An electron's position is given by r = 3.00ti 4.00t 2 j + 2.00k, with t
Question:
An electron's position is given by r = 3.00ti – 4.00t2j + 2.00k, with t in seconds and r in meters.
(a) In unit vector notation, what is the electron's velocity v (t)? At t = 2.00 s, what is v
(b) In unit-vector notation and as
(c) A magnitude and
(d) An angle relative to the positive direction of the x axis?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 72% (18 reviews)
To emphasize the fact that the velocity is a function ...View the full answer
Answered By
Bhartendu Goyal
Professional, Experienced, and Expert tutor who will provide speedy and to-the-point solutions. I have been teaching students for 5 years now in different subjects and it's truly been one of the most rewarding experiences of my life. I have also done one-to-one tutoring with 100+ students and help them achieve great subject knowledge. I have expertise in computer subjects like C++, C, Java, and Python programming and other computer Science related fields. Many of my student's parents message me that your lessons improved their children's grades and this is the best only thing you want as a tea...
3.00+
2+ Reviews
10+ Question Solved
Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Question Posted:
Students also viewed these Mechanics questions
-
A firms short-run revenue is given by R = 10 e - e 2 , where e is the level of effort by a typical worker (all workers are assumed to be identical). A worker chooses his level of effort to maximize...
-
Ball B, moving in the positive direction of an x axis at speed v, collides with stationary ball A at the origin. A and B have different masses, after the collision, B moves in the negative direction...
-
A force F in the positive direction of an x axis acts on an object moving along the axis. If the magnitude of the force is F = 10ex/2.0 N, with x in meters, find the work done by F as the object...
-
1. If net profit is $47,025; depreciation is $2,200; accounts receivable increases $5,056; accounts payable increases $4,673; and inventory declines $850; what is the operating cash flow for the...
-
What are the consequences for growth of diminishing returns to capital? How are some economies able to maintain high growth rates despite diminishing returns to capital?
-
Refer to Exercise 15.24. Based on the residuals from the fitted model, do the model conditions appear to be satisfied? Attitude Type of Workshop 2 38 37 42 5 Mean 42 47 42 52 54 50 55 62 42.8...
-
Looking at the days (rows) as blocks, rework Exercise 12.5 by the method of Section 12.3. Data From Exercise 12.5 12.5 The following are the numbers of mistakes made in 5 successive days for 4...
-
A beaker filled with an equimolar liquid mixture of ethyl alcohol and ethyl acetate evaporates at O?C into still air at 101 kPa (1 atm) total pressure. Assuming Raoult's law applies, what will be the...
-
The Janobi Company has three product lines of beer mugs-A, B, and C-with contribution margins of $5, $4, and $2, respectively. The president foresees sales of 231,000 units in the coming period,...
-
Figure shows a uniform beam subject to a linearly increasing distributed load. The equation for the resulting elastic curve is w. (-X* + 21X - L*X) 120 EIL Based on the above equation determine the...
-
An ion's position vector is initially r = 5.0i 6.0j + 2.0k, and 10 s later it is r = 2.0i + 8.0j 2.0k, all in meters. In unit-vector notation, what is its v avg during the 10s?
-
A train at a constant 60.0 km/h moves east for 40.0 min, then in a direction 50.0 o east of due north for 20.0 min, and then west for 50.0 min. What are the (a) Magnitude and (b) Angle of its average...
-
During the confirmation of accounts receivable, an auditor receives a confirmation via the clients fax machine. Which of the following actions should the auditor take? a. Not accept the confirmation...
-
A water tank is filled to its \(10 \times 10^{4}\)-L capacity. (a) What is the tank's volume in cubic meters? (b) What is the mass of the water in micrograms? (c) If your household consumed ten...
-
You are recording your car's petrol consumption. Your odometer measures to the tenth of a kilometer. The gas-station pump displays liters of gasoline dispensed to the thousandth of a liter. Given...
-
Express the distance of the Dubai World Cup horserace in kilometers to the same number of significant digits needed to answer problem 42. Data from Problem 42 The Dubai World Cup horserace is 2000...
-
You measure a quantity \(T\) that can be represented as \(=2 \pi \sqrt{\frac{l}{g}}\). If \(T\) and \(l\) have the units of seconds and meters, respectively, then what should the units of \(g\) be...
-
The Dubai World Cup horserace is 2000 meters long. Express this distance in miles.
-
A portable concrete test instrument used in construction for evaluating and profiling concrete surfaces (MACRSGDS 5-year property class) is under consideration by a construction firm for \($22,000.\)...
-
Let (x) = x 2 - 9, g(x) = 2x, and h(x) = x - 3. Find each of the following. (((--) 2
-
A silicon solar cell looks like a battery with a 0.50 V terminal voltage. Suppose that 1.0 W of light of wavelength 600 nm falls on a solar cell and that 50% of the photons give their energy to...
-
For the thermal radiation from an ideal blackbody radiator with a surface temperature of 2000 K, let Ic represent the intensity per unit wavelength according to the classical expression for the...
-
Assuming that your surface temperature is 98.6F and that you are an ideal blackbody radiator (you are close), find (a) The wavelength at which your spectral radiancy is maximum, (b) The power at...
-
The smallest dimension (resolving power) that can be resolved by an electron microscope is equal to the de Broglie wavelength of its electrons. What accelerating voltage would be required for the...
-
A 1-kg ball moving with a velocity of 2 m/s to the right collides with a 2-kg ball moving with a velocity of 4 m/s to the left. The balls collide elastically and scatter at a 45-degree angle to their...
-
Two balls, one with a mass of 2 kg and the other with a mass of 3 kg, collide elastically. After the collision, the 2-kg ball moves to the left with a velocity of 4 m/s and the 3-kg ball moves to the...
-
A 1-kg ball is moving to the right with a velocity of 2 m/s when it collides with a stationary 2-kg ball. After the collision, the 1-kg ball moves to the left with a velocity of 1 m/s. What is the...
Study smarter with the SolutionInn App