1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Snowcat [4.5K]
3 years ago
8

The scale is 1:30 and their are 10 boulders. How many boulders are their in the real pond

Physics
1 answer:
Alenkasestr [34]3 years ago
7 0

Answer:

the correct answer is C

Explanation:

When we express that the scale is 1:30 we mean that the objects of the realization are reduced by a factor of 30 in the graph, for example a distance of 30 cm in the graph is represented by a distance of 1 cm.

Therefore something that in the graph has n value to bring it to real size must be multiplied by the scale.

Applying this to our case if there is

               10 boulder on the chart

in reality there are #_boulder = 10 30

                                #_boulder = 300 boulder

so the correct answer is C

You might be interested in
An 80-kg football player travels to the right at 8 m/s and a 120-kg player on the opposite team travels to the left at 4.0 m/s.
77julia77 [94]

Answer:

See Explanation

Explanation:

m1(v1) + m2(v2)

Opposite turns the plus to subtraction.

80(8) - 120(4.0)

60 - 480 = 160 kg m/s to the right

7 0
2 years ago
Which statement about the effects of medium on the speed of a mechanical wave is true?
Anastasy [175]

C. A mechanical wave generally travels faster in gases than liquids.

7 0
3 years ago
I need the answers to these questions if u dont mind
Nonamiya [84]
there’s no photo. brainly hasent been working for me today so not sure
3 0
2 years ago
What is electrical energy​
creativ13 [48]

Explanation:

it is energy that flows of electric charge it has the ability to do work or apply force to move an object.

8 0
3 years ago
A 65.0-kg woman steps off a 10.0-m diving platform and drops straight down into the water. 1) If she reaches a depth of 3.20 m,
timurjin [86]

Answer:

F=2627.6N

Explanation:

The work done by this resistive force while traveling a distance <em>d</em> underwater would be:

W=F.d=-Fd

where the minus sign appears because the force is upwards and the displacement downwards.

This work is equal to the change of mechanical energy. At the diving plataform and underwater, when she stops moving, the woman has no kinetic energy, so all can be written in terms of her total change of gravitational potential energy:

W=\Delta E=U_f-U_i=mgh_f-mgh_i=mg(h_f-h_i)

Putting all together:

F=-\frac{W}{d}=-\frac{mg(h_f-h_i)}{d}=-\frac{(65kg)(9.8m/s^2)(-3.2m-10m)}{3.2m}=2627.6N

7 0
3 years ago
Other questions:
  • To demonstrate an elastic collision, a teacher places a tennis ball on the floor. She wants to hit the ball so that the followin
    15·1 answer
  • A spider hangs by a strand of silk at an eye level 20 cm in front of a plane mirror. You are behind the spider, 65 cm from the m
    11·1 answer
  • An object with a mass of 5kg accelerates at 2m/s2. How much force in Newtons(N) is needed to cause this to happen?
    5·1 answer
  • Why is it important to consider experimental error in all the empirical results presented?
    8·1 answer
  • What are 2applications of radar that you have heard of in your life? What can radar tell an observer about some object, whether
    8·1 answer
  • A charge of 4.4 10-6 C is located in a uniform electric field of intensity 3.9 105 N/C. How much work (in Joules) is required to
    9·1 answer
  • You can take your heart rate for 6 seconds and multiply by 10 to get the 60 second count quickly during
    13·1 answer
  • a condenser of capacitor 50 micro coulomb is charged to 10 volt the energy stored is can you do derivation please
    14·1 answer
  • Hurry pls I need help
    8·1 answer
  • Which statement is the best explanation for the graph?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!