two directions
Net force= 60N-(30N+20N)
=60-50
Therefore Net force = 10N
answer this question for brainlest and 20 points
Most metallic elements, such as copper
and iron, have high melting points. This
is a useful property because
F. it keeps cars made of metal from
becoming hot on summer days
G. it enables people to use pots and pans
made of metal to cook food
H. it prevents machine parts made of
metal from rusting
J. it makes metals easier to melt so they
can be poured into molds to make
precision tools
Answer:
G. it enables people to use pots and pans made of metal to cook food
Explanation:
Metals are known to be substances with a relative high melting point, which means that it takes a very high temperature to melt them. As used in this question, copper (Cu) and iron (Fe) at metallic elements that have high melting points.
One advantage of this property based on the options provided is that "it enables people to use pots and pans made of metal to cook food". This is because cooking food requires subjecting them to a constant temperature from a heat source e.g cooker or stove.
The material used to hold the food being cooked must possess a very high melting point to withstand the heat, hence, the importance of these metallic substances. Most pots and pans are made of steel, an alloy of iron, hence, they have high melting point.
What is the average velocity of the particle from rest to 9 seconds?
1 meter/second
B.
2 meters/second
C.
3 meters/second
D.
4 meters/second
The gravitational force between two objects will be greatest in which of the following situations?
Both objects have small masses are close together.
One object has a large mass, and the objects are close together.
Both objects have large masses and are close together.
Both object have large masses, and they are far apart.
Answer:
One object has a large mass, and the objects are close together.
What and where is the asteroid belt?
Please ANSWER THIS
Answer:
The asteroid belt is a region of our solar system, between the orbits of Mars and Jupiter, in which many small bodies orbit our sun.
Explanation:
Hope this helps!
Answer:
The asteroid belt (sometimes referred to as the main asteroid belt) orbits between Mars and Jupiter. It consists of asteroids and minor planets forming a disk around the sun. It also serves as a sort of dividing line between the inner rocky planets and outer gas giants.
Explanation:
Hope this helps! :)
when people walked on the moon, they found that they could jump higher than theu could back on earth. why is this true?
Answer:
There is less gravity on the moon
hope this helps
have a good day :)
Explanation:
1. An ideal gas changes from a state defined by pressure P1 and volume V, to a state defined by pressure P2 and volume V2. Which set of properties is
independent of the path between the two states?
A work performed by or on the gas
B change in internal energy of the gas
C heat transfered to or from the gas
D work and heat transfer involving the gas
A 19 Ω resistor and a 4 Ω resistor are connected in series to an ideal 18 V battery.
A) Find the current in each resistor.
Answer in units of A.
B) Find the potential difference across the first resistor.
Answer in units of V.
C) Find the potential difference across the second resistor.
Answer in units of V.
Explanation:
First Calculate Total Equivalent Resistance (Series) :
[tex]R_{eq} = r_{1} + r_{2} = 23 \: ohms[/tex]
(A) Current in each resistor :
[tex]I = \frac{V}{R} = 0.78 \: A[/tex]
(Since this is a series connection, the electric current is same through both resistor).
(B) Potential Difference across the first resistor :
[tex]V = IR = 0.78 \times 19 = 14.82 \: V[/tex]
(B) Potential Difference across the second resistor :
[tex]V = IR = 0.78 \times 4 = 3.12 \: V[/tex]
What is always true about the total amount of oxygen and carbon dioxide in the test tube?
explain how a syringe dra
ws blood from a patient's body
Answer:
You first push in then when the syringe is full push the out
Explanation:
1. in
2. out
but u should watch a You-tube video just in case
I hoped this helped!
when he drove home his car broke down it wasnt due to a problem with the wheels it was the?