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Find the moment of inertia of this rod. About an axis perpendicular to the rod through A.
Amateur radio operators often refer to their radio waves by wavelength. What are the approximate frequencies of the 160-m, 15-m, and 2-m wavelength amateur radio bands?
Two stars, with masses m1 and m2 that are initially very far apart and at rest (and even farther from any other stars) are pulled together by their gravitational attraction.
A (1, 5) and B (4, 9) are two adjacent vertices of a square. find the equation of the line on which the side BC of the square lies. How long are the sides of this square?
Assume that ABCD is a convex quadrilateral. Show that in absolute geometry, the sum of the measure of angles in any quadrilateral cannot exceed 360 degrees.
If a person standing on the side of the road hears the horn at a frequency of 270 Hz, then what is the speed of the truck? Use 340 m/s for the speed of the sound.
A wire has a current density of 18 A/mm2. If the drift velocity is 5.0×10-8 m/s, how many free electrons does the wire have in a 1.0 m length?
A park in a subdivision is triangular-shaped. Two adjacent sides of the park are 533 feet and 525 feet. The angle between the sides is 53°. Find the area of the park to the nearest square foot.
A piece of paper 24 in long by 18 in wide, is folded once in such a way that two diagonally opposite corners are made to coincide. What is the length of the crease?
Given triangle ABC. If triangle ABC is congruent to triangle BAC and triangle ABC is congruent to triangle ACB. What conclusions can be drawn about triangle ABC? Explain your reasoning?
What is the number of sides in a regular polygon in which the measure of an interior angle is twelve more than six times the measure of an exterior angle?
A tower casts a shadow 100 feet long. A 9 foot pole is placed upright at the point P so that the tip of its shadow coincides with the tip of the shadow of the tower at point O. Distance OP is measur
Given that Triangle ABC = Triangle DEF, measure of angle A = 70 degrees, measure of angle B = 60 degrees, measure of angle C = 50 degrees, measure of angle D = (3x + 10) degrees, measure of angle E
If you place 35 points on a piece of paper so that no three points are in a line, how many line segments are necessary to connect each point to all the others?
By how much will the volume of coolant in an automobile radiator increase when its temperature increases by 130 C° if the initial volume of coolant is 19 liters and its thermal coefficient of
If Δ ABC is a right triangle with legs of length a and b and with hypotenuse of length c, show that Heron's formula gives the same area as which states that the area of a triangle is equ
Where is the image formed. Take a positive answer to be in front of the mirror, and a negative answer to be behind the mirror.
Soddy's hexlet is a chain of six spheres, each of which is tangent to both of its neighbors and also to three mutually tangent given spheres.
What is the position of the image? Take a positive answer to be in front of the mirror, and a negative answer to be behind the mirror.
A solenoid of radius 3.0 cm has 350 turns and a length of 21 cm. Find the rate at which current must change through it to produce an emf of 76 mV.
If two lines have a transversal which forms corresponding angles that are congruent, then the two lines are parallel.
Write an equation in slope-intercept form for the line that satisfies the given conditions. x-intercept is -6, y-intercept is 2. What is the x-intercept and how would I put this into slope-intercept
A Young's double-slit interference experiment gives bright fringes separated by 30.5 cm on a screen when the experiment is performed in air.
A converging lens with a focal length of 15 cm is used to form an image on a screen that is 1.8 m behind the lens. At what distance in front of the lens must the object be placed?
Show two triangles are conguent using SAS. Then you can conclude any corresponding angles are congruent or any corresponding sides are congruent.