D
Explanation:
Because between this force the opposite direction will be zero
Answer: The answer is actually A, 20 N south
Explanation:
Because I got it wrong, but then it showed me the answer.
inimbita ka ng iyong kamag aral na magpunta pagkatapos ng inyong klase sa isang video shop na malapit sa inyong paaralan ngunit nag bilin ang nanay mo na umuwi ka nang maaga dahil mayroon siyang ipagagawa sa iyo ano ang gagawin mo?
Answer:
sabihin sa kamag-aral na deh muna ako sasama kasi may papagawa pa nanay ko Sakin.
Explanation:
pa brainliest
A girl attempts to swim directly across a stream 15meters wide. When she reaches the other side, she is15 meters downstream. The magnitude of herdisplacement is closest to
A flare fired upward at 49 m/s will reach a height of
Answer:
122.5 meters
Explanation:
We have the third equation of motion:
[tex]\boxed{\mathsf{v^2=u^2+2aS}}[/tex]
v stands for the final velocityu, initial velocitya is the acceleration of the particle in motionS, the distance covered by the same particle.Here, the particle is a flare.
It's initial velocity is 49 m/ s and the final will be zero, that's 'cause the particle comes to a standstill upon reaching its maximum, in case of motion under gravity.
a will be the acceleration due to gravity = 9.8 m/ s²
So, here are the terms we've got for the third eqn. of motion:
v = 0 m/ su = 49m/ sa = - 9.8 m/ s (the force of gravity acts downwards, and that's the direction we say is negative)Now, the term we've got to find out is the height reached by the flare, i. e., S.
=> v² = u² + 2aS
=> (0)² = (49)² + 2×(-9.8)×S
=> 0 = 49×49 - 2×9.8×S
=> 2×9.8×S = 49×49
[tex]\implies \mathsf{S=\frac{49\times 49}{2\times9.8} }[/tex]
=> S = [tex]\frac{245}{2}[/tex]
=> S = 122.5 metersAnd, S is the maximum height the flare covers, so the answer is 122. 5 meters
V1=2 L
T1= ? degrees Kelvin
V2= 4 L
T2= 300 degrees Kelvin
Explanation:
using Charles law
V1/T1 = V2/T2
2/ T1 = 4/300
cross multiply
4 X T1 = 2 X 300
T1 = 600/4 = 150
T1 = 150°k
7. Circle the letter of the sentences that describe Thomson's model of the
atom.
a. An atom is filled with positive matter.
b. An atom is mostly space with a small nucleus.
c. Negative charges are scattered throughout an atom.
Answer: c
Explanation:
How much time does it take the cheetah to travel 500 meters, if its average speed is 70 meters per second?
l=500m
speed=70m/s
t=?
t=500/70=7.14s
If it takes 5 seconds for the projectile to reach its highest point, what is the total
hang time?
10 sec
1 sec
2 sec
d
8 sec
A car accelerates from 5 m/s to 15 m/s in 5 s. What is its acceleration?
Answer:
2m/s squared
Explanation:
15-5=10m/s
10m/s divide by 5s
it gives 2m/s squared
A ship travels north at 15 km/h for 2 h. What is the ship's displacement in km?
The ship travels with a velocity of 15 km/h within 2 hours. The distance travelled is the velocity times the time taken that is 30 km to the north.
What is velocity ?Velocity is a physical quantity measuring the distance travelled by an object per unit time. Velocity is the rate of speed and it is a vector quantity having both magnitude and direction. The unit of velocity can be m/s, km/h, ft/s etc.
Velocity is the ratio of the change in distance to the change in time. The change in distance is sometimes called the displacement.
then velocity = displacement / time
Given that velocity = 15 km/h
time taken = 2 hours
then displacement = velocity × time
= 15 × 2 = 30 Km
Therefore, the displacement of the ship is 30 km to the north.
