6: velocity i hpe this is what your looking for
An object's describes it's distance and direction from a reference point 2 : displacement
What is a vector quantity ?
A vector quantity is defined as the physical quantity that has both directions as well as magnitude.
if object is describing direction also , then it should be a vector quantity as it can not be scaler . Position , speed , motion all are scaler quantities
Along with direction it is also showing its distance , that means it must be displacement because When a body moves from one position to another, the shortest(straight line) distance between the initial position and final position of the body is known as its displacement and it is vector quantity .
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A skier is accelerating down a 30.0-degree hill at 3.80 m/s^2.
What is the vertical component of her acceleration? (in m/s^2)
What is the horizontal component of her acceleration? (in m/s^2)
plzzzz help
Answer:
ax = -3.29[m/s²]
ay = -1.9[m/s²]
Explanation:
We must remember that acceleration is a vector and therefore has magnitude and direction.
In this case, it is accelerating downwards, therefore for a greater understanding we will make a diagram of said vector, this diagram is attached.
[tex]a_{x}=-3.8*cos(30) = -3.29 [m/s^{2}]\\ a_{y}=-3.8*sin(30) = -1.9 [m/s^{2}][/tex]
Which new type of bacteria was introduced to Patient 23's gut microbiome?
Answer:
Gut flora
Explanation:
One particle has a charge of -1.87 x 10^ -9 while another particle has a charge of -1.10 x 10^ -9 If the two particles are separated by 0.05 m, what is the electromagnetic force between them?
Answer: 7.41 x 10^ -6 N
Explanation:
Thirty beats are heard in one minute when two notes are played together. If the higher note has a frequency of 740 Hz, what is the frequency of the lower note? h
a) 742 Hz
b) 738 Hz
c) 739.5 Hz
d) 740.5 Hz
The frequency of the lower note for the two notes which plays thirty beats in one minute when played together is 739.5 Hz.
What is beat frequency?Frequency of wave is the number of waves, which is passed thorough a particular point at a unit time.
When two sound waves having different values of their frequencies, approaches to ears, then the difference of these two frequency is known as beat frequency.
Thirty beats are heard in one minute when two notes are played together. As it is known that there is total 60 seconds in one minute. Hence, the number of beats heard in one second is,
[tex]f_b=\dfrac{30}{60}\\f_b=\dfrac{1}{2}\rm beats/sec\\f_b=\dfrac{1}{2}Hz[/tex]
The higher note has a frequency of 740 Hz. The beat frequency is the difference of both the frequency. Thus,
[tex]f_b=f_h-f_l[/tex]
Put the values as,
[tex]\dfrac{1}{2}=740-f_l\\f_l=740-\dfrac{1}{2}\\f_l=739.5\rm Hz[/tex]
Hence, the frequency of the lower note for the two notes which plays thirty beats in one minute when played together is 739.5 Hz.
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help me plssssssssssss!!!!!!!!
Answer:
A
Explanation:
because you need to be able to prove it
Olympic gold medalist Michael Johnson runs one time around the track 400 meters in 38 seconds what is his displacement what is his average velocity
a. Michael Johnson's displacement is 0 m
b. Michael Johnson's average velocity is 0 m/s
a. Michael Johnson's Displacement
Michael Johnson's displacement is 0 m
Since displacement, D = d' - d where
d = initial position and d' = final position.Let d = 0 m (Michael Johnson's starting point).
Since Michael Johnson runs one time round the track, his final position is his starting position. So, d' = 0 m
So, D = d' - d
D = 0 m - 0 m
D = 0 m
So, Michael Johnson's displacement is 0 m
b. Michael Johnson's average velocityMichael Johnson's average velocity is 0 m/s
Average velocity, v = D/t where
D = total displacement and t = total timeGiven that Michael Johnson runs one time round the track of 400 m in 38 s, D = 0 m and t = 38 s
So, v = D/t
= 0/38
= 0 m/s
So, Michael Johnson's average velocity is 0 m/s
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What are the different forms of treatments available for somatoform disorders?
Answer:
Treatment options include medications, particularly tricyclic antidepressants and SSRIs,21,22 and psychotherapy. Nonpharmacologic treatment strategies (e.g., massage, acupuncture) may also be beneficial. patients initially presented with symptomatic pain due to a shoulder injury.
Somatoform disorders can be treated by psychotherapy and through medications.
What are somatoform disorders?Somatoform disorders are a group of psychiatric disorders whereby patients have a wide variety of clinically significant but unexplained physical symptoms.
The treatment options for somatoform disorders include:
PsychotherapyMedications Yoga and meditationAcupunctureTherefore, somatoform disorders can be treated by psychotherapy and through medications.
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Cynthia and Marsha are standing still on top of a hill of the same height. Cynthia is a mass of 50 kg, and Marsha is a mass of 70 kg. Who has more potential energy?
A) Cynthia
B) Marsha
C) They both have the same potential energy
D) The both have no potential energy
Answer:
C) They both have the same potential energy
Explanation:
Marsha does more work than Cynita, but they have the same power rating.
