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Q. A steel safe with mass 2200 kg falls onto concrete. Just before hitting the concrete its speed is 40 m/s, and it smashes without rebounding and ends up being 0.06 m shorter than before. What is the approximate magnitude of the force exerted on the safe by the concrete?
Q. A 78-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.2 m/s in 0.74 s. The elevator travels with this constant speed for 5.0 s, undergoes a uniform negative acceleration for 1.8 s, and then comes to rest. What does the spring scale register in each of the following time intervals?
(a) before the elevator starts to move
(b) during the first 0.74 s of the elevator's ascent
(c) while the elevator is traveling at constant speed
(d) during the elevator's negative acceleration
Explain and Compose an interesting question related to any of the topics covered in this week's readings regarding the well known (arguably the most famous Italian Mafia group) Cosa Nostra or the newer Italian Mafia organization known as Calabrian..
Illustrate what problems would occur if the managers of each division were given incentives to maximize each division's profit separately.
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What is the length of the shadow cast on the vertical screen by your 9 cm hand if it is held at an angle of 20 above horizontal.
Explain five descriptive statistics used to explain the basic properties of variables. Which ones are used in a corporate office setting?
illustrate what dollar amount will the profit margin.
Need assistance in selecting one, describe it, and apply it to a corporation (ex. find a company that has effectively used it) in 200-300 words.
A map of a burned area obtined from remote sensing contains 120 pixels. The remote sensing image shows that the fire is isolated to 73 of 120 pixels.
Illustrate what are the arguments for using real per capita GNI to compare living standards between countries.
Service processes in multiple departments - If a process under analysis is extensive and cuts across several departmental lines
To fill a child's inflatable wading pool, you use a garden hose with a diameter of 2.90 cm. Water flows from this hose with a speed of 1.50 m/s. How long will it take to fill the pool to a depth of 25.0 cm if the pool is circular and has the diame..
What is magnitude of the greatest force
A coffee filter of mass 1.5 grams dropped from a height of 2 m reaches the ground with a speed of 0.7 m/s. How much kinetic energy Kair did the air molecules gain from the falling coffee filter? begin from the Energy Principle, and choose as the s..
Two ants race across a table 62 cm long. One travels at 4.77 cm/s and the other at 2 cm/s. When the first one crosses the finish line, how far behind is second one. What am I trying to solve for distance, speed, or time.
How rapidly atom are assembled in this protein synthesis
Calculate the radius of the path, direction of the force experienced by the electron and the path of the electron through the magnetic field.
Gillian buys a pendulum clock at a discount store and discovers when she gets it home that it loses minutes each day.
An LR circuit is hooked up to a battery as shown in the figure, with the switch initially open. The resistance in the circuit is R=120Ω, the inductance is L=4.10H, and the battery maintains a voltage of E=49V. At time t=0 the switch is closed.
What is an actual mechanical advantage of the system
Cheetahs, fastest of the great cats, can reach 45 in 2 starting from rest. Assume that they have constant acceleration throughout that time, find their acceleration (in (a) and (b) ) and the distance (in (c) and (d) ) Q2. They travel during that t..
Find time constant if the ball's amplitude has decreased to 2.20 cm after 51.0 oscillations? Explain your answer.
Two force vectors point in opposite directions and have the same magnitude. If their magnitudes are 36.5 Newton’s, then what is the magnitude of their sum?
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