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In addition to time, which of the following must be used for a more complete description of the average acceleration of an object?
A. Mass
B. Displacement
C. Velocity
D. None of the above
You push a friends sitting on a swing. If you push with 200N of force and your friend accelerates at a rate of 4 m/s^2. Find the mass of your friend.
e friend sitting on the swing = 50 kg
Rate of acceleration = 4 m/s^2
The above information's are already given in the question. We need to utilize these information's in such a manner that the answer to the question can be determined easily.
We already know that
Force = Mass * acceleration.
This formula has to be used to find the force exerted.
Then
Force exerted = Mass of the friend * Acceleration
= (50 * 4) kg m/s^2
= 200 Newton
So the force exerted by me is 200 Newton. I hope the explanation and the procedure is clear to you and you are satisfied with it.
What conclusion does the student most likely make based on this data?
Answer:
O Tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.
Explanation:
In the data the student collected, it showed that when the atmosphere is thicker, it slows down the light. With sound however, the sound travels better in thicker stmosphere or solid, than thin air, or steam.
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7. A gold bar has a volume of 4.7 cm3 and a density of 19.3 g/cm3. What is its mass? Be sure to show your work and label all units
Answer:
90.71
Explanation: Just multiply V/D=Mass
c. You push a sled of mass 15 kg across the snow with a force of 180 N for a distance of 2.5 m. There is no friction. If the sled started at rest, what is the velocity
of the sled after you push it? Please I really need help 60 pointsss
Explanation:
7.7 m/s
1st determine you subject slade to you have a mass of 15 kg being subjected to a force of 180N
so.
180N/15kg=180(kg m)/s^2/15kg=12 ms^2
now determine how long u pushed it
d=0.5 A T^2
sutable the known values getting
2.5 m = 0.5 12 ms^2 T^2
2.5m= 0.6 ms^2 T^2
0.41667 s^2=T^2
0.645497224s=T
the velocity multiply the time by the acceleration giving
0.645497224 s 12 ms^2 =7.745966692 ms.
after rounding the 2 significant u get 7.7 ms
6. An object has a volume 30ml and a mass of 30g. What is the density
Answer:
1 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question
mass = 30 g
volume = 30 mL
We have
[tex]density = \frac{30}{30} = 1 \\ [/tex]
We have the final answer as
1 g/mLHope this helps you
Calculate the power of a car that uses 12KJ of chemical energy in 6 seconds
Explanation:
Power=work done/time
=> 12kJ/6s = 12000J/6s = 2000W = 2kW.
hope this helps you
the jovian planets are thought to have formed as gravity drew hydrogen and helium gas around planetesimals made of __________.
Made of rocks,metal and ice.
The frequency of a sound in a 8 m long metal rod is 250 Hz. There are two complete sound waves in the rod. The speed of sound in this metal is
[tex]\\ \sf\longmapsto v=f\lambda[/tex]
[tex]\\ \sf\longmapsto v=250(8)[/tex]
[tex]\\ \sf\longmapsto v=2000m/s[/tex]
A helicopter lifts 35m vertically into the air and then comes back down to the ground.
What is the distance of the helicopter’s flight?
What is the displacement of the helicopter’s flight?
Explanation:
Distance = Total path length = 35m + 35m = 70m
Displacement = Final - Initial position = 0m
1 Apps OCPS
Tools
Weather
1
Directions: Select each correct answer. More than one answer may be correct.
Computer simulations are used to predict the weather. A computer simulation is a kind of model. Large amounts of data are entered
into the computer. Then the computer performs complicated calculations with the data. The result is a prediction about what the
weather might be like in the coming hours or days.
Why are computers widely used for modeling weather systems?
because weather systems are too complicated to be accurately predicted using small-scale
models
D
because weather systems are too large to study in controlled experiments
because weather systems are too complicated to be studied with instruments and satellites
because weather systems are too large to be observed in nature
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Computers are widely used for modeling weather systems because because weather systems are too complicated to be accurately predicted using small-scale. Hence option A is correct.
