A5·cm tall candle is placed 90·cm from a lens with a focal length of +30·cm. note: enter the absolute value of your answers for all distances and heights use the signs to determine the type and orientation of the images.
(a) how far from the lens will the image be? cm.
(b) how tall will the image be? cm
(c) which of the following describes the image? choose all that apply.
real
virtual
upright
inverted
now, imagine that the candle is moved closer, so that it is only 24·cm from the lens.
(d) how far from the lens will the image be? cm.
(e) how tall will the image be? cm
(f) which of the following describes the image? choose all that apply.
real
virtual
upright inverted

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy

To understand the electric potential and electric field of a point charge in three dimensions consider a positive point charge q, located at the origin of three-dimensional space. throughout this problem, use k in place of 14? ? 0. part adue to symmetry, the electric field of a point charge at the origin must point from the origin.answer in one word.part bfind e(r), the magnitude of the electric field at distance r from the point charge q.express your answer in terms of r, k, and q. part cfind v(r), the electric potential at distance rfrom the point charge q.express your answer in terms of r, k, and q part dwhich of the following is the correct relationship between the magnitude of a radial electric field and its associated electric potential ? more than one answer may be correct for the particular case of a point charge at the origin, but you should choose the correct general relationship. a)e(r)=dv(r)drb)e(r)=v(r)rc)e(r)=? dv(r)drd)e(r)=? v(r)r

What is a view of science and psychology that says the value of knowledge depends on its usefulness? a. pragmatism b. psychotherapy c. physiology