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
Lelu [443]
3 years ago
6

Suppose a 96.10 kg hiker has ascended to a height of 1841 m above sea level in the process of climbing Mt. Washington. By what p

ercent has the hiker's weight changed from its value at sea level as a result of climbing to this elevation? Use g=9.807 m/s2 and R=6.371×106 m . Keep four significant figures in your weight calculation to find the percent difference, and enter your answer as a positive value.
Physics
1 answer:
lbvjy [14]3 years ago
6 0

Answer:

0.029%

Explanation:

Weight on the surface is given by,

F_W = mg = (96.1Kg)(9.8m/s^2)=941.78N

The acceleration due to gravity at given height is,

g_h=\frac{gR^2}{R+h^2}

The weight in another height is equal to

F_h=mg_h

F_h= m*\frac{gR^2}{R+h^2}

F_h = \frac{F_WR^2}{(R+h)^2}

F_h=\frac{(941.78)(6.371*10^6)}{(6.371*10^6+1841)}

F_h = 941.50N

The change of the Weight is,

\frac{F-F_h}{F}*100=\frac{941.78-941.50}{941.78}*100=0.029\%

You might be interested in
1. A 2,000-turn solenoid is 65 cm long and has cross-sectional area 30 cm2. What rate of change of current will produce a 600 Vo
JulsSmile [24]

Answer:

\frac{dI}{dt} = 2.59\ x\ 10^4\ A/s

Explanation:

First, we will calculate the inductance of the solenoid by using the following formula:

L = \frac{\mu_o AN^2}{l}

where,

L = self-inductance of solenoid = ?

μ₀ = permeability of free space = 4π x 10⁻⁷ N/A²

A = Cross-sectional area = 30 cm² = 3 x 10⁻³ m²

N  = No. of turns = 2000

l = length = 65 cm = 0.65 m

Therefore,

L = \frac{(4\pi\ x\ 10^{-7}\ N/A^2)(3\ x\ 10^{-3}\ m^2)(2000)^2}{0.65\ m}\\\\L =  0.0232\ H

Now, we will use Faraday's law to calculate the rate of change of current:

emf = L\frac{dI}{dt}\\\\ \frac{dI}{dt} =\frac{emf}{L} \\\\ \frac{dI}{dt} =\frac{600\ V}{0.0232\ H}\\\\  \frac{dI}{dt} = 2.59\ x\ 10^4\ A/s

5 0
3 years ago
Of the choices below, the planet furthest from the sun is
elixir [45]
D. Mars    hope that helps you
6 0
3 years ago
Read 2 more answers
What happens to the water when you throw rock into a pond
Anarel [89]

Answer:

The water usually rushes back too enthusiastically, causing a splash – and the bigger the rock, the bigger the splash. The splash then creates even more ripples that tend to move away from where the rock went into the water.

4 0
3 years ago
Read 2 more answers
The high spark voltage supplied to the spark plugs of an automobile is increased from the battery voltage by the principle of .
Furkat [3]
<span>A coil is used to step up the electric potential difference using the principle of induction.</span>
8 0
3 years ago
Which of the following must be true about the object labeled X in the circuit below?
Alex787 [66]

the answer is c and if I help you  thank me
4 0
3 years ago
Other questions:
  • What is the value of the impulse obtained from the graph?
    5·1 answer
  • The diagram below illustrates the law of reflection.
    15·1 answer
  • A tornado passes in front of a building, causing the pressure to drop there by 25% in 1 second. Part A If a door on the side of
    8·1 answer
  • Beta particles will:
    15·2 answers
  • in a mass spectrometer ionized molecules are accelerated from rest through a potential difference V into a uniform magnetic fiel
    12·1 answer
  • Part C
    15·1 answer
  • U
    14·1 answer
  • A set of charged plates that have an area of 8.22*10^-4 m^2 and a separation of 2.42*10^-5 m have a potential difference of 25.0
    8·2 answers
  • A spring stretches 2 meters when a 12 N force is acting on it. What is the spring constant (k)? 10 N/m 0.17 N/m 2 N/m 6 N/m
    13·1 answer
  • In the figure , if Q = 30 uC , q = 5.0 uC , and d = 30 cm , what is the magnitude of the electrostatic force on g?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!