Answer:
(B) Conduction
Explanation:
Answer:
a ) conduction
Explanation:
it's a because if u think about it a conductor keeps the heat from getting to a certain part of the metal
Are Styrofoam and wood the same temperature, if they are not what are each others temperature
I will give brainliest :)
A car can go from 0m/s to 27 m/s in 4.5 seconds. If a net force of 6,600 N acted on the car , what is its mass? (Hint: solve for acceleration 1st)
Answer:
The answer is 1100kg.
Explanation:
First, you have to find the acceleration using the formula, a = (v-u)/t where v is final speed, u is initial speed and t is time :
[tex]a = \frac{v - u}{t} [/tex]
[tex]a = \frac{27 - 0}{4.5} [/tex]
[tex]a = 6m {s}^{ - 2} [/tex]
Next, you have to apply force formula, F = m×a where m is mass :
[tex]F = m \times a[/tex]
[tex]6600 = m \times 6[/tex]
[tex]m = 6600 \div 6[/tex]
[tex]m = 1100kg[/tex]
1. Lance starts the cycling marathon with a velocity of 6.2 m/s. Lance increases
his velocity to 9.7 m/s in 8 seconds. What is Lance's acceleration during this time?
What is matter made of ?
Answer:
Matter is made up of atoms.
Urgent!
What is the mass of a baseball that has a kinetic energy of 4.8 J and is traveling at 8 m/s?
I think it's 0.6. ∞
Hopefully, it's correct... ∵-∵
What happened when red light and cyan light combine, what colour of light results?
Answer:
I'm pretty sure it makes a white light... i could be wrong and sorry if I am
Pls help me ill give brainliest
Answer:
c
Explanation:
a, b, and d are examples of moving forward
while c is moving backwards.
list sources of noise pollution in your surroundings
-Sounds of Vehicles
-Speakers or TV's at High Volume
-Kitchen Appliances
-Electronic Appliances
-Barking of dogs
Answer:
there are many
Explanation:
includeing planes
loud music
cars
traffic noise
an object is horizontally dragged across surface by 100 N force acting parallel to the surface . find out the amount of work done by force in moving the object through distance 8 m
Answer:
Yeah I know you will try to get me this weekend so I can make sure I get a good time and I will talk to you later bye and get back to you
Explain how the embryological development of different species reveals similarities of organisms that are not evident in the fully formed anatomy.
Answer:Comparison of the embryological development of different species also reveals similarities that show relationships not evident in the fully-formed anatomy.
Explanation:
Comparison of the embryological development of different species also reveals similarities that show relationships not evident in the fully-formed anatomy.
(Have a great day :D)
What causes one plate to sink under another
1 Mass
2 Shape
3 Density
where did the scientific revoluton began
Answer: The scientific revolution began in Europe toward the end of the Renaissance period, and continued through the late 18th century, influencing the intellectual social movement known as the Enlightenment
Explanation:
A 500 N force is applied to an object accelerating at 25 m/s^2.
what is the mass of the object?
Answer:
there are go fella hope u understood
The mass of the object is 20 g
The first step is to write out the parameters given in the question
Force- 500 N
acceleration= 25 m/s²
mass= force/acceleration
= 500/25
= 20
Hence the mass of the object is 20g
Please see the link below for more information
https://brainly.com/question/24285803?referrer=searchResults
Two ways I can decrease the force attraction between two charged objects?
Answer: Change distance and charge
Explanation:
Increase the distance between the two particles, and remove charge from one or more of the particles.
Coulomb's Law is:
[tex]F=\frac{kq_1q_2}{r^2 }[/tex]
k being a constant of 8.99 x 10^9 (units)
q1 and q2 being the magnitude of charges
r being the distance between them
6. Dentists use a soft, clay-like material to make a filling for a cavity. The filling stays soft under the
light of the dentist's lamp, but it hardens when the dentist shines an ultraviolet flashlight on it. Why
does light from the ultraviolet flashlight harden the filling when light from the lamp does not?
Because ultraviolet light may be absorbed by the filler substance, but not by the lamp's light. Because UV light extracts energy from the filler substance while lamp light does not.
What is ultravoilet ray?Ultraviolet Rays in the electromagnetic Spectrum Ultraviolet rays are a kind of electromagnetic radiation that extends from the visible light spectrum to the X-ray area.
Harmful rays have a long-term effect on humans, causing skin and eye problems. It is also a source of Vitamin C.
Because ultraviolet light may be absorbed by the filler substance, but not by the lamp's light. Because UV light extracts energy from the filler substance while lamp light does not,
Hence light from the ultraviolet flashlight harden the filling when light from the lamp does not.
To learn more about the ultravoilet ray refer to thr link;
https://brainly.com/question/25780677
- Lola applies force to the handle of a jack so that she can change the flat tire on her car. If she uses
1,250 joules of energy on a jack that is 40 percent efficient, how much energy is available to raise
the car?
750 energy jack percent efficient
Please help
Convert the following distance v time graph velocity graph
Explanation:
for v vs t graph for t=9 to 11,v=15kmph
similarly v2=0,v3=60kmph&v4= -40kmph
Benny can’t get the metal lid off a new glass jar of jam. His mother tells him to run hot water carefully over the lid. He does this and is able to unscrew the lid easily. Explain what happened. Use these terms in your answer: Heat, temperature, specific heat, and thermal expansion
Answer:
The cap expanded
Explanation:
As you run hot water (Or any substance) onto something it expands, With coldwater it shrinks. Its like clothes, If a shirt is to small wash it in hot water. If it is to big run it in cold water.
