Answer:
One difference between a real and a roller coaster is that a roller coaster has no engine and a train does.
Explanation:
Answer:
vertical load = 10 kN
Modulus of elasticity = 200GPa
Yield stress on the cable = 400 MPa
Safety factor = 2.0
Explanation:
Data
let L =
= 3.35 m
substituting 1.5 m for h and 3 m for the tern (a + b)
= tan⁻¹()
= 45⁰
substituting 1.5 for h and 3 m for (a+ b) yields:
₂ = tan⁻¹ ()
=25.56⁰
checking all the forces, they add up to zero. This means that the system is balanced and there is no resultant force.
Answer:
Income and appreciation
Explanation:
The internal rate of return, also known by other names such as The rate of return (TR), Internal rate of return (IRR), return on investment (RSI) and rate of return (IR), just to name a few, is the rate to be paid on the unpaid balance of the money obtained on loan or the rate earned on the balance not recovered from an investment, so that the final payment equals the balance exactly to zero with the interest considered. The interest rate of return is calculated by means of an equation based on the present value and / or annual value, which some precautions must be taken to avoid making mistakes in the calculation. There is also a maximum number of possible interest rates for a series of specific cash flows. A compound rate of return is also calculated using a given investment rate. As well as a nominal and effective interest rate for a bond investment.
So it could be said that to determine the return on investment, several factors are taken into account, but mainly income and appreciation.
Answer:
Diameter will be 27394.76 m
Explanation:
Power P = 0.5 kW = 500 W
Time t required for grinding = 1 hr = 3600 sec
Energy required E = P x t
E = 500 x 3600 = 1800000 J
Flow rate of water Q = 400 ltr/min
We convert to m3/sec
400 ltr/min = 400/(1000 x 60) m3/ses
Q = 0.0067 m3/sec
Energy provided by flow will be
E = pgQd
Where p = density of water = 1000 kg/m3
g = acceleration due to gravity 9.81 m/s2
d = diameter of wheel.
Equating both energy, we have,
1800000 = 1000 x 9.81 x 0.0067 x d
1800000 = 65.73d
d = 1800000/65.73
d = 27394.76 m
Answer: LED have the lowest cost of operation.
Explanation:
If we ignore the initial procurement cost of the items the operational cost of any device consuming electricity is given by
Among the three item's LED consumes the lowest power to give the same level of brightness as compared to the other 2 item's thus LED's shall have the lowest operational cost.