A haiku about motion.....I need a haiku about motion...if someone like writing pls help, write a haiku about MOTION
Answer:
Motion is a powerful experience
Motion brings out the best in people
Motion can flow like oceans
Explanation:
1. The arctic tern flies from the Arctic to the Antarctic and back every year, a total distance of 22,000 miles! In late summer, the terns start their migration south, and it takes about 3 months to go the 11,000 miles. What is the average velocity, in miles per day, that these birds travel?
Answer:
The average velocity that these birds travel is 122.22 miles per day to the south.
Explanation:
Speed is the physical quantity that expresses the variation in position of an object and as a function of time. In other words, speed is a physical quantity that expresses the relationship between the space traveled by an object, the time used for it and its direction.
Speed is expressed mathematically as the quotient between distance and time:
[tex]v=\frac{d}{t}[/tex]
where "v" is the speed of the mobile, "d" is the distance traveled by the mobile, and "t" is the time taken by the mobile to carry out the movement.
In this case:
d= 11,000 milest=3 months= 90 days ( considering that in 1 month there are 30 days)Replacing:
[tex]velocity=\frac{11,000 miles}{90 days}[/tex]
velocity = 122.22 [tex]\frac{miles}{day}[/tex]
The average velocity that these birds travel is 122.22 miles per day to the south.
what is free nitrogen
Answer:
It is simply molecular nitrogen (N2). Nitrogen, in its molecular form, consists of two nitrogen atoms bound together with a tripple bond
Explanation:
Answer:
It is molecule nitrogen N2.
Explanation:
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equal forces that do not cause a change in an object's motion
Answer:
Balanced forces.
Explanation:
The three main forces that stop moving objects are friction, gravity and wind resistance. Equal forces acting in opposite directions are called balanced forces. Balanced forces acting on an object will not change the object's motion. When you add equal forces in opposite direction, the net force is zero.
Which of thr following is aharmful effectvof oil spills
relationship definition
Which is the best description of kinetic energy?
A: Stored energy
B: Energy of position
C: Energy of motion
D: Total energy
Answer:
C: Energy of motion
Explanation:
A 10 kg ball moving at 13 m/s strikes a 20 kg ball at rest. after the collision the 10 kg ball is moving with a velocity of 7m/s.what is the velocity of the second ball?
Answer:
30 (kg)
Explanation:
therefore the mass of the ball is 2 so 30 (kg)
The velocity of the second ball after it was struck by the first ball is 3m/s.
Given the data in the question;
Mass of ball 1; [tex]m = 10kg[/tex]Initial velocity of ball 1; [tex]u_1 = 13m/s[/tex]Final velocity of ball 1; [tex]v_1 = 7m/s[/tex]Mass 2; [tex]m = 20kg[/tex]Since ball to was at rest
Initial velocity of ball 2; [tex]u_2 = 0[/tex]Final velocity of ball 2; [tex]v_2 =\ ?[/tex]
To determine the velocity of the second ball, we use conservation of linear momentum:
[tex]m_1u_1 + m_2u_2 = m_1v_1 + m_2v_2[/tex]
We substitute our given values into the equation and solve for "[tex]v_2[/tex]"
[tex][10kg * 13m/s] + [ 20kg * 0] = [10kg * 7m/s] + [ 20kg * v_2] \\\\130kgm/s = 70kgm/s + [ 20kg * v_2]\\\\ 130kgm/s -70kgm/s = 20kg * v_2\\\\60kgm/s = 20kg * v_2\\\\v_2 = \frac{60kgm/s }{20kg} \\\\v_2 = 3m/s[/tex]
Therefore, the velocity of the second ball after it was struck by the first ball is 3m/s.
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If an object is moving with_____
velocity, then the
instantaneous velocity at every moment, the average velocity,
and the constant velocity are all the same.
Answer:
Constant Velocity
Four bowling balls are each rolled down lanes. Which of the following balls has the
highest inertia?
A.) A 1-kg ball rolling at 2 m/s
B.) An 8-kg ball rolling at 2 m/s
C.) A 3-kg ball rolling at 9 m/s
D.) A 2-kg ball rolling at 10 m/s
Answer:
B
Explanation:
The 8 kg ball rolling at 2m/s has the highest inertia.
The following information related to the inertia is:
It is the resistance with respect to the physical object for any change to the velocity. It involves the changes made to the speed of the object, direction of the motion.Therefore we can conclude that the 8 kg ball rolling at 2m/s has the highest inertia.
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TRUE OR FALSE- Doing sports activities as your Cardio Training can be just as effective or more effective than running on a treadmill.
For 15 Points.
its true
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An optician's test card is fixed at 90 cm behind the eyes of a patient who looks into a plane mirror which is at 300 cm in front of him as shown in the Mirror
Answer:
d = 690 cm
Explanation:
The complete question is:
An optician's test card is fixed at 90 cm behind the eyes of a patient who looks into a plane mirror which is at 300 cm in front of him as shown in the Mirror. At what distance is the card seen by the patient?
So, first of all we need to find the distance between the mirror and the chart. Since, the distance between mirror and person is 300 cm, while the distance between the same person and test card is 90 cm. So, the total distance between the test card and mirror will be 300 cm + 90 cm = 390 cm.
