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
PtichkaEL [24]
3 years ago
13

Physics questions please help me

Physics
1 answer:
Ahat [919]3 years ago
5 0
Hi,Find  answers from Task 5

1.(X+4)+(X)+(X+4)+(X)=50cm

4x+8=50cm

4x=42

X=10.5cm

Length=10.5+4=14.5cm

Width=10.5cm

Area= length × width=(10.5/100) × (14.5/100) =0.0152m2

2. Volume of a sphere= 4/3 ×π×r³

4/3 ×π×r³=3.2×10^-6 m³

r³=3.2×10^-6 m³/1.33×π

r³=7.64134761e-7

r=0.00914m

Surface area of the blood drop= 4πr²

=4×3.142×0.00914×0.00914=0.00105m²

3.

Equation of an ideal gas     = PV =n RT  

Equation for pressure, = P= n RT/V

Equation for the volume of an ideal gas= V= n RT/P

If the volume of gas doubles ,V(new)=  2n RT/P

Equation for temperature of an ideal gas, T = PV/n R

If temperature of gas triples, T (new)= 3PV/n R

New Equation for Pressure, = n× R× (3PV/n R)/(2n RT/P)

Pressure factor increase= P(new)/P(old)  ={ n× R× (3PV/n R)/(2n RT/P)}/{ n RT/V}

=3PV²/2n RT
You might be interested in
Which of the following is the best example of a primary circular reaction?
olga55 [171]

Primary Circular Reactions (1-4 months): This substage involves coordinating sensation and new schemas. For example, a child may suck his or her thumb by accident and then later intentionally repeat the action. These actions are repeated because the infant finds them pleasurable.

4 0
3 years ago
Are forces of attraction among the particles in all mater? true or false.
Luden [163]

Answer:

the answer is true

Explanation:

3 0
3 years ago
Read 2 more answers
A 350-g baseball is shot out of a small cannon with a velocity of 9.0 m/s. The baseball flies horizontally at a constant height
stira [4]

Answer:

9.5 kg m^2/s

Explanation:

The angular momentum of an object is given by:

L=mvr

where

m is the mass of the object

v is its velocity

r is the distance of the object from axis of rotation

Here we have:

m = 350 g = 0.35 kg is the mass of the ball

v = 9.0 m/s is the velocity

r = 3.0 m is the distance of the object from axis of rotation (if we take the ground as the centre of rotation)

Therefore, the angular momentum is:

L=(0.35)(9.0)(3.0)=9.5 kg m^2/s

4 0
3 years ago
this refers to the process of manufacturing that introduced powered machinery to the production of goods​
Sidana [21]
This had to do with gain power and trade inequality business
5 0
3 years ago
A theory is a hyothesis that has been varified by multiple investigations. <br> True or false
irakobra [83]
<span>A theory is a hyothesis that has been varified by multiple investigations. 

true</span>
7 0
3 years ago
Other questions:
  • For a magnetic field strength of 2T, estimate the magnitude of the maximum force on a 1-mm-long segment of a single cylindrical
    14·1 answer
  • When attempting to develop better decision making skills, communication with peers should be kept to a minimum. True or false
    7·1 answer
  • How does the position of an object relate to the energy stored in an object?
    6·1 answer
  • What did you learn about the vocal music of cordillera, mindoro, palawan and visayas
    6·1 answer
  • Which image shows an example of the strong nuclear force in action?
    14·1 answer
  • What I didn't even cross 1000 , how it can be possible...​
    15·1 answer
  • What is the difference between light and electromagnetic wave?.
    9·1 answer
  • Which would most likely cause a decrease in the rate of energy production in a fusion nuclear reactor?
    7·2 answers
  • Even if all stars were the same distance from Earth, their absolute magnitude and
    12·1 answer
  • According to the nebular theory of solar system formation, which law best explains why the solar nebula spun faster as it shrank
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!