# When the bus decelerates uniformly at 5 point 3 m per s2 it slows from 8.5 m per s to 0 m per s what is the time interval of acceleration for the bus?

Vf = V0 + at --> 0 = (8.5 m/s) - (5.3 m/s²)t -> t = (8.5
m/s)/(5.3 m/s²) = **1.60377 s**

### What answer of A car accelerates uniformly from rest after five seconds its final velocity is twenty meter per second its acceleration during third second will be?

So it's acceleration is 4m/s2. So at any point because it says uniformly, it will be accelerating at 4m/s2 each second

### A car traveling in a straight line has a velocity of plus 9 point 5 m per s After 3 point 5 s its velocity is plus 9 point 0 m per s What is the car's average acceleration in this time interval?

Average acceleration = (change in speed) divided by (time interval) A = (9.0 - 9.5) / (3.5) = (-0.5) / (3.5) = 0.14286 meter/sec2

### What object has velocity?

Any object which moves has velocity. Velocity is a vector quantity which includes direction so the object's velocity will change at every point in time if there is a nonzero acceleration. An object going around in circles uniformly will have a zero average velocity when measured as displacement over a time interval if the time interval is a multiple of the period of revolution. Speed is similar to velocity but is a scalar quantity independent… Read More

### A wheel of point 6 m in diameter is rotating at 100 rad per sec The wheel then decelerates uniformly from 100 rad per sec to 50 rad per sec in 50 revolutions Determine the rate of angular acceleration?

Angular acceleration is got by the expression alpha = {(final angular velocity)2 - (initial ang velocity)2} / 2 theta. final is 50 and initial is 100 rad/s. Theta is 50 x 2pi radian Therefore required alpha = -50 x 150/200 pi = -75/2pi radian/s2 Negative sign indicates that the rotation is decelrated.

### Why interval estimates are preferred over point estimates?

Interval estimates are generally to be preferred over point estimate

### What is Confidence Intervals of Interval Estimate?

An open interval centered about the point estimate, .

### Shall you please tell me hw the loads are taken by a beam?

loads are carried out as point load uniformly distributed load and uniformly varying load

### What is the hello interval?

The 'hello interval' is the time between hello packets, set in seconds as a parameter between two numbers, in OSPF routing timer protocols. The hello interval is the contacting-hello exchange between point A and Point B in computing, where a message is sent via an interface to a website or other computer point and returned to the user. Read about configuring routing timers for 'hello interval' and 'dead interval'.

### How do you determine if an interval is continuous?

A 1-dimensional interval (a, b) is continuous if for any k in (0, 1) the point a + k*(b-a) = a*(1-k) + k*b is also in the interval. This is equivalent to the statement that every point on the line joining a and b is in the interval. The above can be extended to more dimensions analogously.

### An object thrown upward has zero acceleration at the highest point?

No, the acceleration at the highest point is never 0.

### What happens to acceleration of pendulum at its lowest point of its swing?

The acceleration of a pendulum is zero at the lowest point of its swing.

### What is the difference between a line and an interval?

A line is never ending while a interval has a fixed end and start point.

### When as ball is thrown straight up the acceleration at its highest point is what?

The acceleration is always -9.81 m/s^2. At its highest point the velocity is zero, but its acceleration is always constant.

### Can equality or inequality define the interval on a number scale?

An equality defines a specific point (or points). An inequality can define an interval.

### What the shape of a segment of a circle?

An arc, which is a uniformly curved line with a common radii point.

### What is instantaneous acceleration'?

It is the limiting value of the rate of change in velocity as the time interval tends to zero.

### What equals to the constant velocity needed to cover the given displacement in a given time interval?

The required velocity is the given displacement/the given time interval in the direction from the starting point to the end point.

### Why is it important to pack the sublimate uniformly?

The melting point sample capillary tube has to be packed efficiently and uniformly, because air spaces can cause nonuniform heat transfer within the tube. This can inconsistency, with some parts of the sample melting before others, which results in poor reproducibility. A uniformly packed tube will melt consistently and evenly to give a sharp, reproducible melting point determination.

### On a speed time graph what measures acceleration?

The slope at each point on a speed/time graph is the magnitude of acceleration at that point in time.

### How can you find the acceleration from velocity time graph?

The gradient of the tangent to the velocity-time graph at any point is the acceleration at that point. If the v-t graph is a straight line then the gradient of that line is the acceleration.

### How do you calculate reactions for a simply supported beam loaded with a uniformly distributed load?

For finding reactions for simply supported beam with uniformly distributed load, first we have to convert the u.d.l into a single point load. And then we have to consider it to be a simply supported beam with a point load and solve it. I think you know how to calculate the reactions for beam with point load.

### Why you cannot take time period of simple pendulum as a standard time period?

Because length of the pendulum which is equal to distance between the point of suspension and g is the gravitational acceleration and a body repeats its to and fro motion in equal interval of time that's why we cant take standard time period.

### Is the acceleration of a body zero if stationary at some point?

Yes the acceleration is zero when the body is not moving.

### A swimmer speeds up from 1 point 1 m s to 1 point 3 m s during the last 20 s of a workout What is the swimmers acceleration during the last time interval?

