PLEASE HELP 1. Find the distance to the image in the following curved mirror problems and state whether the image is virtual or real AND whether it is upright or inverted. (4 points each)
a. An object is placed 1.0 cm from a convex mirror with a focal length of 4.0 cm.
b. An object is placed 12 cm from a convex mirror with a focal length of 5.0 cm.
c. An object is placed 110 mm from a concave mirror with a focal length of 5.0 cm.
d. An object is placed 9.0 cm from a concave mirror with a focal length of 9.0 cm.
e. An object is placed 1.5 cm from a concave mirror with a focal length of 3.0 cm.

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

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