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
Natalija [7]
3 years ago
6

Following Newton's Third Law, when a cannon goes off the cannon ball exerts a force on the cannon and the cannon exerts the same

force back on the cannon ball. Why does the cannon ball travel severl hunder feet while the cannon itself only moves a few inches?
Question 5 options:

Because the mass of the cannon ball is much less than the cannon

Because the cannon is so much larger in size than the cannon ball

Because the cannon ball is more aerodynamic than the cannon

Because the forces were not really equal
Physics
1 answer:
bagirrra123 [75]3 years ago
6 0

Answer:

  • <u>First choice:</u><u><em> Because the mass of the cannon ball is much less than the cannon</em></u>

Explanation:

Indeed, <em>Newton's Third Law</em>, i.e. the action-reaction law, states that any action (force) will have a reaction (force) of same magnitude but opposite direction.

That means that when a cannon goes off the cannon ball exerts a force on the cannon and the cannon exerts the same force back on the cannon ball.

To find out how much the cannon ball and the cannon itsel move, you must consider Newton's second law.

  • F = m×a (force equal mass times acceleration).

Clearing the acceleration you get:

  • a = F / m

Then, since the mass is in the denominator and both the force that the cannon ball exerts on the cannon and the cannon exerts on the cannon ball are equal in magnitude, then the body that has the smaller mass (the cannon ball)  will experience a greater acceleration, which is stated by the first choice: because the mass of the cannon ball is much less than the cannon.

You might be interested in
How does the motion of atoms relate to hot air balloons?
Neporo4naja [7]
Magic magic and more magic
6 0
4 years ago
Suppose that a star has a spectrum that includes red, blue, and violet lines spaced in the pattern of the lines from hydrogen bu
ladessa [460]

Answer:

It can be concluded that the star is moving away from the observer.

Explanation:

Spectral lines will be shifted to the blue part of the spectrum if the source of the observed light is moving  toward the observer, or to the red part of the spectrum when is moving away from the observer (that is known as the Doppler effect).

The wavelength at rest for this case is 434 nm and 410 nm (\lambda_{0} = 434nm, \lambda_{0} = 410nm)

Redshift: \lambda_{measured}  >  \lambda_{0}

Blueshift: \lambda_{measured}  <  \lambda_{0}

Since, \lambda_{measured} (444nm) is greater than \lambda_{0} (434 nm) and \lambda_{measured} (420nm) is greater than \lambda_{0} (410 nm), it can be concluded that the star is moving away from the observer

6 0
3 years ago
Determine the minimum work per unit of heat transfer from the source reservoir that is required to drive a heat pump with therma
Sloan [31]

Answer:

The minimum work per unit heat transfer will be 0.15.

Explanation:

We know the for a heat pump the coefficient of performance (C_{HP}) is given by

C_{HP} = \dfrac{Q_{H}}{W_{in}}

where, Q_{H} is the magnitude of heat transfer between cyclic device and    high-temperature medium at temperature T_{H} and W_{in} is the required input and is given by W_{in} = Q_{H} - Q_{L}, Q_{L} being magnitude of heat transfer between cyclic device and low-temperature T_{L}. Therefore, from above equation we can write,

&& \dfrac{Q_{H}}{W_{in}} = \dfrac{Q_{H}}{Q_{H} - Q_{L}} = \dfrac{1}{1 - \dfrac{Q_{L}}{Q_{H}}} = \dfrac{1}{1 - \dfrac{T_{L}}{T_{H}}}

Given, T_{L} = 460 K and T_{H} = 540 K. So,  the minimum work per unit heat transfer is given by

\dfrac{W_{in}}{Q_{H}} = \dfrac{T_{H} - T_{L}}{T_{H}} = \dfrac{540 - 460}{540} = 0.15

8 0
4 years ago
How does a parallel circuit differ from a series circuit
Lapatulllka [165]
<span>A series circuit has one path for electrons, but a parallel circuit has more than one path.</span>
8 0
4 years ago
Read 2 more answers
Predicting future events in a person's life based on the lines on the palm of the hand is an example of (2 points)
igomit [66]

Answer:

Pseudoscience

Explanation:

Predicting future events in a person's life based on the lines on the palm of the hand is an example of Pseudoscience. A pseudoscience is a false science that makes claims based on faulty or nonexistent scientific evidence and often characterized by contradictory, excessive claims, etc. These types of Pseudoscientific beliefs are common due to widespread "scientific illiteracy among different societies.

8 0
4 years ago
Read 2 more answers
Other questions:
  • When the only force affecting an object is gravity,that object is in _______________
    15·1 answer
  • Which statement is true about an airplane wing during flight
    13·1 answer
  • It takes a car 1.75h to go from mile marker 10 to mile marker 115. What is the average speed of the car
    14·2 answers
  • The thing that is circled, correct me if im wrong please.
    12·2 answers
  • The average distance from Earth to the Moon is 384,000 km. In the late 1960s, astronauts reached the Moon in about 3 days. How f
    12·1 answer
  • In a weak acid solution, _____.
    5·1 answer
  • ASAP!! please What is the answer? MCQ. Thank you
    9·2 answers
  • I didnt want my question public i made a mistake i want it taken down
    6·1 answer
  • In each of the following cases, determine where the car has no
    15·1 answer
  • Which is the atomic number of the carbon diagram below!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!