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
aleksklad [387]
3 years ago
10

Can someone help me please

Physics
1 answer:
TEA [102]3 years ago
8 0

Answer:

D

Explanation:

Because it is impossible for it to show the real depth of the ocean and how deep it is

You might be interested in
A lighthouse is located on a small island, 3 km away from the nearest point on a straight shoreline, and its light makes four re
lbvjy [14]

Answer:

The beam of light is moving at the peed of:

\frac{dy}{dt} = \frac{80\pi}{3} km/min

Given:

Distance from the isalnd, d = 3 km

No. of revolutions per minute, n = 4

Solution:

Angular velocity, \omega = \frac{d\theta'}{dt} = 2\pi n = 2\pi \times 4 = 8\pi    (1)

Now, in the right angle in the given fig.:

tan\theta' = \frac{y}{3}

Now, differentiating both the sides w.r.t t:

\frac{dtan\theta'}{dt} = \frac{dy}{3dt}

Applying chain rule:

\frac{dtan\theta'}{d\theta'}.\frac{d\theta'}{dt} = \frac{dy}{3dt}

sec^{2}\theta'\frac{d\theta'}{dt} = \frac{dy}{3dt} = (1 + tan^{2}\theta')\frac{d\theta'}{dt}

Now, using tan\theta = \frac{1}{m} and y = 1 in the above eqn, we get:

(1 + (\frac{1}{3})^{2})\frac{d\theta'}{dt} = \frac{dy}{3dt}

Also, using eqn (1),

8\pi\frac{10}{9})\theta' = \frac{dy}{3dt}

\frac{dy}{dt} = \frac{80\pi}{3}

7 0
3 years ago
Select the correct answer. Which of Newton's laws explains why your hands get red when you press them hard against a wall? A. Ne
STatiana [176]

Answer:

D newton third law

Explanation:

good luck

8 0
2 years ago
How much support force does a table exert on a book that weighs 15 N when the book is placed on the table?
mestny [16]

Answer:

15 N

Explanation:

According to Newton's third law of motion, to every action, there is an equal and opposite reaction. This reaction is equal in magnitude to the force acting but in an opposite direction.

Now, if the book weighs 15 N, an opposite equal force will be: N = -15 N

But the magnitude of this will be the absolute value which is 15N.

8 0
3 years ago
Asap pls hurry will mark brainiest
kifflom [539]
#1. A. Waxing crescent.
#2. 1.
#3. C.
#4. C.
6 0
3 years ago
_h2o2(aq)-_h2o(l) +o2(g)
zvonat [6]

Answer:

V02=9.78L

Explanation:

6 0
3 years ago
Other questions:
  • A constant voltage of 12.00 V has been observed over a certain time interval across a 1.20 H inductor. The current through the i
    5·1 answer
  • Why should we change away from using incandescent light bulbs
    9·1 answer
  • Is it true that mproving overall fitness may not be possible for people who have physical limitations.
    5·1 answer
  • A calculator has a resistance of 22 Ω. What is the power rating for this calculator when connected to a 1.5 V battery?
    13·1 answer
  • You create a plot of voltage (in V) vs. time (in s) for an RC circuit as the capacitor is charging, where V=V_{0} \cdot \left(1-
    11·1 answer
  • Stephanie está haciendo una investigación
    12·1 answer
  • What is the difference between longitudinal and transverse waves
    7·1 answer
  • HELP MEEEEE HURRRYYYY EASYY
    10·1 answer
  • How does the electric field intensity vary with the increase of distance of the point from the centre of a charged conducting sp
    8·1 answer
  • A diver 50 m deep in 10∘C fresh water exhales a 1.0-cm-diameter bubble. What is the bubble's diameter just as it reaches the sur
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!