4. Magnets with one pole are now routinely made.
True or False
Answer:
False
Explanation:
At what point does a rubber band have the most elastic potential energy? Explain.
Answer:
You input potential (stored) energy into the rubber band system when you stretched the rubber band back. Because it is an elastic system, this kind of potential energy is specifically called elastic potential energy. ... When the rubber band is released, the potential energy is quickly converted to kinetic (motion) energy.
Explanation:
The Cartesian coordinate of a point in the xy plane are (x,y)=(-3.50,-2.50)m. Find the poler coordinate of this point
Answer:
The polar coordinate of [tex]P(x,y) = (-3.50\,m,-2.50\,m)[/tex] is [tex]P (r,\theta) = (4.301\,m, 215.538^{\circ})[/tex].
Explanation:
Given a point in rectangular form, that is [tex]P(x,y) = (x,y)[/tex], its polar form is defined by:
[tex]P(x,y) = (r,\theta)[/tex] (1)
Where:
[tex]r[/tex] - Norm, measured in meters.
[tex]\theta[/tex] - Direction, measured in sexagesimal degrees.
The norm of the point is determined by Pythagorean Theorem:
[tex]r = \sqrt{x^{2}+y^{2}}[/tex] (2)
And direction is calculated by following trigonometric relation:
[tex]\theta = \tan^{-1} \frac{y}{x}[/tex] (3)
If we know that [tex]x = -3.50\,m[/tex] and [tex]y = -2.50\,m[/tex], then the components of coordinates in polar form is:
[tex]r = \sqrt{(-3.50\,m)^{2}+(-2.50\,m)^{2}}[/tex]
[tex]r \approx 4.301\,m[/tex]
Since [tex]x < 0\,m[/tex] and [tex]y < 0\,m[/tex], direction is located at 3rd Quadrant. Given that tangent function has a period of 180º, we find direction by using this formula:
[tex]\theta = 180^{\circ}+\tan^{-1} \left(\frac{-2.50\,m}{-3.50\,m} \right)[/tex]
[tex]\theta \approx 215.538^{\circ}[/tex]
The polar coordinate of [tex]P(x,y) = (-3.50\,m,-2.50\,m)[/tex] is [tex]P (r,\theta) = (4.301\,m, 215.538^{\circ})[/tex].
TRUE or FALSE: Feeling "weightless" can be the result of accelerating downwards towards Earth.
A. TRUE
B. FALSE
The acceleration due to gravity on the moon is 1.6 2. If an astronaut weighs 96 N on
the moon, what is the astronaut's mass on Earth? (2 points)
Answer:
60kg
Explanation:
F= ma
96 = m ×1.6
m= 96/1.6
=60 kg
The electric field of a positively charged ball A contains a negatively charged small dust
Answer:
Here is your ans pic
hope its helps you
Explanation:
pls make brainliest
tq
Different environments can have very different weather. Which environment is most likely to have the highest humidity?
Answer:
swamp
Explanation:
I think. The desert is hot and less humid. Mountain is more cold. Tundra...no
What are the dangers of a hurricane and how do you stay safe during the hurricane
Answer
hdhcu very much xbeyxbuxbduxb shx
How does nutrition affect self-concept?
A 4.0 kg box is released from rest on a frictionless ramp. The box slides from the ramp onto a rough horizontal
surface with a friction coefficient per = 0.50. The box slides 2.0 m horizontally until it stops.
Answer:
0.99932188871837 rounded to 2 significant figures is 1.00m or 1.0m
Explanation:
Step 1 - First calculate the force with the formula: Force = mass × acceleration due to gravity/ (F=mg) {g= 9.8m/s²}
4.0kg × 9.8m/s² = 39.2 Newtons
Step 2 - Then calculate the Kinectic power with the following procedure:
Kinectic force = the coefficient of Kf × mg
0.50μ × 39.2 N = 19.6 Newtons of Kinectic force
Step 3 - Use the equation for Work that is = F×d; use the value of Kf and multiply it by the given distance
W = 19.6 N × 2.0m = 39.2 Joules of energy
↓Remember that the product of Work is Energy (W=E) and that in some cases, we can set W as = kinetic energy ( [tex]\frac{1}{2}[/tex]mass×velocity²) or as = gravitational potential energy (mass *acceleration due to gravity*height)
↑Since the unknown variable that we are told to find is 'height', let's use the second formula to help us solve the problem, where we said that GPE = mgh / PEg = mgh
Step 4 - Find the missing height using the formula, Energy gained from (W = mgh), by rewriting (mgh) to solve for h
39.2 J of E = 4.0kg × (9.8 m/s² × h)
h = [tex]\frac{PEg}{mg}[/tex]
h = [tex]\frac{39.2N}{9.8m/s{2} times 4.0kg}[/tex]
Height of box on-ramp = 1.0m
plz help I will give brainly to the correct answer
Answer:
D. x-rays
Explanation:
Lower frequency: Radio waves, microwaves and infrared have lower frequency than visible light. Shorter wavelength: Ultraviolet, x-rays and gamma rays have a shorter wavelength than visible light.
What is the kinetic energy of a 4 kg toy car moving at 5 m/s?
Answer:
50 J
Explanation:
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