Answer:
0.4 N
Explanation:
We know ,
F = maF = 0.2 * 2 NF = 0.4NA 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
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.
How does that motion change for the object if the forces on the object are unbalanced?
When the forces on the object are unbalanced, the object will move in the direction of the greater force.
What is Newton's first law of motion?Newton's first law of motion states that an object at rest or uniform motion in a straight line will continue in that path unless acted upon by an external force and the object will tend to move in the direction of the applied force.
What is Newton's second law of motion?Newton's second law of motion states that the force applied to a body is directly proportional to the acceleration of the body.
F = ma
Unbalanced forces on a bodyIf the net force acting on a body is greater than zero, the body will tend to move in the direction of the greater force.
Thus, when the forces on the object are unbalanced, the object will move in the direction of the greater force.
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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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Which of the following is a vector?
mass
time
acceleration
speed
Answer:
acceleration is a vector quantity the explanation is below
Explanation:
Acceleration is a vector quantity. Acceleration has both magnitude and direction. For example, 9.8ms2 downward or −9.8ms2 vertically is an acceleration.
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
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.
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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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
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
what is net netforce?
A mason is shot with a constant speed of 7.5 x 10²m/sinto a region, when an electric field produces acceleration on the mason of magnitude 1.5 x 1025 ms-2 directed opposite to the velocity. Find the time taken (b) the distance covered by the mason before coming to rest and (c) the time for which it remains at rest.
Answer:
Distance, d = 0.1 m
It is given that,
Initial velocity of meson,
Finally, the meson is coming to rest v = 0
Acceleration of the meson, (opposite to initial velocity)
Using third equation of motion as :
s is the distance the meson travelled before coming to rest.
So,
s = 0.1 m
The meson will cover the distance of 0.1 m before coming to rest. Hence, this is the required solution.
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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Which term is defined as the amount of charge stored per volt?
A. capacitance
B. potential difference
C. potential energy
D. electric potential
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
21. A fisherman catches two sturgeons. The smaller of the two has a measured length of 93.46 cm (two dec- imal places and four significant figures), and the larg- er fish has a measured length of 135.3 cm (one deci- mal place and four significant figures). What is the total length of the two fish?
Answer:
135.3 cm + 93.46cm
= 228.76 cm
So total length of two fish is 228.76
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 = ?
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
trong trường hợp nào các vật rơi tư do với cùng một gia tốc g ?
4. Make new charts for each of the following scenarios. Predict what you think the graphs will
look like, and explain your reasoning.
a. The man starts three meters from the house and accelerates towards the tree.
b. The man stands still while he talks on his cell phone at the middle of the sidewalk, then
walks toward the house at a constant rate trying to get better cell reception. He comes to
a sudden stop when the coverage is good (about a meter before the house) and stands
still to finish his conversation.
c.The man starts close to the house, stands still for a little while, then walks toward the
tree at a constant rate for a while, then the slows to a stop.
Draw a position/time, velocity/time, and a acceleration/time graph for each scenario
Uh, Road work ahead?!?!
Answer:
what? im kinda confused....
what do you mean by road work ahead??
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.
A car with a velocity of 30 m/s accelerates uniformly at the rate of 2.0 m/s2 for 10 s. What is its final velocity?
ok i bet this one will suprise you when i tell you the answer
how many atoms are in the world no looking it up i want your honest gusse.
Answer:
i don't know like maybe
Explanation:
1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
A cannonball is fired from a cliff that is 50 meters above the ground. The cannonball is fired horizontally with a speed of 120 meters per second.
Calculate the horizontal distance that the cannonball will travel.
The horizontal distance that the cannonball will travel is 383.33m
In order to find the horizontal distance, we will use the formula for calculating the range expressed as:
[tex]R = u\sqrt{\frac{2H}{g} }[/tex] where:
u is the velocity
H is the height
g is the acceleration due to gravity
[tex]R = 120\sqrt{\frac{2(50)}{9.8} }\\R = 120\sqrt{\frac{100}{9.8} } \\R=120\times 3.1943\\R=383.33m[/tex]
Hence the horizontal distance that the cannonball will travel is 383.33m
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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
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
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:
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Bettina was sick for several weeks, and her slow recovery has made her realize that she is not as healthy as she thought she was. She has never been fond of exercise and is intimidated at the thought of going to a gym. Walking seems manageable, and there are some hills in her neighborhood. But she knows that is not aerobic exercise. Is this a good place to start?
OPTIONS:
A.
No, walking is neither aerobic nor anaerobic exercise.
B.
No, exercise that is not aerobic never does much good.
C.
Yes, but she will not have any health benefits unless she escalates it.
D.
Yes, she can slowly improve her capacity and move to aerobic exercise later.
Yes. Walking the hills in her neighborhood is a wonderful place to start.
D. She can slowly improve her capacity and move to aerobic exercise later.
Yes, she can slowly improve her capacity and move to aerobic exercise later. The correct option is (D).
Even if it isn't initially aerobic, starting with walking is a wonderful place to start, especially if Bettina isn't used to exercising frequently. Walking is a low-impact activity that is simple to fit into daily life and can be used as a gentle introduction to developing a habit of physical activity.
Even while walking isn't typically thought of as an aerobic workout, it nevertheless has several health advantages, including enhancing cardiovascular health, boosting energy, lowering stress, and aiding in weight management. Bettina can eventually increase the length and intensity of her walks to make them aerobic as she steadily increases her endurance and fitness level through walking.
Hence, the correct option is (D). Yes, she can slowly improve her capacity and move to aerobic exercise later.
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A box is in contact with a floor with a coefficient of friction of 0.50. If the box has a normal force of 500N, what force do have to push with to move the box? HELPPP
Answer:
250N
Explanation:
Coefficient of friction=frictional force/Normal force
coefficient of friction= 0.5Normal force(R)= 500NFrictional force (Fr)= ?0.5= Fr/500N
Fr= 500N×0.5 = 250N
Fr= 250N