What is whether system ?Weather refers to the condition of the atmosphere and includes terms like how hot or cold, wet or dry, quiet or stormy, clear or foggy, etc. The troposphere, which is the lowest part of Earth's atmosphere and lies just below the stratosphere, is where most meteorological events take place. Climate is the phrase for the average of atmospheric conditions over longer periods of time, whereas weather is the term for day-to-day temperature, precipitation, and other atmospheric factors. Without more explanation, "weather" is typically taken to refer to the weather on Earth.
Differences in air pressure, temperature, and moisture from one location to another influence the weather. The Sun's angle at any given location, which changes with latitude, may be the cause of these variations.
Hence option A is correct.
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what force is driving the orbits positioning of the planets around the sun
Answer:
he found that a single forece known as gravity keeps the planets in their orbits around the sun gravity force that keeps planets in their orbits calculus a branch of mathmatics partially developed by Newton and used to explain his laws
Explanation:
I hope you have a nice day and please mark me(:
What is the density of a block of wood, that weigh 18 grams, and volume is 56ml
Answer:
0.3214 grams per millimetre
Explanation:
Answer: 32
Explanation:
D = m/v
D = 18/56
D = ?
Which term is defined as the amount of charge stored per volt?
A. capacitance
B. potential difference
C. potential energy
D. electric potential
Given the role of protein in the body, what is a likely consequence of not getting enough protein in the body?
OPTIONS:
A.
It will be very easy to get sick.
B.
It will result in a lack of energy.
C.
It will negatively impact coordination.
D.
It will cause the body to create too much sugar.
PLEASE NO LINKS
Answer: It is b
Explanation:
The lack of protein in the body will result in a lack of energy in the body. Hence, option B is correct.
What is protein?Proteins are created from a variety of amino acid building blocks. Our body needs dietary protein to supply amino acids for the growth and upkeep of our cells and tissues. As we become older, our dietary needs for protein change.
Proteins are made up of many different amino acids that are joined together. Both plants and animals have a lot of these 20 different amino acid building blocks. Each protein has a unique ratio and arrangement of the 300 or more amino acids that make up a typical protein.
Our body is made up of thousands of different proteins, each of which has a specific function. They contribute to the structural components of our cells and tissues, along with the countless enzymes, hormones, and active proteins produced by immune cells.
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which kind of energy transformation occurs in a gasoline-powered car?
F. Chemical energy is converted into mechanical energy.
G. Mechanical energy is converted into light energy.
H. Light energy is converted into sound energy.
J. sound energy is converted into chemical energy.
Answer:
Chemical energy is converted into mechanical energy
Explanation:
Chemical energy stored in the bonds of hydrocarbons is released as heat which drives the piston in a car to produce circular motion that propels the car.
Which of the following should you ask yourself when evaluating the credibility and reliability of a website
Answer:
all of the above
Explanation:
because I know
Answer: all of the above
Explanation:
Each answer - choice has a reasonable relevance when using a website.
the speed of an object increases by 30 m/s in 10 seconds. what is its acceleration?
Hope this helps you
who is the target group of referred to or described in the text about gabu?
A snake slithered across the sidewalk in between two sign posts. At the first sign post his speed was
1.2 m/s. At the second sign post his speed was 1.2 m/s. This is an example of...
This is an example of Uniform Speed
EXPLANATION
Uniform Speed => no change in speed
Uniform Accelerations Speed => There is a change in speed, but the acceleration remains the same.
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C
B.
1A.
1
2
3
G.
C.
45 6 8 9 11 12 time(s)
D.
F.
E.
Which section(s) of the graph would indicate that the object is moving forward?
A A and G
B A, F, and G
C Band E
D
A, B, C and G
Answer:
b
Explanation:
a,f,,and g is correct because it is indicated that object moving forward