Newton's second law allows finding the answer for the force that attracts the body is 127.4N
Newton's second law indicates that the force that is the interaction between two bodies is directly proportional to the product of the mass and the acceleration.
F = m a
Where the bold letters indicate vectors, F is the force, m the mass, and the acceleration of the body.
When a body is close to the Earth there is an interaction between the body and the planet, we call this interaction weight, it is given by the relationship
W = m g
Where W is the force called weight, m the mass of the body and g the acceleration of the body, which in this case is called the gravity acceleration (g = 9.8 m / s²)
They indicate that the mass of the body is m = 13 kg, let's calculate the weight
W = 13 9.8
W = 127.4 N
In conclusion using Newton's second law we can find the answer for the force that attracts the body is 127.4N
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the force on a dropped apple hitting the ground depends upon
Answer:
F=ma
Explanation:
Force = mass * acceleration
A monkey on a raft is crossing a river that flows to the east at 8.0m/s. His top paddling speed is 12.0m/sec. He points due south and attempts to cross. If the river is 120m wide, how far downstream will he end up when he reaches the other side?
The relation of uniform movement allows to find the result for the distance that descended when crossing the river is:
d = 180 m
Given parameters
The velocity of the river [tex]v_r[/tex] = 8.0 m / s towards the East The speed of the monkey [tex]v_m[/tex] = 12.0 m / s towards the south River width x = 120 mTo find
Distance downstream when crossing.
Velocity is a vector magnitude, it has modulus and direction, therefore vector algebra must be used.
The velocities are constant, let's use the uniform motion relation.
v = [tex]\frac{d}{t}[/tex]
In the attached we have a diagram of the movement. Let's calculate the time to cross the river.
[tex]v_r = \frac{x}{t}[/tex]
[tex]t= \frac{x}{v_r}[/tex]
t = [tex]\frac{120}{8.0}[/tex]
t = 15 s
The time is a scalar it is the same for the two movements, let's find how much it has descended in this time.
[tex]v_m = \frac{d}{t}[/tex]
d = [tex]v_m t[/tex]
d = 12.0 15
d = 180 m
In conclusion, using the uniform motion relationship we can find the result for the distance that descended when crossing the river is:
d = 180 m
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how long would it take to walk around the world
It would take about 8,300 hours to walk around the entire earth without stopping, which in days is 345.83, almost a full year.
Explanation:
I think that full 5 or 6 years
PLZ HELP THIS IS FOR AN UNIT
Paul road his bike from the bottom of his street to his friend’s
house at the top of the hill on his street. He knew his PE was
5,000 J and ME was 25,000 J but wanted to find out his KE.
What is Paul’s KE energy on his bike ride to his friend’s house?
Answer:
5,000+25,000=
Explanation:
You need to plus it answer it now go girl #CarryOnLearninghow is the lens able to change its refractive power?
Answer:
The lens can sharpen the curvature of its front and back surfaces, increasing its focusing power.
Explanation:
A lens can change its refractive power through sharpening of the curvature of its front and back surfaces, thereby increasing its focusing power.
What is refractive power of lens?The optical power of a lens is the degree to which the lens is able to converge or diverge light.
The optical power of a lens is measured in Diopters, and obtained by taking the reciprocal of the focal length in meters.
P = 1/F
How lens changes its refractive powerA lens can change its refractive power through sharpening of the curvature of its front and back surfaces, thereby increasing its focusing power.
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In a friendly soccer game, you hit a ball with a speed of 13 m/s at an angle of 24 degrees above the horizontal. (A) How long does it take for the ball to reach the goal if it is 4.2 meters away? (B) How high is the ball when it reaches the goal?
a) V= 13m/s at 24 degrees
X component of velocity Vx= V*cos24 =11.876 m/s
distance =4.2 meter
time =distance/speed =4.2/11.876 =0.3537 s
b) Vertical component of speed = Vy=vsin24=
5.29 m/s
s=ut+0.5at^2 =5.29880.3537-0.5*9.8*0.3537^2
=1.257 m above ground
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Sally has a car that accelerates at 5 m/s2. If the car has a mass of 1000 kg, how much force does the car produce?
Answer:
5000 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
mass = 1000 kg
acceleration = 5 m/s²
We have
force = 1000 × 5 = 5000
We have the final answer as
5000 NHope this helps you
Answer:
The answer is 5000 N (Newtons).
Explanation:
F=M*A
F=1000 kilograms * 5 m/s squared
F=5000 Newtons
5. It takes Billy 10 minutes to run 1 mile. What is his speed in miles
per minute?
Answer:
0.1 miles
Explanation:
1mile/10 minutes
to get some miles/1 minute:
since you divided the 10 minutes to get 1 minute you also divide the 1 mile by 10 to get the number of miles per minutes
ei 1/10 = 0.1 miles
A pugdoodle runs 120 meters
in 18 seconds. What was its
speed?
Answer:
6.66666 sec/m or 6 2/3 sec/m
Answer:
6.67 meters per second
Explanation:
120/18=6.67 meters per second
if an inelastic collision takes place, during the collision, what is conserved?
