My bestfriend is the best ever person in my life.
Answer:
Best friend is that person which we share our feeling.
A car is travelling to the right with a speed of 40 m/s when the driver slams on the brakes. The car skids for 4 s with constant acceleration before it comes to a stop. What was the rate of the car's acceleration as it skidded to a stop?
Answer:
10m/s^2
Explanation:
Given data
velocity= 40m/s
time= 4 seconds
Acceleration a =????
We know that
a= velocity/time
substitute
a=40/4
a= 10m/s^2
Hence the acceleration will be 10m/s^2
What is the atomic mass of fluorine rounded to the nearest whole number?
Answer:
195
Explanation:
What is the mechanical advantage of an inclined plane that has a length of 9 feet and a height of 3 feet?
0.3
3
6
27
Answer:
it would be 3
Explanation:
because you have to divide the length by the height of the incline.
The mechanical advantage of an inclined plane that has a length of 9 feet and a height of 3 feet will be 3.
What is the mechanical advantage?Mechanical advantage is a measure of the ratio of output force to input force in the system, it is used to obtain the efficiency of a mechanism.
The formula for the mechanical advantage of the inclined plane is found as;
[tex]\rm Mechanical \ advantage = \frac{length}{height} \\\\ Mechanical \ advantage =\frac{9}{3} \\\\ Mechanical \ advantage =3[/tex]
Hence the mechanical advantage of an inclined plane that has a length of 9 feet and a height of 3 feet will be 3.
To learn more about the mechanical advantage refer to the link;
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Choose all the answers that apply.
Currently, children are vaccinated for _____.
whooping cough
cancer
chicken pox
measles
polio
Answer:
Measles and Whooping Cough
Explanation:
I really hope so
Answer:
Hey
Explanation:
my gosh im in fifth grade and need an answer stat dude what causes lightning
A. build up of electrical charges in the clouds
B. flow of electrical charges among clouds
C. light energy created in the clouds
D. reflection of light in the clouds
Answer:
it's either A or B because lighting is an electrical discharge caused by imbalance between storm clouds and the ground
Explanation:
pretty sure it's A though
Of the following reactions, which is a fusion reaction?
a.
uranium-235 absorbing a neutron and splitting into xenon-140, strontium-94, and two neutrons
b.
hydrochloric acid combining with sodium hydroxide to form a salt and water
c.
carbon-14 decaying into nitrogen-14 and a beta particle
d.
curium-246 combining with carbon-12 to form nobelium-254 and four neutrons
Answer:
Option D is correct.
Explanation:
It is fusion reaction.because curium combines with carbon to form a big nuclei of nobelium.[tex]Cm_{246} +C_{12}[/tex] → [tex]No_{254}[/tex]
Hence, it is the fusion reaction.
What is fusion?When two or more nuclei fuse together to form a heavy nucleus with the energy released, is called fusion.
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what is the the relationship between velocity and gravity?
Answer: When objects fall to the ground, gravity causes them to accelerate.
Explanation: Gravity causes an object to fall toward the ground at a faster and faster velocity the longer the object falls.
Which statement best describes twins with identical DNA?
O A. The twins will not be similar physically but may have similar behaviors.
OB. The twins will not share any similarities.
c. The twins will be identical physically and behaviorally.
D. The twins will be very similar physically but will have some unique behaviors.
The best description of twins with identical DNA is that the twins will be identical physically and behaviorally. Thus, the correct option is C.
What are the identical DNA twins?Identical twins are also called as the monozygotic twins which result from the fertilization of a single egg by a single sperm, or with the fertilized egg which are then splitting into two individual offspring. Identical twins share the same genomes and are also of the same sex.
Identical twins are also called as monozygotic twins, these result from the fertilization of a single egg by a single sperm, with the fertilized egg which then splitting into two identical cells. Identical twins share the same genomes and are always of the same sex.
Therefore, the correct option is C.
Learn more about DNA here:
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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;
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How is sleet different from hail?
Answer:
Hail occurs in warm weather, while sleet occurs during cold weather. When the temperature falls below 32 degrees, precipitation falls out of a cloud as snow. ... Unlike hail, sleet is tiny in size and falls only once from the sky.
Explanation:
Hopefully its right :)
A car moving with an initial velocity of 36 m/s slows down at a constant rate of -2.8 m/s^2 . What distance does the car travel after 3 seconds of deceleration? Remember to include units in your answer! *
Answer:
the distance covered by the car is 95.4 m.
Explanation:
Given;
initial velocity of the car, u = 36 m/s
acceleration of the car, a = -2.8 m/s²
time of motion of the car, t = 3 s
The distance covered by the car is calculated as;
s = ut + ¹/₂at²
s = 36(3) + ¹/₂ x (-2.8)(3)²
s = 108 - 12.6
s = 95.4 m
Therefore, the distance covered by the car is 95.4 m.