Acceleration is the change in velocity with time. In the metric system it is measured in meters per second per second (meters/seconds squared). In your example just subtract the initial speed from the final speed and divide the difference by the time. So: 1.3 m/s - 1.1 m/s = 0.2 m/s. Divide 0.2 m/s by 20 s to get an acceleration of .01 m/s per s.

### What is the difference between point forecast and prediction interval forecast?

A point forecast is a single answer e.g. it is going to rain at 1pm. An interval forecast is based on uncertainity e.g. it is going to rain between 12pm and 2pm. An interval forecast is used because a forecast is always precisly wrong and appromatley right, y.e. don't give a precise answer because it will be wrong.

### Define intervals on the number scale?

An interval on the number scale is a set of numbers between two end-point. Thus the closed interval [a, b] comprises all number between a and b as well as the two end points. An interval is open if neither end point is included, and semi-open (or semi-closed) if one end in included and the other is not.

### Do acceleration and velocity always point in the same direction?

No. Acceleration is a change of velocity and doesn't have to point in the same direction. Consider braking car: it still moves with decreasing velocity in one direction, while braking force and thus acceleration is in the opposing direction.

### In an acceleration graph showing speed versus time a straight line shows the acceleration is?

A graph that shows speed versus time is not an acceleration graph. The slope of the graph at any point is the acceleration at that time. A straight line shows that the acceleration is constant.

### Definition of melting point range?

The interval between the beginning of liquefaction and complete liquefaction

### What is instantaneous accerlation?

that is acceleration at a particular point in time. If acceleration is changing with time, it is the slope of the velocity vs. time curve.

### What does it mean when f is differentiable at x equals 2?

what does it mean when f(x) is differentiable along an interval? it means that f is continuous along that domain. In other words, the curve f is smooth and does not break at any point along the interval. what does it mean when f(x) is differentiable at a point c? It means that f is continuous above the domain given by the interval that is an infinitesimally small distance from c. In other words the… Read More

### What does the slope of velocity time graph indicate?

The acceleration. If the slope is only at a certain point then it's instantaneous acceleration and if the slope is made from two points then it's an average acceleration.

### What is the difference between melting point and melting range?

Melting point is a specific and unique temperature for a material; melting range is an interval of temperature.

### Examples of constant speed but changing acceleration?

A body moving with constant speed in a circular path has acceleration changing at every point.

### An automobile with initial speed 4 point 15 m per s accelerates uniformly at 2 point 7 m per s 2 and after 4 point 8 s the final speed is 17 point 11 m per s what is the displacement after 4 point 8 s?

Since the car accelerates uniformly, its average speed during the interval is 1/2 (initial speed + final speed) = 1/2 (4.15 + 17.11) = 10.63 m/s. The distance covered is (average speed) x (time) = (10.63) x (4.8) = 51.024 meters. If the motion during the 4.8 seconds was all in the same direction along a straight line, then that same 51.024 meters is also the displacement during that time. If, instead, it happened to… Read More

### Does the acceleration changes direction after reaching the highest point?

No. The acceleration is a constant 9.8 m/s2 down the whole time because acceleration depends on the net force and the Earth did not change its pull.

### What is the acceleration when a particle move along circular path with constant speed?

When a particle is moving in uniform circular motion , its speed is constant . Velocity of particle changes from point to point due to change of direction of particle in uniform circular motion. This change in velocity vector leads to an acceleration which acts towards the center of circular path. The acceleration is known as Centripetal acceleration.

### How does a speed vs. time graph indicate acceleration?

acceleration is the slope of the speed vs time diagram at any point in time

### When a ball is thrown up what is the acceleration and velocity at the highest point?

When a ball is tossed straight up . . . -- The acceleration is 9.8 meters per second2 downward, from the time the ball leaves your hand until it hits the ground. The acceleration doesn't change. -- The velocity is zero with an arbitrary direction when the ball is at its highest point.

### What are the following terms-angular acceleration-centripetal acceleration-instantaneous acceleration-ballistic pendulum-angle of deviation-therionic emission of light-first law of thermodynamic?

instantaneous acceleration is the acceleration at one point. yeah, it's true

### How is speed and acceleration represented on a graph?

On a speed versus time graph, acceleration is represented by the line on the graph. If acceleration is constant, the line cuts through equally between the axis and starts from the zero point.

### Can a body have acceleration with zero velocity?

Yes, but only for an instant. For example, if you throw a stone up, when it is at its highest point it has a velocity of zero, but its acceleration is -9.8 m/s2. If there is acceleration, the velocity can not remain at zero.

### You can use a distance versus time graph to analyze the motion of an accelerating object?

The slope at any point is the velocity, so you can construct a graph of that. The slope at any point on that graph is the acceleration. So you can construct a graph of that. The slope at any point on that is the rate of change of acceleration. And so on.

### What is a temperature scale in which the interval between the freezing point and boiling point of water is divided into 180 equal parts?

Fahrenheit (32 degrees to 212 degrees)

### What advantages as a forecasting tool does exponential smoothing have over moving average?

When implemented digitally, exponential smoothing is easier to implement and more efficient to compute, as it does not require maintaining a history of previous input data values. Furthermore, there are no sudden effects in the output as occurs with a moving average when an outlying data point passes out of the interval over which you are averaging. With exponential smoothing, the effect of the unusual data fades uniformly. (It still has a big impact when… Read More