The left end of a long glass rod 8.00 cm in diameter, with an index of refraction 1.60, is ground to a concave hemispherical surface with radius 4.00 cm. an object in the form of an arrow 1.40 mm tall, at right angles to the axis of the rod, is located on the axis 26.0 cm to the left of the vertex of the concave surface.

a) find the position of the image of the arrow formed by paraxial rays incident on the convex surface. (answer is s1 in units cm)
b) find the height of the image formed by paraxial rays incident on the convex surface. (answer is y1 in units mm)
c) is the image erect or inverted?
i have tried solving this problem multiple ways and even referred to previous answers, but nothing seems to work. i will rate lifesaver for anyone who shows a correct explanation of how to solve and approach this problem. i greatly appreciate any you can provide!

an electric circuit

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.