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
gladu [14]
3 years ago
10

How was Galileo curious and observant

Physics
1 answer:
Otrada [13]3 years ago
4 0
When he didn't get answers to his ?s he would try to find the replies himself though research and study. <span />
You might be interested in
Where is the most of the liquid freshwater on earth located?
iren2701 [21]

Not sure but i will say D

6 0
3 years ago
Read 2 more answers
Let the displacement function of a particle is x(t)=(20t^2-15t+200). Find the total displacement, instantaneous velocity and ins
irga5000 [103]

Answer:

A.) 39.5 m

B.) 0

C.) 60m/s^2

Explanation:

Given that a displacement function of a particle is x(t)=(20t^2-15t+200).

To Find the total displacement,

Reduce everything by dividing them by 5

X(t) = 4t^2 - 3t + 40 ...... (1)

For instantaneous velocity, differentiate x(t). That is,

dy/dt = 60t - 15 ...... (2)

But dy/dt = velocity.

If dy/dt = 0, then

60t - 15 = 0

60t = 15

t = 15/60

t = 0.25s

Substitutes t in equation (1)

Total displacement will be

X(t) = 4(0.25)^2 - 3(0.25) + 40

X(t) = 0.25 - 0.75 + 40

Total displacement = 39.5 m

To calculate instantaneous velocity, substitute t into equation (2)

V = 60 (0.25) - 15

V = 0.

and to find instantaneous acceleration, differentiate dv/dt

dv/dt = 60

Therefore, acceleration = 60 m/s^2

4 0
3 years ago
Heat transfers energy from a hot object to a cold object. Both objects are isolated from their surroundings. The change in entro
aniked [119]

To develop this problem we will start from the definition of entropy as a function of total heat, temperature. This definition is mathematically described as

S = \frac{Q}{T}

Here,

Q = Total Heat

T = Temperature

The total change of entropy from a cold object to a hot object is given by the relationship,

\Delta S = \frac{Q}{T_{cold}}-\frac{Q}{T_{hot}}

From this relationship we can realize that the change in entropy by the second law of thermodynamics will be positive. Therefore the temperature in the hot body will be higher than that of the cold body, this implies that this term will be smaller than the first, and in other words it would imply that the magnitude of the entropy 'of the hot body' will always be less than the entropy 'cold body'

Change in entropy \Delta S_{hot} is smaller than \Delta S_{cold}

Therefore the correct answer is C. Will always have a smaller magnitude than the change in entropy of the cold object

5 0
3 years ago
A force acting over a large area will exert less pressure per square inch than the same force acting over a smaller area.
babunello [35]

Answer:

True

Explanation:

Pressure is defined as:

p=\frac{F}{A}

where

F is the magnitude of the force perpendicular to the surface

A is the surface

Therefore, pressure is inversely proportional to the area of the surface:

p\propto \frac{1}{A}

this means that, assuming that the forces in the two situations (which have same magnitude) are both applied perpendicular to the surface, the force exerted over the smaller area will exert a greater pressure. Hence, the statement"

<em>"A force acting over a large area will exert less pressure per square inch than the same force acting over a smaller area"</em>

is true.

8 0
3 years ago
An example of forced convection is the movement of hot air by a fan.
zavuch27 [327]
This is true. let me know if im wrong.
4 0
3 years ago
Other questions:
  • Which formula is used to calculate average velocity?
    6·1 answer
  • A train is moving on a flat, continuous track. label all forces acting upon the object
    8·1 answer
  • A sodium lamp emits light at the power P = 70.0 W and at the wavelength λ = 600 nm, and the emission is uniformly in all directi
    10·1 answer
  • A string that is restricted at both ends has a length of 1.50 m. what is the wavelength of the string’s fundamental frequency?
    12·1 answer
  • What is the value of x if one side is 8 and the other side is 6
    13·1 answer
  • 1. When two atoms of the same nonmetal react, they often form a(an)
    15·1 answer
  • Is it possible to accelerate and not speed up or slow down?
    9·1 answer
  • What sort of fitness component would dance be<br> categorized under
    10·1 answer
  • DESPERATE!! WILL GIVE BARINLIST AND THANKS
    9·2 answers
  • A thermal reservoir can be characterized as a thermal body that is large enough that when energy is dumped into it or taken out
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!