Answered step by step

Verified Expert Solution

Link Copied!

Question

1 Approved Answer

Posted on Nov 16, 2021

When a student steps on a bathroom scale inside an elevator that is at rest, the scale reads 490 N. When the elevator starts

When a student steps on a bathroom scale inside an elevator that is at rest, the scale reads 490 N. When the elevator starts to move, the scale reads 425 N. Is the elevator moving up up or down? What is its acceleration?

Step by Step Solution

★★★★★

3.44 Rating (160 Votes )

There are 3 Steps involved in it

Step: 1

Siletion Apparent Case I When elevator is at rest then scale re... blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

Step: 3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Fundamentals of Physics

Authors: Jearl Walker, Halliday Resnick

8th Extended edition

471758019, 978-0471758013

More Books

Students also viewed these Physics questions

Question

★★★★★

A student stands in an elevator that is continuously accelerating upward with acceleration a. Her backpack is sitting on the floor next to the wall. The width of the elevator car is L. The student...

Answered: 1 week ago

Question

★★★★★

You are standing on a bathroom scale inside an elevator. Your weight is 140 lb, but the reading of the scale is 120 lb. (a) What is the magnitude and direction of the acceleration of the elevator?...

Answered: 1 week ago

Question

★★★★★

A bolt comes loose from underneath an elevator that is moving upward at a speed of 6 m/s. The bolt reaches the bottom of the elevator shaft in 3 s. (a) How high up was the elevator when the bolt came...

Answered: 1 week ago

Question

★★★★★

Consider the following graph. 2 7 6 C 10 10 H 11 E 12 15 14 (a). Find a minimum spanning tree of the graph using Kruskal's algorithm. List the edges in the order they are put into the tree. (b)....

Answered: 1 week ago

Question

★★★★★

Let X1, . . . ,Xn be independent and identically distributed random variables. Find E[X1|X1 + + Xn = x]

Answered: 1 week ago

Question

★★★★★

Write the sum in summation notation. sin(7) + sin (7) + sin (3) + ... + sin( n ( n+ 1

Answered: 1 week ago

Question

★★★★★

Why is standard deviation so important? Give two examples of how it might be used in an applied setting.

Answered: 1 week ago

Question

★★★★★

On January 1, 2021, Acme Co. is considering purchasing a 40 percent ownership interest in PHC Co., a privately held enterprise, for $700,000. PHC predicts its profit will be $185,000 in 2021,...

Answered: 1 week ago

Question

★★★★★

1 . 6 ( Data redundancy ) Looking at the Emp _ Name and Emp _ Phone contents in the following figure, what change ( s ) would you recommend? The File Structure \ table [ [ \ table [ [ Proj _ ] , [...

Answered: 1 week ago

Question

★★★★★

A compound was obtained from a natural product and had the molecular formula C14H20O3. It contained three methoxy (OCH3) groups and a CH2CHoeC (CH3)2 substituent. Oxidation with either chromic acid...

Answered: 1 week ago

Question

★★★★★

Calculate the inventory turnover, days in inventory, and gross profit rate for 2017 and 2016. ( Round inventory turnover to 1 decimal place, e.g. 5.2, days in inventory to 0 decimal places, e.g. 125...

Answered: 1 week ago

Question

★★★★★

The length of the winning word in the National Spelling Bee is approximately normally distributed with a mean of 9 and standard deviation of 2. (a) Where on the standard normal curve would a word...

Answered: 1 week ago

Question

★★★★★

Which musical has a participatory Be - In as its finale? Select one: Spring Awakening American Idiot Hair Hedwig and the Angry Inch

Answered: 1 week ago

Question

★★★★★

employees at the plants are also shown. These data are as follows: MEdiCEll $7,400 $14,400 $12,300 $6,200 $3,100 Employees 123 402 256 109 67 a. Compute the weighted mean medical payments for these...

Answered: 1 week ago

Question

★★★★★

The bar shown in Fig. 11.12(a) is attached at its ends to unyielding supports. There is no initial stress in the bar. A force P is then applied as shown. (a) What are the forces in the steel and...

Answered: 1 week ago

Question

★★★★★

A supplier to an OEM company is going to use Scrum to develop a system. The Manufacturing company has laid out 245 functional requirements and 19 external interface requirements. The supplier has...

Answered: 1 week ago

Question

★★★★★

(Language: C++) P14.5 Write a class Polynomial that stores a polynomial such as P(X) = 5x10 + 9x?-X-10 as a linked list of terms. A term contains the coefficient and the power of x. For example, you...

Answered: 1 week ago

Question

★★★★★

Evaluate the line integral, where C is the given curve. C x 2 dx + y 2 dy, C consists of the arc of the circle x 2 + y 2 = 4 from (2, 0) to (0, 2) followed by the line segment from (0, 2) to (4, 3)

Answered: 1 week ago

Question

★★★★★

A loudspeaker diaphragm is oscillating in simple harmonic motion with a frequency of 440 Hz and a maximum displacement of 0.75 mm. What are the (a) Angular frequency, (b) Maximum speed, and (c)...

Answered: 1 week ago

Question

★★★★★

A box of canned goods slides down a ramp from street level into the basement of a grocery store with acceleration 0.15 m/s 2 directed down the ramp. The ramp makes an angle of 40 with the horizontal....

Answered: 1 week ago

Question

★★★★★

In Figure, a force F of magnitude 12 N is applied to a FedEx box of mass m2 = 1.0 kg. The force is directed up a plane tilted by = 37o. The box is connected by a cord to a UPS box of mass m1 = 3.0...

Answered: 1 week ago

Question

★★★★★

Given the following null and alternative hypotheses H0: p1 p2 0.0 HA: p1 p2 0.0 and the following sample information Sample 1 Sample 2 n1 60 n2 80 x1 30 x2 24 a. Based on a 0.02 and the...

Answered: 1 week ago

Question

★★★★★

The following dependent samples were randomly selected. Use the sample data to construct a 95% confidence interval estimate for the population mean paired difference. Sample 1 Sample 2 Sample 1...

Answered: 1 week ago

Question

★★★★★

The following samples are observations taken from the same elements at two different times: Unit Sample 1 Sample 2 1 15.1 4.8 2 12.3 5.7 3 14.9 6.2 4 17.5 9.4 5 18.1 2.3 6 18.4 4.7 a. Assume that the...

Answered: 1 week ago

Previous Question Next Question