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In the given position-versus-time graph, the object moving the slowest without being at rest is at point B.
A position-versus-time graph illustrates how far an object has traveled from its starting position at any given time since it started moving. The vertical axis represents the position of the object, and the horizontal axis represents the time.
The slope of the graph indicates the speed of the moving object. Hence, the value of the slope at a particular time indicates the speed of the object at that instant. Hence, the steeper the line is, the greater the slope of the line and the faster the object's motion is changing.
In the given graph, at point A, C and E the slope is zero the object is not moving, hence at rest. At point D slope is steeper as compared to slope at point B. Hence, object is moving slower at point B compared to point D.
Note: The question is incomplete. The complete question probably is: The figure shows the position-versus-time graph for a moving object. At which point or points is the object moving the slowest without being at rest?
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Related Questions
Two points in a rectangular coordinate system have the coordinates (5.0, 2.7) and (−3.1, 5.5), where the units are centimeters. Determine the distance between these points.
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Answer:
V2 = 5.0 i + 2.7 j
V1 = -3.1 i + 5.5 j vector description of points in question
Or (X2 - X1) = 5.0 - (-3.1) = 8.1 distance between x-coordinates
(Y2 - Y1) = 2.7 - 5.5 = -2.8 distance between y-coordinates
S = [(X2 - X1)^2 + (Y2 - Y1)^2]^1/2
S =[(8.1^2 + (-2.8)^2)]^1/2 = (8.1^2 + 2.8^2)^1/2
S = 73.45^1/2 = 8.57
Which of the following velocity versus time graphs best represents the motion of a ball that was thrown upward, from just after it was thrown until just before it is caught on the way down?
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Based on the provided information, the velocity versus time graph that best represents the motion of a ball is option D.
Velocity versus time graph refers to a graph that depicts the change in velocity over a period of time. It is used to understand both the velocity of an object, its direction, its acceleration, and the displacement of the object. The velocity in a constant acceleration motion is a linear function of time and is given by:
v = u + at
where v is the velocity at time t, u is the initial velocity, a is the acceleration, and t is the time.
As the ball is influence by gravitational acceleration, a = -g, hence
v = u – gt
Velocity will decrease initially based on the equation v = u – gt, hence the graph does not start from origin because u is not zero and is thrown with some velocity and v is final velocity. The velocity will be positive initially when the ball is moving upward and is decreasing until it goes to zero.
Then, it reverses its sign when moving downward until it is caught having the same initial speed (negative velocity). When v = 0, then t = u/g the v will become zero then it will start increasing in opposite direction, If the upward direction is taken as positive then the downward velocity will be negative. The graph is a straight line consistent with the constant acceleration motion under the action of gravity.
At a certain point, velocity becomes negative and get increasing. Hence option D is correct.
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ball falls from height of 19.5 m hits the floor, and rebounds vertically upward height of 15.5 m. Assume that mball What is the impulse (in kg M/s) delivered to the ball by the floor? magnitude mls direction Select '400 kg: If the ball Is In contact wlth the floor for 0400 seconds; what the average farce (In N) the floor exerts on the ball? magnltude direction
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The average force exerted on the ball by the floor is equal to the impulse divided by the duration of contact, or 1000 N.
Assuming the ball has a mass of 400 kg and that it is in contact with the floor for 0.4 seconds, the impulse delivered to the ball by the floor is 400 kg m/s.
The average force exerted on the ball by the floor is equal to the impulse divided by the duration of contact, or 1000 N. The direction of the force is opposite to the direction of the ball's motion, which is in the downward direction.
The impulse delivered to the ball by the floor is calculated by multiplying the mass of the ball (400 kg) by the change in velocity of the ball, which is the difference between its initial velocity (zero) and its final velocity (after striking the floor). This gives us an impulse of 400 kg m/s.
The average force exerted on the ball by the floor is then calculated by dividing the impulse by the duration of contact (0.4 seconds). This gives us an average force of 1000 N, directed in the opposite direction of the ball's motion.
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a ball is tied to a string and swung so that the ball follows a circular path that lies in a horizontal the following statements is true in an inertial reference frame, i.e. a reference frame that is at rest with respect to the earth?
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A: "The ball has changing velocity & changing acceleration" is true in regard to inertial reference frame.
The ball has changing acceleration and changing velocity in an inertial reference frame. As it moves in a circular path, it experiences a centripetal acceleration directed towards the center of the circle, which changes its velocity direction. This means the velocity of the ball is not constant in an inertial reference frame and is constantly changing, which is why the acceleration is also changing.
"
Complete question
A ball is tied to a string and swung so that the ball follows a circular path that lies in a horizontal the following statements is true in an inertial reference frame, i.e. a reference frame that is at rest with respect to the earth?