Answer:
An inelastic collision is a collision in which there is a loss of kinetic energy. While momentum of the system is conserved in an inelastic collision, kinetic energy is not.
Explanation:
a. Define displacement
b. Use the definition of displacement to explain how it is possible for an athlete to run round a track yet have no displacement
Answer:
definition: the moving of something from its place or position.
Explanation:
though moving around a track they will always end in the same place therefore there is no displacement from the beginning position
There is no displacement from the starting position because they will always wind up in the same place as they started.
What is displacement?Displacement is defined as the overall alteration of an object's location and motion direction. Displacement is recognized as a vector quantity since it takes into account both the direction of the motion and the magnitude of the changing position. Displacement may be zero, positive, or negative.
The initial and final positions are needed in order to calculate displacement because displacement does not provide comprehensive information on the full path length.
The displacement is the shortest distance from the starting point to the finish point, the athlete starts from the start line and reaches the finish line after running through the whole track, but the starting point and the finishing point are the same, so the displacement is zero.
Therefore, the displacement of the athlete running through the track is zero for a complete race.
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Describe how acceleration happens in the context of a collision.
Plz help<3
Answer:
(Hope this helps can I pls have brainlist (crown)☺️)
Explanation:
In a collision, both objects are subjected to a force that causes them to accelerate. Despite the fact that the forces are equal in magnitude and direction, the least massive item experiences the highest acceleration. When two objects of identical mass collide, they both experience the same acceleration.
A collision is a brief encounter between two or more bodies that results in a change in motion of the bodies involved as a result of internal forces acting between them. Forces are involved in collisions (there is a change in velocity ).
a spacecraft that seems to be motionless in deep space is given some type of quick push. which statement describes what will happen?
An applied force applied causes a body such as the spacecraft to move. The magnitude of the force determines the change in the velocity
What will happen to the spacecraft is given by option C. from among the possible question options.
C. The spacecraft will begin to move and it will continue moving until it is stopped by an equal and opposite force
Reason:
The possible question options obtained from a similar question includes;
A. The spacecraft will move for some time then stop slowly
B. Air resistance will prevent the spacecraft from moving
C. The spacecraft will begin to move and the motion will continue until a force equal and opposite to the applied force stops it
D. The quick push will not cause the spacecraft to move, as a quick push works on Earth only
The state of the space craft = Motionless
Location of the spacecraft = Deep space
Type of force applied = Quick push
The statement that describes what will happen = Required
Solution;
Let F, represent the force applied, and let Δt be the duration of the applied force, we have;
The impulse of the force, F × Δt = m·(v₂ - v₁)
Where;
m = The mass of the spacecraft
v₁ = The initial velocity of the spacecraft = 0
v₂ = Final velocity of the spacecraft
Plugging in v₁ = 0, gives;
F × Δt = m·v₂
The space craft is given a velocity, v₂, and according to Newton's First Law of Motion, it continues moving in a straight line until another force acts on it
Therefore, the correct option is option C. The spacecraft will begin to move and the motion will continue until it is stopped by an equal and opposite force
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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:
NEED HELP!!!!!!! 13 POINTS!!!!
Alana wants to add some eccentric exercise to her routine. She has heard that pull ups are good, but she does not have a lot of upper body strength and thinks that is going to be too challenging. She wonders if she can start by just hanging on at the top with her chin above the bar and holding that pose to get the benefits. What is the BEST response to Alana?
A.
Any activity that works the arms is eccentric exercise.
B.
That might build strength, but it is not eccentric exercise.
C.
She will get all of the benefits because grasping the bar key.
D.
She needs to do something else as pull-ups are not eccentric exercise.
Answer:
the answer should be B
Explanation:
i got it right on edmentum
A large cooler full of ice and drinks has a mass of 105 kg and a coefficient of static friction with the floor of 0.688. How much force will be required to move the cooler across the ground?
Answer:
Explanation: actually for moving it in an CONSTANT velocity u need a zero accleration
F-f=ma,a=0 hence F=f=Nα=mgα=1,495.63 N
Choose a starting point in United states to sail back to Africa. Determine the wind and current correction vectors that would take a ship there. Tell how many months it took to reach land.
Answer:
I personally think the answer is 5 because if you look at it its 5
NEED HELP!!! 11 POINTS!!!
Based on Newton’s third law of motion, will a tennis ball go farther if it hits a tennis racquet that is still or one that is in motion?
OPTIONS:
A.
One that is still because it will absorb all of the force of the ball.
B.
One that is still because that will have a greater impact on the trajectory.
C.
One that is in motion because both the ball and the racquet will contribute momentum.
D.
One that is in motion because the racquet’s force will cancel the ball’s force out.
Answer:
c
Explanation:
because if a tennis ball hit a tennis racket still it would not go anywhere. with the tennis ball hitting the moving racket it will go further
One that is in motion because both the ball and the racquet will contribute momentum.
Thus, option (c) is correct.
Newton's third law of motion states that for every action, there is an equal and opposite reaction.
