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Explain why such data may be misleading if the number of people exposed to the risks is increased by, for example, the expansion of the housing estate.
A cannon located 42 m from the base of a vertical 30 m high cliff has its muzzle pointing towards the cliff at an angle 48° above the horizontal. determine how far the shell lands past the edge
one 73" c8x11.5 steel beem is connected to a 22" c8x11.5 fish plate made up of 6x15x1/4 steel plate on each side bolted togething using 3/4" structural bolts, What is the Max capacity of this beam
The limiting reactant in the salt mixture was later determined to be CaCl2x2H2O a) How many moles and grams of the excess reactant, K2C2O4xH2O, reacted in the mixture? b) How many grams of the K2C2O
A 3000-kg Ferris wheel accelerates from rest to an angular speed of 0.17rad/s in 11s, calculate the net torque on the wheel
Calculate the length of the transmitter antennain order for it to be exactly one half the wavelength of this transmission frequency
iodination is electrophilc aromatic substion reaction in which electrophile is Iodonium (I^+) , it will updatined by the reaction of sodium hypochlorite (NaOCl) with iodide ion (NaI), which is stron
A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 192 N and is 3.1 m long. What is the tension in each rope
Find explicitly f(x) = H(x) / g(x), as it would be a quadratic equation and then solve for the roots of f(x) for in terms of for which it would have real roots
An ice skater has a moment of inertia of 2.3kg*m^2 , when his arms are tucked in close to his chest
A 16-kg rotating disk of radius 0.26m has an angular momentum of 0.30KGg * m^2/s, What is the angular speed of the disk
Given a column of air with a pressure of 1.57 x 10^5 Pa and an area of 1.04 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column
A 37-kg block of ice at 0° C is sliding on a horizontal surface. The initial speed of the ice is 6.2 m/s, Determine the mass of ice that melts into wate
Write down a **recurrence relation** and the **closed form** for each of the sequences described below. In each case the indices n are natural numbers
A 0.22-kg coffee mug is made from a material that has a specific heat capacity of 900 J/(kg · C°) and contains 0.23 kg of water. determine the minimum power rating of this he
Water flows trough a normal garden hose at 2 m/s. how fast does the water emerge from the hose nozzle
Compare the distance he wanted to cover in the real world with the "theoretical" distance that could be covered if there was no air resistance - If the engine was close to 100% efficient how much pe
What is the linear speed of the hoop's center of mass just as the hoop leaves the incline and rolls onto a horizontal surface
We will use solar heater as input in steam power cycle for plant. Water initially has temperature of 40 degree, find the Isentropic efficiency of turbine
A typical ten-pound car wheel has a moment of inertia of about 0.35 kg*M^2. find the rotational kinetic energy K of the rotating wheel
Analysis of an unknown substance showed that it has a moderate melting point and is a good conductor of heat and electricity in the solid phase. Which of the following substance would have those cha
A 3000-kg Ferris wheel accelerates from rest to an angular speed of 0.17rad/s in 11s, What is the net torque on the wheel
A Carnot engine is operated between a hot and a cold reservoir. find the temperature of the cold reservoir
Calculate how many mL of 0.100 M NaOH are needed to neutralize completely 49.0 mL of 0.0800 M H2SO4 (forming Na2SO4 and water).
A ball rolls horizontally with a speed of 9.0m/s off the edge of a tall platform. what is the height of the platform