A large, concave mirror has a radius of 50 cm. If a 3 cm tall object is placed 20 cm from the mirror
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a. What is the position of the image?
b. Is the image upright or inverted?
c. is the image real or virtual?
d. Calculate the magnification
e. What is the height of the image?

Aregular polygon has angkes of size 150° each.how many side has the polygon

Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.