Answered: b) An electron moving along the x-axis…

Name: b) An electron moving along the x-axis has a position from the origin
Uploaded: 2024-03-05T11:56:34.000Z
Channel: Bartleby
Description: b) An electron moving along the x-axis has a position from the origin given by x = 7+ 2tetm, where tis in seconds.i) When does the electron momentarily come to a stop?ii) How far is the electron from its initial position at t= 0 when it momentarily

Science

Physics

b) An electron moving along the x-axis has a position from the origin given by x =7+2te t m, where t is in seconds. i) When does the electron momentarily come to a stop?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter6: Motion In Two Dimensions

Section: Chapter Questions

Problem 84A

See similar textbooks

Related questions

Q: Traffic shock wave. An abrupt slowdown in concentratedtraffic can travel as a pulse, termed a shock…

Q: Problem S: A car of mass m = 1100 kg is traveling down a 6 = 15 degree incline. When the car's speed…

Q: You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock…

A: Consider the time taken for rock to come back t = 4 s Consider the initial speed of the rock is u…

Q: The position of a box sliding down the spiral can be described by r [2 sin (2t)i + 2 cos tj- 2t'k]…

Q: A particle r = (2t3+ 3t) i + (4 - 5t2) j - t4 k Position depending on time given position moves with…

A: Given quantities: position vector (r) = ( 2t3 + 3t ) i + ( 4 - 5t2 ) j - t4 k Let, the distance…

Q: 1. ssm Two trees have perfectly straight trunks and are both growing perpendicular to the flat…

A: It is known that the magnitude of displacement is the length of the straight line joining the…

Q: In 1939 or 1940, Emanuel Zacchini took his human-cannonball act to an extreme: After being shot from…

A: The time required to travel the horizontal range 26m is

Q: External stimuli are communicated to the brain by means of electrical signals propagating along with…

A: As we know,speed is the ratio of distance travelled by time taken.

Q: 2. A projectile fired at O follows a parabolic trajectory (Fig. 1), given in parametric form by x=…

Q: A man starts walking north at 4f t/s from a point P. Five minutes later a woman starts walking south…

A: Answer Since we know the man is walking 4ft/sec from point P, he is a total of 4800 ft from point P…

Q: (2) tourist throws a rock horizontally off the edge a high diff, with an initial velocity of lo m.s!…

Concept explainers

Displacement, Velocity and Acceleration

In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.

Linear Displacement

The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.

Topic Video

Question

b) An electron moving along the x-axis has a position from the origin given by x = 7+ 2tet
m, where t
is in seconds.
i) When does the electron momentarily come to a stop?
ii) How far is the electron from its initial position at t= 0 when it momentarily stops?

Expert Solution

Step 1

Using relation between displacement and velocity

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

A pirate has buried his treasure on an island with five trees located at the points (30.0 m, 20.0 m), (60.0 m, 80.0 m). (10.0 m, 10.0 m), (40.0 m, 30.0 m), and (70.0 m, 60.0 m), all measured relative to some origin, as shown in Figure P3.46. His ships log instructs you to start at tree A and move toward tree B, but to cover only one-half the distance between A and B. Then move toward tree C, covering one-third the distance between your current location and C. Next move toward tree D, covering one-fourth the distance between where you are and D. Finally move toward tree E, covering one-fifth the distance between you and E, stop, and dig. (a) Assume you have correctly determined the order in which the pirate labeled the trees as A, B, C, D, and E as shown in the figure. What are the coordinates of the point where his treasure is buried? (b) What If? What if you do not really know the way the pirate labeled the trees? What would happen to the answer if you rearranged the order of the trees, for instance, to B (30 m, 20 m), A (60 m, 80 m), E (10 m, 10 m), C (40 m, 30 m), and D (70 m, 60 m)? State reasoning to show that the answer does not depend on the order in which the trees are labeled. Figure P3.46
After a ball rolls off the edge of a horizontal table at time t = 0, its velocity as a function of time is given by v=1.2i9.8tj where v is in meters per second and t is in seconds. The balls displacement away from the edge of the table, during the time interval of 0.380 s for which the ball is in flight, is given by r=00.3803vdt To perform the integral, you can use the calculus theorem [A+Bf(x)]dx=Adx+Bf(x)dx You can think of the units and unit vectors as constants, represented by A and B. Perform the integration to calculate the displacement of the ball from the edge of the table at 0.380 s.
At t = 0, a particle moving in the xy plane with constant acceleration has a velocity of vi=(3.00i2.00j)m/s and is at the origin. At t = 3.00 s, the particles velocity is vf=(9.00i+7.00j)m/s. Find (a) the acceleration of the particle and (b) its coordinates at any time t.
A student at the top of a building of height h throws one ball upward with a speed of vi and then throws a second ball downward with the same initial speed vi. Just before it reaches the ground, is the final speed of the ball thrown upward (a) larger, (b) smaller, or (c) the same in magnitude, compared with the final speed of the ball thrown downward?
(a) Repeat the problem two problems prior, but for the second leg you walk 20.0 m in a direction 40.0° north of east (which is equivalent to subtracting B from A that is, to finding R=AB ). (b) Repeat the problem two problems prior, but now you first walk 20.0 m in a direction 40.0° south of west and then 12.0 m in a direction 20.0° east of south (which is equivalent to subtracting A from B that is, to finding R=BA=R ). Show that this is the case.
A man on a motorcycle traveling at a uniform speed of 10 m/s throws an empty can straight upward relative to himself with an initial speed of 3.0 m/s. Find the equation of the trajectory as seen by a police officer on the side of the road. Assume the initial position of the can is the point where it is thrown. Ignore air resistance.
The position of a particle moving along the x -axis varies with time according to x(t)=5.0t24.0t3 . Find (a) the velocity and acceleration of the particle as functions of time, (b) the velocity and acceleration at t=2.0s , (c) the time at which the position is a maximum, (d) the time at which the velocity Is zero, and (e) the maximum position.
A particle has a nonzero acceleration and a nonzero constant speed at all times. What is the angle between the particles velocity and acceleration?
A particle travels in a circle of radius 10 m at a constant speed of 20 m/s. What is the magnitude of the acceleration?
(a) A daredevil is attempting to jump his motorcycle over a line of buses parked end to end by driving up a 32° ramp at a speed of 40.0 m/s (144 km/h). How many buses can he clear if the top of the takeoff ramp is at the same height as the bus tops and the buses are 20.0 m long? (b) Discuss what your answer implies about the margin of error in this act—that is, consider how much greater the range is than the horizontal distance he must travel to miss the end of the last bus. (Neglect air resistance.)
A particle initially located at the origin has an acceleration of a=3.00jm/s2 and an initial velocity of vi=5.00im/s. Find (a) the vector position of the particle at any time t, (b) the velocity of the particle at any time t, (c) the coordinates of the particle at t = 2.00 s, and (d) the speed of the particle at t = 2.00 s.
A celebrated Mark Twain story has motivated contestants in the Calaveras County Jumping Frog Jubilee, where frog jumps as long as 2.2 m have been recorded. If a frog jumps 2.2 m and the launch angle is 45, find (a) the frogs launch speed and (b) the time the frog spends in the air. Ignore air resistance.