Hence, the image formed of test card in the mirror will be 390 cm behind the mirror. So, in order to find the distance between the person and the image of test card we have to add the distance between person (300 cm) and mirror to this value.
distance between person and image of card = d = 390 cm + 300 cm
d = 690 cm
Explain why your hand feels hot when you touch a hot pan. Use the terms source and sink.
Answer:
Explanation:
Warmth or a burning sensation in your hands can also be a symptom of peripheral neuropathy. This condition involves nerve dysfunction due to nerve damage from an underlying condition. Other symptoms may include: tingling in the hands or feet
Answer:
Because when you hand touches it the fire has been heating up the pan so it’s hot
Explanation:
A 0.5kg hammer hits the head of a nail with a force of 25N. What is the force the head of the nail is doing on the hammer?
Answer:
25N
Explanation:
The force the head of the nail is doing on the hammer is 25N. This is based on the newton's third of law of motion.
It states that "action and reaction are equal but opposite in direction".
A body exerting a force of 25N on another will get a reaction force of an equal but negative magnitude of force in the opposite direction.
An initially stationary object experiences an acceleration of 6 m/s2 for a time of 15 s. How far will it travel during that time? Use this formula to solve: x = xo + vo t + ½ a t 2
Answer:
The object will travel 675 m during that time.
Explanation:
A body moves with constant acceleration motion or uniformly accelerated rectilinear motion (u.a.r.m) when the path is a straight line, but the velocity is not necessarily constant because there is an acceleration.
In other words, a body performs a u.a.r.m when its path is a straight line and its acceleration is constant. This implies that the speed increases or decreases uniformly.
In this case, the position is calculated using the expression:
x = xo + vo*t + ½*a*t²
where:
x0 is the initial position. v0 is the initial velocity. a is the acceleration. t is the time interval in which the motion is studied.In this case:
x0= 0v0= 0 because the object is initially stationarya= 6 [tex]\frac{m}{s^{2} }[/tex]t= 15 sReplacing:
x= 0 + 0*15 s + ½*6 [tex]\frac{m}{s^{2} }[/tex]*(15s)²
Solving:
x=½*6 [tex]\frac{m}{s^{2} }[/tex]*(15s)²
x=½*6 [tex]\frac{m}{s^{2} }[/tex]*225 s²
x= 675 m
The object will travel 675 m during that time.
An object is moving at a constant velocity of 10 m/s for 5 seconds. What is
its acceleration during this time?
initial velocity (u)=0m/s
final velocity (v)=10m/s
time( t)=5s
acceleration (a)=v-u÷t
acceleration (a)=10-0÷5
acceleration (a)=10÷5
acceleration (a)=2
therefore acceleration (a)=2m/s
If 30C of charge is flowing through a circuit in 2 minutes, what is the current?
Answer:
0.25A
Explanation:
Given parameters:
Quantity of charge = 30C
Time taken = 2minutes = 2 x 60 = 120seconds
Unknown:
Current through the circuit = ?
Solution:
To find the current through the circuit, use the expression below;
I = [tex]\frac{Q}{t}[/tex]
Q is the quantity of charge
t is the time taken
Now, insert the parameters and solve;
I = [tex]\frac{30}{120}[/tex] = 0.25A
why is defense important in basketball
facts about earths rotation
Answer:
♡ hi fairy ♡
-- The Earth's rotation is gradually slowing.
The Earth was once believed to be the centre of the universe.
Earth has a powerful magnetic field.
There is only one natural satellite of the planet Earth.
Earth is the only planet not named after a god.
The Earth is the densest planet in the Solar System.
~ madeline
✧･ﾟ: *✧･ *:･ﾟ✧* ✧･ﾟ: *✧･ *:･ﾟ✧* ✧･ﾟ: *✧･ *:･ﾟ✧*
Explanation:
Answer:
it take 24 hours to rotate fully
Explanation:
What are carbon-12, carbon-13, and carbon-14?
Answer:
They are all Carbon isotopes. Carbon 13 has 6 protons and 7 neutrons
Explanation:
Hope this was helpful! :)
why would a bicycle fairing be helpful on a hand powered vehicle
Answer: AERODYNAMIC BENEFITS
Explanation: The reason why a bicycle fairing will be helpful on a hand powered vehicle is because the fairing design is very important that is a long and also sealed fairing provides the best compensation for the added weight. However,for road riding,a tailbox may actually will not be able to repay the weight penalty.
A child on a high dive has a mass of 40 kilograms. If the high dive is 10 meters in the air, what is the potential energy? GPE=mgh
Answer:
Ep = 3924 [J]
Explanation:
To calculate this value we must use the definition of potential energy which tells us that it is the product of mass by the acceleration of gravity by height.
[tex]E_{p}=m*g*h\\[/tex]
where:
Ep = potential energy [J] (units of Joules)
m = mass = 40 [kg]
g = gravity acceleration = 9.81 [m/s²]
h = elevation = 10 [m]
[tex]E_{p} =40*9.81*10\\E_{p} = 3924 [J][/tex]