When the tennis ball hits a tennis racquet in motion, both the ball and the racquet will exert forces on each other in opposite directions.
This interaction will result in a transfer of momentum from the racquet to the ball and vice versa, potentially giving the ball a greater momentum and therefore potentially causing it to go farther.
Thus, option (c) is correct.
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3 situations that give friction a “bad reputation”
please help i'll mark the brainlest
What are two projects that X decided to "kill"? Why did they abandon these projects
sorry,pls I don't understand
someone help me please
Answer:
The moon is being pulled to the earth by gravity, so the net force makes a circular pattern.
Explanation:
The force of gravity is a force that pulls objects toward the centre of the earth. The acceleration due to gravity of the moon is about 1.6 metre per second square which is comparatively smaller than the earth's 10metre per second. Therefore, the moon isn't completely pulled to the centre of the earth, but orbits around the earth
How much force (in Newtons) acts on a 1700 kg car going around a
80 m radius turn at a speed of 15 m/s?
a) 375
b) 4781
c) 1167
d) 319
Answer:
b) 4781 N
Explanation:
Because there is a redius do this question is talking about the acceleration force which= mv^2/r
so a=15^2/80=2.8125 m^2/s
so the force will be = m.a
F =1700×2.8125=4781.25 N
the pressure of a gas is inversely proportional to
Answer: The pressure of a gas is inversely proportional to its volume.
Explanation:
One way to state Boyle's law is “All other things being equal, the pressure of a gas is inversely proportional to its volume.”
Answer:
One way to state Boyle's law is “All other things being equal, the pressure of a gas is inversely proportional to its volume.”
Explanation:
Hope this helps.
If y = ab, then find the maximum percentage error in the measurement of y.
Answer:
(Δa/a +Δb/b) × 100
Explanation:
Y= a/b
So, maximum percentage error
Δy/y = ( Δa/a + Δ b/b) × 100
Plz, Mark me as the brainlest
HELPPPP
The graph is the path Beth took on a walk.
A graph with horizontal axis time (seconds) and vertical axis position in (meters). The line runs in 2 straight segments from 0 seconds 2 meters to 6 seconds 8 meters to 10 seconds 0 meters.
What does the line from time 6 to 10 indicate?
A. Beth slowed down considerably.
B. Beth turned around and went the other direction.
C. Beth sped up considerably.
D. Beth went farther away from the origin.
Answer:
3
Explanation:
3
Answer:
B. Beth turned around and went the other direction.
Explanation:
Trust Me
(I answered this yesterday but put it in comments, wow I am NOT tech savvy!)
An elevator accelerates upward at 1.2 m/s 2 . the acceleration of gravity is 9.8 m/s 2 . what is the upward force exerted by the floor of the elevator on a(n) 62 kg passenger? answer in units of n.
Answer:
Explanation:
Fr= Fn-P
ma=Fn-mg
Fn= m(a+g)
Fn=62(1.2+9.8)
Fn= 682N
Question 1(Multiple Choice Worth 2 points)
(02.07 MC)
Which of the following steps is required after biological processes have broken down organic material in wastewater?
A- Bar screening
B- Grit screening
C- Primary clarifiers
D- Disinfection
Answer:
The answer is c
Explanation:
i had the same question and you have to believe me and if you don't that will be on you
A student is given a red and a blue liquid. The two samples of liquids are
heated in identical beakers over identical Bunsen burners. The red liquid
shows a dramatically faster increase in temperature. Which of these is the
most likely explanation for this? *
O A) The red liquid has a greater mass.
O B) The blue liquid has a smaller mass.
O C) The red liquid has a greater specific heat.
OD) The red liquid has a smaller specific heat
When a substance has smaller specific heat it needs less heat to shows changes in it hence making the option D correct.
Answer:
option D) the red liquid has a smaller specific heat
Explanation:
what is an asteroid called that is smaller than a couple meters wide?
Answer:
Meteoroids
Explanation:
Meteoroids are significantly smaller than asteroids, and range in size from small grains to one-meter-wide objects. Objects smaller than this are classified as micrometeoroids or space dust.
The term by which an asteroid called is smaller than a couple of meters wide is a meteorite.
What are meteorites?A meteorite is a small group of rocks and debris. They are made by the collection of dust and small pebbles. They are smaller than asteroids, and they are formed in outer space, and they fall on earth from outer space, and when they fall into the earth with that great speed, they attain heat.
Meteorites also consist of metals, like nickel, carbides, sulfides, etc. It has been said that in old times the meteorite that contain iron, fall into the earth and the iron from them melted into the core of the earth. They are of different shapes and sizes.
Thus, the term by which an asteroid called is smaller than a couple of meters wide is a meteorite.
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1. Lava Bombs A volcano shoots out blobs of molten lava, called lava bombs, from its summit, as shown in Figure 3.33. A geologist observing the eruption uses a stopwatch to time the flight of a lava bomb that is projected straight upward. If the time for it to rise to its maximum height is 2.38 s and its acceleration is 9.81 m/s-downward, what was its initial speed?
Answer:
46.55m/s
Explanation: