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
Nadya [2.5K]
3 years ago
11

A cave diver enters a long underwater tunnel. When her displacement with respect to the entry point is 20 m, she accidentally dr

ops her camera, but she doesn’t notice it missing until she is some 6 m farther into the tunnel. She swims back 10 m but cannot find the camera, so she decides to end the dive. How far from the entry point is she? Taking the positive direction out of the tunnel, what is her displacement vector relative to the entry point?
Physics
1 answer:
Sladkaya [172]3 years ago
7 0

Answer:

displacement vector is -16i

Explanation:

Given data:

Displacement relative to entry of tunnel is 20 m

Distance from entry of tunnel at which she notice about camera missing is 6 m

swim distance is 10 m

total distance from entry of tunnel after she swin back is 20+ 6 = 26 m

After covering 10 m to find a camera she will be at 26 -10 = 16 m

If direction out from tunnel is taken as positive  then her displacement vector with respect to entry of tunnel is - 16i

where i is unit positive vector.

You might be interested in
The natural discharge of electrical energy in the atmosphere is?
mojhsa [17]
The easy answer is lighting.
7 0
4 years ago
The floor of the Atlantic Ocean is spreading slowly. It spreads at the rate of 1 to 10 centimeters per year. Why would it be use
In-s [12.5K]

C because...

Models represent objects, events, and processes in the real world.

Models are often used when an object, event, or process

occurs too slowly or too quickly;

is too small or too large;

is too complicated or too dangerous.

The ocean is spreading at such a slow rate that it would take scientists 50 or more years to collect enough meaningful data from the ocean floor to complete a study. Therefore, scientists use models in order to both predict how the floor will keep spreading and to understand what the ocean floor looked like thousands of years in the past.

8 0
3 years ago
The upper arm muscle is _______________ to the skin.
Nikolay [14]

Answer:

The pectoralis major, latissimus dorsi, deltoid, and rotator cuff muscles connect to the humerus and move the arm. The muscles that move the forearm are located along the humerus, which include the triceps brachii, biceps brachii, brachialis, and brachioradialis.

5 0
3 years ago
Read 2 more answers
mass is 5 lb attached to a rope wound around a pulley. The radius of the pulley is 3 in. If the mass falls at a constant velocit
suter [353]

Answer:

The power transmitted to the pulley is 0.0455 hp.

Explanation:

Given;

mass attached to the rope, m = 5 lb

radius of the pulley, r = 3 in

constant rate of fall of the mass, v = 5 ft/s

acceleration due to gravity, g = 32.2 ft/s²

1 lbf = 32.2 lb.ft/s²

The power transmitted to the pulley is calculated as;

P = Fv

P = (mg)v

P = 5 \ lb \ \times \ 32.2 \ \frac{ft}{s^2} \ \times \ 5 \ \frac{ft}{s} \ \times \ \frac{1 \ lbf}{32.2 \ lb.ft/s^2}  \ \ = 25 \ \frac{ft.lbf}{s} \\\\

in horse power, the power transmitted is calculated as;

P = \frac{25 \ ft.lbf}{s} \ \times \ \frac{1 \ hp}{550 \ ft.lbf/s}  \ \ = 0.0455 \ hp

Therefore, the power transmitted to the pulley is 0.0455 hp.

3 0
3 years ago
Unlike the news media, which may be biased, science reporting can be depended on to be objective and not influenced by governmen
sveta [45]
The answer to the given statement above would be TRUE. Yes it is true that unlike the news media which may be biased, <span>science reporting can be depended on to be objective and not influenced by government policy and the interests of big corporations. Hope this answers your question.</span>
4 0
3 years ago
Other questions:
  • The gauge pressure in each of the four tires of an automobile is 230 kpa . if each tire has a "footprint" of 180 cm2 (area touch
    14·1 answer
  • Which layer of the sun do we normally see?
    6·1 answer
  • What happens to particles in a substance changes state
    7·2 answers
  • Boxing gloves are padded to lessen the force of a blow. (a) Calculate the force exerted by a boxing glove on an opponent’s face,
    13·1 answer
  • Perhaps the greatest of the Greek astronomers, Hipparchus compiled the first catalog of stars, 49) accurately measured their pos
    14·1 answer
  • HELP PLZ I will give you 10 points
    7·2 answers
  • The speed of light is 3 x 10^8 m/s. If its frequency is 4.11 x 10^4 Hz, what is its wavelength?
    14·1 answer
  • What lesson you get from the prevention and treatment of respiratory and circulatory disease?
    10·1 answer
  • Consider the schematic of the molecule shown, with two hydrogen atoms, H, bonded to an oxygen atom, O. The angle between the two
    11·1 answer
  • 3
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!