A: The ball has changing velocity & changing acceleration
B: The ball has changing velocity & constant acceleration
C: The ball has constant velocity & changing acceleration
D: The ball has constant velocity & constant acceleration
"
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DRAW the lines of convergence and area of convergence in this picture
PLEASE HELPPP
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It is possible to identify the line of convergence by drawing straight lines down the blood spatter's long axis and noting where the lines intersect.
Where do these two things converge?Area of Convergence,the region where lines connect the long axes of distinct stains to produce intersections, which in two dimensions shows where the blood source is.An area of origin is the point in space where a bloodstain first appeared.If the blood spatter contains at least two drops, the source of the blood can be located. It is possible to identify the line of convergence by drawing straight lines down the blood spatter's long axis and noting where the lines intersect.It is possible to identify the line of convergence by drawing straight lines down the blood spatter's long axis and noting where the lines intersect.The complete question is,
What is forensics along the line of convergence?
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The SST’s initial operating temperature was 5.5 K. At what wavelength (in micrometers) does the telescope’s own blackbody emission peak? How does this wavelength compare with the wavelength range in which the telescope is designed to operate?
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We can calculate the wavelength of the peak as follows:
λmax = 2.898 x 10^-3 μm K / 5.5 K = 0.526 μm
So, the wavelength of the peak is 0.526 μm.
What type of wavelength is this?The above wavelength is in the far-infrared range, which is different from the wavelength range in which the SST is designed to operate. The SST operates in the submillimeter range, which is significantly longer than the wavelength of the blackbody emission peak.
How does this wavelength compare with the wavelength range in which the telescope is prepared to work?The wavelength of the blackbody emission peak does not compare favourably with the wavelength range in which the telescope is designed to operate. The telescope must be cooled to reduce its blackbody emission to operate effectively in the submillimeter range.
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Henry’s first history exam score is +1 standard deviation from the mean in a normal distribution. The test has a mean of 65 and a standard deviation of 5. Henry’s percentile rank would be approximately: Group of answer choices None of these choices. 55%. 84%. 70%.
Answers
Answer:
84
Explanation:
+1 S.D z-score corresponds to .8413 .... from z-score table
this is 84 percentile
A control volume is a special type of closed system that does not interact in any way with its surroundings. FALSE
Answers
The given statement is false
What is closed system?
A system can be either closed or open: A closed system is a system that is completely isolated from its environment.A closed system is that in which only the exchange of energy is allowed but the exchange of matter is not allowed. Example-When we boil water with a closed lid, the heat can exchange but matter cannot.There are two types of systems: open and closed. An open system is one in which energy can be transferred between the system and its surroundings. The stovetop system is open because heat can be lost into the air. A closed system is one that cannot transfer energy to its surroundings.An open system can exchange both energy and matter with its surroundings. The stovetop example would be an open system, because heat and water vapor can be lost to the air. A closed system, on the other hand, can exchange only energy with its surroundings, not matter.To learn more about closed refers to:
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Technician A says that when replacing a rear hatch window with defroster grids, the
wiring connection may have a locking tab that will need to be released before
removal.
Technician B says that when replacing a rear hatch window with hydraulic lift struts,
the struts should be completely compressed before removal.
Who is right?
A only
B only
Both A and B
Neither A nor B
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Technician A only is tight as hen replacing a rear hatch window with defroster grids, the wiring connection may have a locking tab that will need to be released before removal.
Who is a Technician?A technician is someone with expertise and training in a technical procedure. You might need to contact a network technician if your computer network is giving you problems.
A technician is familiar with all of the technical details (ins and outs) of a particular process. A computer technician is an expert in both operating and repairing computers. Similar to a mechanic, an automotive technician is well-versed in cars and how to repair them. Technology and technicians are not always synonymous. A painter or musician may also be referred to as a technician if they have received training in a variety of artistic or musical techniques.
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Which of the following Gaussian surfaces would be the simplest to use to determine the electric field intensity near a long, straight, charged wire? A cylinder whose axis coincides with the wire A cylinder whose axis is perpendicular to the wire and passes through the wire A sphere with the wire through its center A cube with the wire passing through the centers of opposite faces
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Gaussian surfaces would be the simplest to use to determine the electric field intensity near a long, straight, charged wire, is a cylinder whose axis coincides with the wire.
The Gaussian surface is known as a closed surface in three-dimensional space such that the flux of a vector field is calculated.
Take a uniformly charged straight wire that has a linear charge density λ and Length (L). Make an assumption of a cylindrical Gaussian surface to calculate the electric field. The electric flux across the end of the cylindrical surface would be zero because of the electric field E s circular in direction.
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