You are arguing over a cell phone while trailing an unmarked police car by 26.0 m. Both your car and the police car are traveling at 102 km/h. Your argument diverts your attention from the police car for 2.50 s (long enough for you to look at the phone and yell, "I won't do that!"). At the beginning of that 2.50 s, the police officer begins emergency braking at 5.00 m/s².

(a) What is the separation between the two cars when your attention finally returns?
m

(b) Suppose that you take another 0.400 s to realize your danger and begin braking. If you too brake at 5.00 m/s², what is your speed when you hit the police car?
  km/h

A hydraulic lift in a garage has two pistons: a small one of cross-sectional area 4.50cm2 and a large one of cross-sectional area 220cm2 .

There are two parts to this question please give CORRECT answer.

Part A If this lift is designed to raise a 3400-kg car, what minimum force must be applied to the small piston?

Part B If the force is applied through compressed air, what must be the minimum air pressure applied to the small piston?

An empty tin can with height of 30cm and a diameter of 15cm is open at one end and closed at the other end. If the vertical can, with open end down, be slowly immersed in water, how far the water will rise inside the can when the closed end is 10 cm below the water surface?

1)An object experiences a force in the direction opposite its motion. This means

the work vector points in the negative direction

the scalar value of work is negative

the scalar vector of work could be either positive or negative, depending on which direction is chosen to be positive.

the work vector could point in either the positive or negative direction, depending on which direction is chosen to be positive.

2: A hand lifts a block vertically upward at constant velocity. The work done by gravity on the block ____ if the system consists of the block only. The work done by gravity on the block ____ if the system consists of the block and the earth. AND WHY?

is zero, is zero/is zero, is negative/is zero, is positive/is negative, is negative/is positive, is positive

3: A block of mass M is moves down a frictionless ramp of angle θ and height H. The block is pushed at the top of the ramp so that its initial speed is 4 m/s.

Consider system A to be only the block and system B to be the block and the earth together. Is the speed of the block at the bottom of the ramp in system A ______to the speed of the block at the bottom of the ramp in system B?

greater than, less than, or equal

Ice to Steam via Water Due this Friday, Dec 4 at 11:59 pm (EST) How much heat is required to change a 49.4 g ice cube from ice at -13.7°C to water at 50°C? (if necessary, use cice=2090 J/kg°C and csteam= 2010 J/kg°C) 2.82×104 J You are correct. Your receipt no. is 150-2609 Help: Receipt Previous Tries How much heat is required to change a 49.4 g ice cube from ice at -13.7°C to steam at 120°C?

An electron follows a helical path in a uniform magnetic field of magnitude 0.447 T. The pitch of the path is 4.88 μm, and the magnitude of the magnetic force on the electron is 1.64 × 10-15N. What is the electron's speed?

ASAP

write a critical review on this paper "THE INFLUENCE OF ARCHITECTURE IN ENGINEERING SYSTEMS" Engineering System Monograph

ENGINEERING SYSTEMS MONOGRAPH

The ESD Architecture Committee Edward Crawley, Olivier de Weck, Steven Eppinger, Christopher Magee, Joel Moses, Warren Seering, Joel Schindall, David Wallace, Daniel Whitney (Chair)

THE INFLUENCE OF ARCHITECTURE IN ENGINEERING SYSTEMS

The ESD Architecture Committee Edward Crawley, Olivier de Weck, Steven Eppinger, Christopher Magee, Joel Moses, Warren Seering, Joel Schindall, David Wallace, Daniel Whitney (Chair)

ABSTRACT

The field of Engineering Systems is distinguished from traditional engineering design in part by the issues it brings to the top. Engineering Systems focuses on abstractions like architecture and complexity, and defines system boundaries very broadly. It also seeks to apply these concepts to the process of creating systems. This paper summarizes the role and influence of architecture in complex engineering systems. Using the research literature and examples, this paper defines architecture, argues for its importance as a determinant of system behavior, and reviews its ability to help us understand and manage the design, operation, and behaviors of complex engineering systems.

A. INTRODUCTION

Typical engineering design education focuses on specific aspects of design, such as the technical behavior of a set of elements interconnected in a certain way. By contrast, Engineering Systems focuses on a number of abstract concepts first because they provide a general framework for guiding the development of many diverse kinds of systems, so that these systems will provide the desired functions in the desired ways. Among these abstract concepts is that of system architecture. In this paper, we explore this concept and provide a number of ways of appreciating system architecture

A positron with kinetic energy 3.00 keV is projected into a uniform magnetic field of magnitude 0.140 T, with its velocity vector making an angle of 88.0° with the field. Find (a) the period, (b) the pitch p, and (c) the radius r of its helical path.