HURYY PLEASE
The processes that transform inputs to outputs are what part of a system?
the components
the surroundings
the flow
the boundary
A force of 162 N is applied to an object causing it to accelerate at a rate of 3.8 m/s^2. What is its mass?
A. 0.2 kg
B. 616 kg
C. 43 kg
D. 102 kg
Answer:
43 kg
Explanation:
Force (F) = 162 N
acceleration (a) = 3.8 m/s²
mass (m) = ?
We know
F = m * a
162 = m * 3.8
m = 162 / 3.8
m = 43 kg
It's mass is 43 kg.
Hope it will help you :)
What is the relationship between the mass of the objects and the force exerted?
Answer:
Objects with mass exert forces on each other via the force of gravity. This force is proportional to the mass of the two interacting objects, and is inversely proportional to the square of the distance between them. The factors G, M, and r are the same for all masses at the surface of the Earth.
From the simulation and the readings that you may have recorded, what do you observe about the relation between period and frequency?
Answer: The speed of the wave appears to be constant. This is because the speed of sound depends only on the properties of the medium, and the medium is the same.
Explanation: The answer is from edmentum. Just letting you know on what not to copy and paste. Change it up.
Every force applied to an object will cause the object to move.
Answer:
Yes your correct.
Explanation:
What is the station 2 code for cupids spread the love escape room?
Answer:CADB
Explanation:
What moon phase is shown in the picture ?
the answer is waxing gibbous moon
Explanation:
.
What equations would you use to find force?
Answer:
F = m x a
Explanation:
F = force
m = mass of an object
a = acceleration
If
you lift a 5 Kg bowling ball with a force of 49 N to a height of 40 m, what is the amount of work done on the
bowling ball to lift it?
Answer:
Workdone = 1960 Joules.
Explanation:
Given the following data;
Mass = 5kg
Force = 49N
Height (distance) = 40m
To find the workdone;
Workdone = force * distance
Substituting into the equation, we have;
Workdone = 49*40
Workdone = 1960 Joules.
Therefore, the amount of work done on the bowling ball to lift it is 1960 Joules.
Pls help me I need help thanks.
Answer: The Answer Is A
Explanation:
If the force of gravity was suddenly removed between the earth and sun, how would Earth move?
Group of answer choices
The sun would fly off into space.
The Earth would fly off into space in a straight line.
The Earth would fly off into space in a curved path.
The Earth would fall into the sun.
Answer:
the earthe would fly off into space in a straight line
List three unique examples of situations in your daily life where expansion and contraction occur.
Help please
Which occurrence would lead you to conclude that lights are connected in a
combined circuit?
A. When one bulb burns out all the lights go out.
B. When one bulb burns out, a circuit breaker is tripped.
C. When one bulb burns out a small section of lights goes out.
D. When one bulb burns out all the other lights stay lit.
Answer:
D
Explanation:
as one burns then all stop simple
please mark me as brainlist
8. What is the length of the diagonal of a 10 cm by 15 cm rectangle?
Answer:
18.03
Explanation:
You use Pythagoras theorem to work out the diagonal
Hope this helps :)
What type of force causes your car to move?
Answer:
frictional force
Explanation:
ill give brainliest,
Nascar fans love race day when they get a chance to pull for their favorite drive. If a driver was able to travel 600 miles in 3 hours, what was his/her average speed?
A rock is thrown with a force of 500 N and an acceleration is 75 m/s^2. What is its mass?
A. 575 kg
B. 3.8 x 104 kg
C. 0.15 kg
D. 6.7 kg
Answer:
We conclude that the mass of a rock with a force of 500 N and an acceleration of 75 m/s² is 6.7 kg.
Hence, option D is correct.
Explanation:
Given
Force F = 500 NAcceleration a = 75 m/s²To determine
Mass m = ?
Important Tip:
The mass of a rock can be found using the formula F = ma
Using the formula
[tex]F = ma[/tex]
where
F is the force (N) m is the mass (kg) a is the acceleration (m/s²)now substituting F = 500, and a = 75 m/s² in the formula
[tex]F = ma[/tex]
[tex]500 = m(75)[/tex]
switch sides
[tex]m\left(75\right)=500[/tex]
Divide both sides by 75
[tex]\frac{m\cdot \:75}{75}=\frac{500}{75}[/tex]
simplify
[tex]m=\frac{20}{3}[/tex]
[tex]m=6.7[/tex] kg
Therefore, we conclude that the mass of a rock with a force of 500 N and an acceleration of 75 m/s² is 6.7 kg.
Hence, option D is correct.
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
what moon phase will occur about 14 days after a first quarter?
Answer:
waxing gibbous is the answer.