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
Sergeu [11.5K]
3 years ago
15

A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge 235 m below. If the plane is traveling hori

zontally with a speed of 250 km/hr (69.4 m/s) how far in advance of the recipients (horizontal distance) must the goods be dropped
Physics
1 answer:
11111nata11111 [884]3 years ago
5 0

Answer:

481 m

Explanation:

To fall 235 m, the time required is

t = √(2H/g)

t= √(2\times235/9.8)

t=6.92 seconds.

The supplies will travel forward

6.92 \times 69.4 ≈ 481 m

Therefore, the goods must be dropped 481  m in advance of the recipients.

You might be interested in
Consider a product with three components in​ series, with reliabilities of​ 0.90, 0.80, and 0.99 for components​ A, B, and​ C, r
Feliz [49]

Answer:0.853

Explanation:

Given

Reliability of A is 0.90

Reliability of B is 0.80

Reliability of C is 0.99

B has a backup with reliability of 0.8

i.e. B has a component in parallel to it.

A,B& C is series.

B actual reliability is

R_b=1-\left ( 1-0.8\right )\left ( 1-0.8\right )

R_b=0.96

Thus R_{net} is given by

R_{net}=R_A\times R_B\times R_C

R_{net}=0.9\times 0.96\times 0.99

R_{net}=0.8553

5 0
3 years ago
In nuclear reaction 5 kg of reactants give 2kg of products
dlinn [17]
Choice A is correct.======Kinetic energy equation:   KE = (1/2)(m)(v²)This tells us that KE is directly proportional to mass and the square of velocity. In other words, the more mass and more velocity an object has, the more kinetic energy.If an object is sitting at the top of a ramp, there is no velocity and therefore no kinetic energy.    Choices B and D are wrong.A golf ball has more mass than a ping-pong ball, so a ping-pong ball would have less kinetic energy than a golf ball rolling off the end of a ramp.    Choice C is wrong.Choice A is correct.


6 0
3 years ago
Horizontal abduction involves the movement of the arm or thigh in the transverse plane from a(n) _____ position to a lateral pos
ollegr [7]
There is a horizontal abduction and horizontal adduction in the transverse plane that is imaginary bisector that divides the body into two halves upper or top and lower or bottom halves.
<span>Horizontal abduction involves the movement of the arm or thigh from a medial or anterior position to a lateral position and in horizontal adduction, the movement is reverse that is from lateral position to anterior position.</span>
8 0
3 years ago
According to the general theory of relativity, what are consequences of the curvature of space-time? Check all that apply. The d
Svetlanka [38]

Answer:

The dilation of time.

The falling of objects.

The changing of paths of light.

Explanation:

I have explained in the image attached below.

From the explanation, the correct ones are;

The dilation of time.

The falling of objects.

The changing of paths of light.

4 0
3 years ago
Vector A with arrow lies in the xy plane. Both of its components will be negative if it points from the origin into which quadra
Blizzard [7]

Answer:

C

Explanation:

From the question we are told that a vector on the x and y plane face their negative axis

Generally  in the x and y plane thr negative y axis is made to face down opposite the positive y axis

Whilst the negative x axis faces the left which is also alternate to the positive x axis

Generally A vector pointing towards the x and y negative axis fro  the origin (0) will definitely be in the third quadrant

8 0
3 years ago
Other questions:
  • An atom or group of atoms that has a positive or negative charge is called
    6·1 answer
  • When I hurricane nearest land what causes the most damage
    6·2 answers
  • 6. Willingness to take turns is one way we can express our attitudes in
    8·1 answer
  • Evaluate the following statement and explain why it is either true or false: If a spacecraft could travel fast enough, it could
    15·1 answer
  • what is the resistance of a light bulb if a potential difference of 120 v will produce a current of 0.5 a in the bulb? 0.0042 0.
    14·2 answers
  • An arteriole has a radius of 25 μm and it is 1000 μm long. The viscosity of blood is 3 x 10-3 Pa s and its density is 1.055 g cm
    15·1 answer
  • Suppose that during a test drive of two​ cars, one car travels 224 miles in the same time that a second car travels 160 miles. I
    5·1 answer
  • What causes a gravitational field around an object?<br> density<br> mass<br> shape<br> volume
    14·1 answer
  • Has anyone seen the large hadron collider?
    11·1 answer
  • PLease help with this this is pretty hard for me i kinda get it but not fully
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!