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Home >All Categories > Science & Mathematics >Geography >Open QuestionOKAY so i have this huge geography test next week and i have to know the exact location of every capital in the world. Are there any games online that can help me learn where each capital is??? HELLPPPPPAnswer Question

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Let z = the number of zebras and n = number of neons

then, for 9, z + n = 13 ==> n = 13 - z
also, 2.1z + 1.85n = 25.8 ==> 2.1z +1.85(13 - z) = 25.8
==> z(2.1 - 1.85) = 25.8 - 24.05 ==> 0.25z = 1.75 ==> z/4 = 7/4
==> z = 7 and n = 6

Similarly for the other

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a^-2 = 1/a^2

=> 1/a^-2 = a^2

i.e. 3b x a^2 = 3(a^2)b

:)>

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A. Embryo secrets HCG -> Implantation of embryo in uterine wall -> Stimulates corpus luteum to grow

B. Implantation of embryo in uterine wall -> Stimulates corpus luteum to grow -> Embryo secrets HCG

C. Implantation of embryo in uterine wall -> Embryo secrets HCG ->Stimulates corpus luteum to grow

D. Continued secretion of progesterone and estrogen -> Embryo secrets HCG -> Stimulates corpus luteum to grow -> Implantation of embryo in uterine wall

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(a) First, you need to find the velocity of the pole vaulter after they've fallen from a stop at 7 m down to 1m, where they hit the bag. Then assume a constant deceleration over the 0.7 m distance that brings him to a stop, and solve for the time. For each part, find the right equations from the basic equations of motion, and solve them.

(b) Same deal, but he falls from 7 m to 0.218 m, and then undergoes constant acceleration that brings him to a stop in (0.218-0.054 = 0.164) m.

Good luck!

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Home >All Categories > Science & Mathematics >Mathematics >Open Question A A Member since:February 27, 2011Total points:50 (Level 1)A bowl contains 50 raffle balls of the numbers 1-50.
Three balls will be drawn from the bowl.
You know the balls are labelled with the numbers 1-50 and are allowed three guesses.
What are the odds of your three guesses being correct?Answer Question

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Home >All Categories > Science & Mathematics >Mathematics >Open Question A A Member since:February 27, 2011Total points:50 (Level 1)A bowl contains 50 raffle balls of the numbers 1-50.
Two balls will be drawn from the bowl.
You know the balls are labelled with the numbers 1-50 and are allowed two guesses.
What are the odds of your two guesses being correct?Answer Question

by Anna Member since:February 28, 2011Total points:94 (Level 1)

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Its a deflection, its an effect because of the way we see it.The Coriolis effect is most apparent in the path of an object moving longitudinally. On the Earth an object that moves along a north-south path, or longitudinal line, will undergo apparent deflection to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. There are two reasons for this phenomenon: first, the Earth rotates eastward; and second, the tangential velocity of a point on the Earth is a function of latitude (the velocity is essentially zero at the poles and it attains a maximum value at the Equator). Thus, if a cannon were fired northward from a point on the Equator, the projectile would land to the east of its due north path. This variation would occur because the projectile was moving eastward faster at the Equator than was its target farther north. Similarly, if the weapon were fired toward the Equator from the North Pole, the projectile would again land to the right of its true path. In this case, the target area would have moved eastward before the shell reached it because of its greater eastward velocity. An exactly similar displacement occurs if the projectile is fired in any direction.

The Coriolis deflection is therefore related to the motion of the object, the motion of the Earth, and the latitude. For this reason, the magnitude of the effect is given by 2 sin , in which is the velocity of the object, is the angular velocity of the Earth, and is the latitude.

The Coriolis effect has great significance in astrophysics and stellar dynamics, in which it is a controlling factor in the directions of rotation of sunspots. It is also significant in the earth sciences, especially meteorology, physical geology, and oceanography, in that the Earth is a rotating frame of reference, and motions over the surface of the Earth are subject to acceleration from the force indicated. Thus, the Coriolis force figures prominently in studies of the dynamics of the atmosphere, in which it affects prevailing winds and the rotation of storms, and in the hydrosphere, in which it affects the rotation of the oceanic currents.

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