Question

Each student in a physics lab is assigned to find the location
where a bright object may be placed in order that a concave mirror
with radius of curvature r = 40.4 cm will produce an image 3.3
times the size of the object. Two students complete the assignment
at different times using identical equipment, but when they compare
notes later, they discover that their answers for the object
distance are not the same. Find the two correct answers for the
object distance d_{o}.

A. First (smaller) **d _{o}** =
?

B. Second (larger)
d = ?_{o} |

Answer #1

Two students in a physics laboratory each have a concave mirror
with the same radius of curvature, 50.0 cm. Each student places an
object in front of a mirror. The image in both mirrors is three
times the size of the object. However, when the students compare
notes, they find that the object distances are not the same. What
is the distance of the farther object?

Mirror lab
Object distance = measured distance from object/lighted object
to center of mirror = p or do
Image distance = measured distance from center of mirror to
image/screen = q or di
Focal length calculated using mirror equation:
(1/f) = (1/p) + (1/q) or (1/f) = (1/do) + (1/di)
Magnification: m = -(q/p) or m = -(di/do)
Procedure pp101-102
Part One: CONCAVE MIRROR
a.) p = q = 38 cm
b.) p > q: p = 50 cm, q...

Find the two locations where an object can be placed in front of
a concave mirror with a radius of curvature of 38.0 cm such that
its image is twice its size.
Express your answers using two significant figures. Enter your
answers numerically separated by a comma.
In the case when the object is placed closer to the mirror,
state whether the image is real or virtual, upright or
inverted.

Two identical objects of the same mass come into thermal contact
with each other. If object A is at 20o
C and the object B is at 90o C ,
then the equilibrium temperature will be
a.
20o C
b.
110o C
c.
90o C
d.
55o C
If a flat metal plate with a circular hole cut through it is
heated,
a.
the hole gets larger.
b.
the hole may get larger or smaller, depending on how much the
plate...

Problem As the resident physics expert, you’ve been called in to
take care of some hornets that have been terrorizing your dorm. You
find their nest is located high up in a tree. Your flamethrower is
on backorder, so you’ll have to find another way to burn them out.
In the deep recesses of the physics and astronomy basement, you
find a very large concave spherical mirror from an old telescope.
The mirror is 2 m across with an unknown...

just do questions 5 through 10
3.13.6
Question 110 pts
A 319 kg motorcycle is parked in a parking garage. If the car has
35,494 J of potential energy, how many meters above ground is the
car? Report your answer to 1 decimal place. Please do not include
units or the answer will be marked incorrect.
Flag this Question
Question 210 pts
A box sitting on the top of a hill has 252 J of potential energy.
If the hill...

8 through 10 done please!!
3.13.6
Question 110 pts
A 319 kg motorcycle is parked in a parking garage. If the car has
35,494 J of potential energy, how many meters above ground is the
car? Report your answer to 1 decimal place. Please do not include
units or the answer will be marked incorrect.
Flag this Question
Question 210 pts
A box sitting on the top of a hill has 252 J of potential energy.
If the hill is...

answer all questions
3.13.6
Question 110 pts
A 319 kg motorcycle is parked in a parking garage. If the car has
35,494 J of potential energy, how many meters above ground is the
car? Report your answer to 1 decimal place. Please do not include
units or the answer will be marked incorrect.
Flag this Question
Question 210 pts
A box sitting on the top of a hill has 252 J of potential energy.
If the hill is 279 meters...

MATHEMATICS
1. The measure of location which is the most likely to
be
influenced by extreme values in the data set is the a. range
b.
median c. mode d. mean
2. If two events are independent, then a. they must be
mutually
exclusive b. the sum of their probabilities must be equal to one
c.
their intersection must be zero d. None of these alternatives
is
correct. any value between 0 to 1
3. Two events, A and B,...

Please read the article and answear about
questions.
Determining the Value of the Business
After you have completed a thorough and exacting investigation,
you need to analyze all the infor- mation you have gathered. This
is the time to consult with your business, financial, and legal
advis- ers to arrive at an estimate of the value of the business.
Outside advisers are impartial and are more likely to see the bad
things about the business than are you. You should...

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