ASAP

A pair of bumper cars in an amusement park ride collide elastically as one approaches the other directly from the rear, as seen in part (a) of the figure below. ((a) before collision, (b) after collision) One has a mass of m1 = 462 kg and the other m2 = 546 kg, owing to differences in passenger mass. If the lighter one approaches at v1 = 4.48 m/s and the other is moving at v2 = 3.63 m/s, calculate the velocity of the lighter car after the collision.

Calculate the velocity of the heavier car after the collision.

Calculate the change in momentum of the lighter car.

Calculate the change in momentum of the heavier car.

A major league pitcher stands on the pitching mound 60ft 6in from home plate throws a fastball at 105 mph. Assume both the batter and pitcher are the same height (6ft 6in) and the ball is released 55 inches above the ground when thrown horizontal.

a. How far will a 340 gram baseball travel before hitting the ground?

b. How high is the ball above the ground when it passes over home plate?

c. How long does it take to reach home plate?

Now let’s look at what happens when the ball is hit, using the setup from the last problem. When hit the ball’s speed is an average of 30% faster and leaves the bat at a 5 degree angle.

(a) How high is the ball when it passes the pitching mound?

(b) How far will the ball travel?

A diverging mirror has a focal length of f = 300 mm .

A) Calculate the image distance for an object located halfway between the focal point and the mirror. Express your answer with the appropriate units. Follow the sign convention.

B) Calculate the magnification for an object located halfway between the focal point and the mirror. Express your answer using three significant digits. Follow the sign convention.

C) Calculate the image distance for an object located at the focal point. Express your answer with the appropriate units. Follow the sign convention.

D) Calculate the magnification for an object located at the focal point.

E) Calculate the image distance for an object located halfway between the focal point and the center of curvature. Express your answer with the appropriate units. Follow the sign convention.

F) Calculate the magnification for an object located halfway between the focal point and the center of curvature.

G) Calculate the image distance for an object located at the center of curvature. Express your answer with the appropriate units. Follow the sign convention.

H) Calculate the magnification for an object located at the center of curvature. Express your answer using three significant digits. Follow the sign convention.

I) Calculate the image distance for an object located a distance f beyond the center of curvature. Express your answer with the appropriate units. Follow the sign convention.

J)  Calculate the magnification for an object located a distance f beyond the center of curvature.

K) Calculate the image distance for an object located at infinity. Express your answer with the appropriate units. Follow the sign convention.

L) Calculate the magnification for an object located at infinity.

Over the course of a multi-stage 4120-km bicycle race, the front wheel of an athlete's bicycle makes 1.69x10⁶ revolutions. How many revolutions would the wheel have made during the race if its radius had been 1.2 cm larger?

At a certain location, electromagnetic wave 1 is measured to have an average electric field of Eav = 152 N/C, and electromagnetic wave 2 is measured to have an average magnetic field of Bav = 0.87 µT.

a. (5 points) Calculate the average intensity of each wave.

b. (5 points) If the electromagnetic waves are being measured 0.54 m from their light sources (assume that they are emitting light uniformly in all directions), what average power is each source emitting? By how many 60 W incandescent light bulbs would each light source need to be replaced to emit the same average power?

c. (5 points) Suppose an average human sun bathes in the light from wave 2 for 45 minutes. If we assume that this person exposes 0.45 m 2 of their skin to this light and that none of the light is reflected by the skin, how much energy is absorbed into their skin? If you could somehow utilize this energy to lift a 70. kg person on the surface of the Earth, how high could the person be lifted?

d. (5 points) Assume that both light waves are initially unpolarized. We decide to send the higher intensity light wave through a polarizer-analyzer combination so that its final intensity matches that of the lower (unpolarized) intensity light wave. If the transmission axis of the first polarizer is horizontal, how must the transmission axis of the analyzer be oriented so that the light intensities match? Express your angle as measured from the vertical axis

A 215 g object is attached to a spring that has a force constant of 72.5 N/m. The object is pulled 7.75

cm to the right of equilibrium and released from rest to slide on a horizontal, frictionless table.

Calculate the maximum speed of the object.

maximum speed:

m/s

Find the locations of the object when its velocity is one-third of the maximum speed. Treat the equilibrium position as zero, positions to the right as positive, and positions to the left as negative.

position:

cm

position:

cm

Jae throws an object with a certain velocity and a certain angle with respect to the horizontal direction. Calculate the angle at which the horizontal displacement of the object is going to be maximum, ignoring air resistance. Calculate the angle at which the horizontal displacement of the object is going to be half of the maximum. You may need to think about using the velocity equation first, estimate the time it takes to get to the highest position in terms of variables, write the position equations in terms of what you got from the velocity equation.