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
Montano1993 [528]
3 years ago
11

If you were to drive to some city south of your current location, how would the altitude of the celestial pole in the sky change

?
Physics
1 answer:
aleksandrvk [35]3 years ago
4 0

Answer:

For northern hemisphere, the altitude will decrease. For southern hemisphere, the altitude will increase

Explanation:

Because of the spherical shape of the Earth the altitude (separation from the horizon in degrees) of the celestial pole changes as per the latitude of the place. The altitude of the celestial pole is equal to the latitude of the observer.

If the observer is in the northern hemisphere and moves south the altitude of the celestial pole will decrease.

If the observer is in the southern hemisphere and moves south the altitude of the celestial pole will increase.

You might be interested in
Gayle runs at a speed of 3.85 m/s and dives on a sled, initially at rest on the top of a frictionless snow-covered hill. After s
enot [183]

Answer:

Final velocity at the bottom of hill is 15.56 m/s.

Explanation:

The given problem can be divided into four parts:

1. Use conservation of momentum to determine the speed of the combined mass (Gayle and sled)

From the law of conservation of momentum (perfectly inelastic collision), the combined velocity is given as:  

p_i = p_f  

m_1u_1 + m_2v_2 = (m_1 + m_2)v

v = \frac{(m_1u_1 + m_2v_2)}{(m_1 + m_2)}

v=\frac{[50.0\ kg)(3.85\ m/s) + 0]}{(50.0\ kg + 5.00\ kg)}= 3.5\ m/s  

2. Use conservation of energy to determine the speed after traveling a vertical height of 5 m.

The velocity of Gayle and sled at the instant her brother jumps on is found from the law of conservation of energy:  

E(i) = E(f)  

KE(i) + PE(i) = KE(f) + PE(f)  

0.5mv^2(i) + mgh(i) = 0.5mv^2(f) + mgh(f)  

v(f) = \sqrt{[v^2(i) + 2g(h(i) - h(f))]}

Here, initial velocity is the final velocity from the first stage. Therefore:  

v(f) = \sqrt{[(3.5)^2+2(9.8)(5.00-0)]}= 10.5\ m/s

3. Use conservation of momentum to find the combined speed of Gayle and her brother.  

Given:

Initial velocity of Gayle and sled is, u_1(i)=10.5 m/s

Initial velocity of her brother is, u_2(i)=0 m/s

Mass of Gayle and sled is, m_1=55.0 kg

Mass of her brother is, m_2=30.0 kg

Final combined velocity is given as:

v(f) = \frac{[m_1u_1(i) + m_2u_2(i)]}{(m_1 + m_2)}  

v(f)=\frac{[(55.0)(10.5) + 0]}{(55.0+30.0)}= 6.79 m/s  

4. Finally, use conservation of energy to determine the final speed at the bottom of the hill.

Using conservation of energy, the final velocity at the bottom of the hill is:  

E(i) = E(f)  

KE(i) + PE(i) = KE(f) + PE(f)  

0.5mv^2(i) + mgh(i) = 0.5mv^2(f) + mgh(f)  

v(f) = \sqrt{[v^2(i) + 2g(h(i) - h(f))]} \\v(f)=\sqrt{[(6.79)^2 + 2(9.8)(15 - 5.00)]}\\v(f)= 15.56\ m/s

6 0
3 years ago
When we breathe, we inhale oxygen and exhale carbon dioxide plus water vapor. Which likely has more mass, the air that we inhale
Solnce55 [7]

Answer:

If the same volume of air is inhaled and exhaled, the air we breathe out normally weighs more than the air we breathe in.

Since the output from the body normally exceeds the input, breathing leads to weight loss.

Explanation:

If equal volumes of gas is inhaled and exhaled, the exhaled gas is heavier.

The inhaled gas contains Oxygen and majorly Nitrogen.

The exhaled gas contains CO₂, H₂O and a very large fraction of the unused inhaled air that goes into the lungs.

So, basically, the body exchanges O₂ with CO₂ and H₂O (and some other unwanted gases in the body) in a composition that CO₂, the heavier gas of the ones mentioned here, is prominent.

So, because the mass leaving the body is more than the mass entering, breathing leads to a loss of weight. This is one of the reasons why we need food for sustenance. Breathing alone will wear one out.

5 0
3 years ago
30 POINTS!!! PLZZZZZZ HELP
lesya [120]
Psychological disorder is a kind of disease, related to brain functioning, they are very different, but can't be distinguished at high level so they are not extremely different

In short, Your Answer would be: "False"

Hope this helps!
7 0
3 years ago
Read 2 more answers
The chart shows data for four moving objects.
vesna_86 [32]

Answer:

Y

Explanation:

by adding all the numbers

5 0
3 years ago
Which is more accurate slope o average?
Novay_Z [31]
As long as the graph is a straight line they both will give same answer. Edit: In the case of errors,I think the most fitting slope line is more accurate method,because taking average is same as drawing a line from initial to final point of the line and taking its slope.
Hope it helps
5 0
4 years ago
Other questions:
  • You can decrease the frequency of a standing wave on a string by __________.
    11·2 answers
  • A photon is scattered from an initially stationary electron within a metal. How does the frequency of the photon change upon sca
    6·1 answer
  • To find the number of neutrons in an atom you would subtract?
    8·1 answer
  • Houses with carpet are much quieter than houses with tile or hardwood floors because of sound wave A) absorption. B) diffraction
    9·2 answers
  • In a nuclear power plant, _____.
    6·2 answers
  • Suppose a dolphin sends out a series of clicks that are reflected back from the bottom of the ocean 80 m below. How much time el
    9·1 answer
  • A spaceship moves away from a space station at one-half the speed of light. If a person in the space station flashes a light bea
    15·1 answer
  • A car accelerates from rest, and travels 400 m in 3.5 seconds. If
    9·1 answer
  • For a series circuit, as lights are added, the voltage across each bulb increases/ decreases/ remains the same ?
    13·1 answer
  • Take some time to research a utility plant. If there is one in your area, you may even visit it. Otherwise, look up a type of pl
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!