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The near point of the eye is 151 cm. A corrective lens is to be employed to allow this eye to evidently focus on objects 25 cm in front of it. Part A) What must be the focal length of the lens?
The Yerkes refracting telescope consists of a 1 m diameter objective lens of focal length 20 m. suppose it is employed with an eyepiece of focal length 4.31 cm. Determine the angular magnification o
A person sees evidently wearing eyeglasses that encompass a power of -2.93 diopters and sit 1.66 cm in front of the eyes. When the person wants to switch to contact lenses, which are located directly
Determine the y-component of the magnetic force on the initial particle due to the second?
In the geometric series, sum of first three terms is 304, and sum of first six terms is 1330. Determine sum of the first seven terms. Illustrate the detailed step by step?
The two parallel sheets of aluminum foil separated by 0.1 mm are joined to a 9-V battery. The area of each and every sheet is 0.5 sq. m. (i) Determine the electric field among the aluminum sheets.
At the top of hill, passengers "feel light", with the noticeable weight of only 40% of their true weight. How fast is coaster moving?
Write down the Lagrangian in terms of Center of Mass and relative position vectors R and r, and determine the equations of motion for the coordinates X, Y and x, y. Explain the motion and find out t
(i) At what times t > 0 will plate A again encompass maximum positive charge? (ii) At what times will the other plate of capacitor encompass maximum positive charge?
A bullet of 7.80-g moving at 480 m/s penetrates a tree trunk to the depth of 6.5 cm. (i) Utilize work and energy considerations to determine the average frictional force which stops the bullet.
Determine the total work done on the particle through external forces as it moves from (A) to (B)?
Then the force (in Newton) applied by the expanding gas on the bullet is 15900 + 9000x - 23750, where x is in meters. (i) Find out the work done by the gas on the bullet as the bullet moves the length
If characters are represented by using the code which uses the byte for every character, how many different characters can be symbolized?
The raindrop of mass 3.06*10e5 kg drops vertically at constant speed beneath the influence of gravity and air resistance. Model the drop as the particle. (i) As it drops 105 m, find out the work do
The heart human has to pump the average adult's 5.8 of blood through the body each and every minute. The heart should do work to overcome the frictional forces which oppose the blood flow. The avera
A skydiver having mass of 83.0 kg jumps from a slow-moving aircraft and arrives at a terminal speed of 54.9 m/s. (i) Determine her acceleration if her speed is 30.0 m/s? (ii) Determine the drag force
Let the function f(x) = 3cos (3x) - 1 Detemine vertical shift. Use this information to graph function for at least one period.
find out (i) the translational kinetic energy of the center of gravity, (ii) the rotational kinetic energy regarding its center of gravity, and (iii) its net kinetic energy.
A wire is bent to a rectangular loop of width 2L and height L. When L = 20 cm and the wire carries a current I = 15 A, then determine the value of the magnetic field at the center of the rectangle.
Use the suitable double angle formula to rewrite given expression as sine, cosine or tangent of corresponding double angle. 2 cos^2 (-9pi/8)-1=? Wrtite answer in radians.
A cardinal (Richmondena cardinalis) having mass 4.00×10-2 kg and a baseball of mass 0.140 kg encompass the similar kinetic energy. Determine the ratio of the cardinal's magnitude of momentum t
A 1500 wrecking ball suspends from an 18 -long cable. The ball is pulled back till the cable makes an angle of 29.0 with the vertical. Determine by how much has the gravitational potential energy of
Calculate the work done moving the 5.8 of blood completely through the body, supposing the blood pressure always takes its average value.
Assume sina=4/5 for the quadrant II angle a and sinB=1/2 for the quadrant I angle B. Find exact value of following.
Explain the greater in magnitude the lattice energy for kI or the hydration energy of the ions K+ and I- the solution process for KI in water.