Question

Find samples about: Scalars and Vectors Newton’s Laws Gravitational Law

Answer #1

**Samples about Scalars :-**

Time, volume, speed, mass, temperature are samples of Scalars as these quantities have no direction.

**Samples about vectors:-**

The samples of vector quantities are velocity, momentum, force, acceleration as these quantities have direction and magnitude.

**Samples about Newton's law :-**

The samples of Newton's laws of motion are walking on a street, pulling or pushing an object, driving a car, playing hockey etcs. As it shows us how by applying force object loses its state of inertia.

**Samples about Gravitational Law:-**

According to the laws of gravitation every mass attract each other with a certain force i.e the force of gravity. The samples of Gravitational law is attraction of masses, tides in the sea due to lunar attraction, falling apples from the tree towards the ground etcs.

These are the samples of these laws. Thank you

You learned about Newton’s third law in PHY 211. How is Newton’s
third law applicable to the electrostatic force? What happens to
the force if one of the objects is neutral?

2. Write down Newton’s 3 Laws of Motion. What assumptions must
be made for Newton’s Laws to be valid?
3. What quantities have we learned about that are conserved?
What must be true for each to be conserved?

Newton’s Gravitational Law predicts the force of attraction
between two massive objects that are some distance apart: Fgravity
= G m1m2/ r^2
(a) Given F is in units of Newtons, m is units of kilograms and
r is in units of meters, what are the units of the universal
gravitational constant, G, in meters, kilograms and seconds? Show
your working.[2]
(b) If one of the objects doubles in mass, how much does the
predicted force of attraction change between the...

Newton’s so-called “discovery” of gravity actually
referrers to his statement that the force of gravitational
attraction between two objects is proportional to the product of
the masses of the objects and inversely proportional to the
distance between them (in equation form this is
F=Gm1m2/r2; where G is the
Universal Gravitational constant).
1.Is this a law or model?
2.What would have to be present (or absent) to convert it
to the other (model to law or law to model)?

Research and find out about laws in Virginia that relate to CPR.
Do Good Samaritan laws cover the administration of CPR and the use
of an AED? There are other laws that are put into place to change
policies, for example Gwyneth’s Law. Please give a summary of a law
and how it applies. Do you agree that this/these laws should be in
place? Make sure you include references. Be thorough, write up
should be at least one page.

ASSIGN each
observation to one of the Newton’s Laws and explain it in terms of
that law.
Law 1 = A; Law 2 = B; Law 3 = C.
A puck on ice slides almost all the way across an ice rink
while it travels only a short distance on a rough floor.
When you throw a rock, you feel a force pushing back against
you and you must maintain your balance. If you are in a boat, the
boat...

This question is about Newton’s law of cooling, which states
that the temperature of a hot object decreases proportionally to
the difference between its temperature and the temperature of the
surroundings. This can be written as dT dt = −k(T − Ts), where T is
the temperature, t is time, k is a constant and Ts is the
temperature of the surroundings. For this question we will assume
that the surroundings are at a constant 20◦ and A that the...

The ISS orbits the Earth at an altitude of 400 km.
a) Write down Newton’s Universal law of gravitation.
b) Write down the magnitude of the Earth’s gravitational pull at
this altitude.
c) Find the orbital speed of the ISS assuming a circular
orbit.
d) Find the period of the resulting orbit.

Newton’s version of Kepler’s third law is: P2 = 4
π2 / [G (M1 + M2)] ×
a3. The space shuttle orbits 261 km above the Earth's
surface. How often do the astronauts see a sunrise (in
minutes)?
Use the gravitational constant G = 6.67 × 10-11
m3 kg-1 s-2, the mass of the Earth
M = 5.97 × 1024 kg, and the radius of the Earth to be
7100 km.

Using the Newton’s second law model for a vibrating mass-spring
system with damping and no forcing, 〖my〗^''+by^'+ky=0, find the
equation of motion if m=10 kg, b=40 kg/sec, k=240 kg/sec2,
y(0)=1.0, and y^' (0)=0.0 m/sec.

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