Answer:
no idea
Explanation:
i have absolutely no idea
The two thigh bones (femurs), each of cross-sectional area 10 cm² support the upper part of a human body of 40 kg. Estimate the average pressure sustained by the femurs.
Answer:
Explanation:
Pressure = Force / Area
Force is weight of the upper body = mass*gravity
= 40*10 (take g as 10m/s^2)
= 400N
Area of each bone = 10cm^2 and there are two thigh bones
Total area = 10*2
= 20cm^2
= 0.002m^2
Pressure = 400/0.002
= 200000 N/m^2
= 2*10^5 Pa
During what moon phase is a lunar eclipse possible.
Write a personal narrative (from the perspective of the Earth) of your year long journey around the sun. Be sure to include information about the phases of the moon.
Here is a funny note
I started my journey through a rocket .Before which our team created a space satelite with suitable requirements which can handle sun's heat from closest .We took enough foods and minerals to take during our journey.We took around 2years to reach suns orbit .Then we travelled around it via our satelite .We collected some datas about it .Then we came back.That was a happy and adventurous journey.Compare and contrast the electric forces with the gravitational force.
please help, i need this asap
Answer:
They both act between two bodies without any means of contact. However gravitational force acts on mass while the electric force acts on charge. Gravitational force are only attractive while electric field can be attractive/repulsive. Electric field is much stronger than gravitational field.
Explanation:
What is the best definition of profit?
Answer:
Excess currency after a series of deals or fees.
Explanation:
Let's put profit in perspective by using an example. For example, let's say you spend 72 dollars to build a certain product, then you sell that same product to your friend for 116 dollars. It costed 72 dollars to build that product and you sold it for 116, after subtracting the costs for building the product the excess currency is what you would call profit. Profit is your overall goal when running a business, you want to sell a product and make profit from it.
Hope this helps.
profit is your gain on any problem,situation or opportunity given to you
When do astronomers now think that the ""dark energy"" began to accelerate the expansion of the universe?.
Answer:
Cosmologists estimate that the acceleration began roughly 5 billion years ago. Before that, it is thought that the expansion was decelerating, due to the attractive influence of matter. The density of dark matter in an expanding universe decreases more quickly than dark energy, and eventually the dark energy dominates.
Explanation:
Pls, choose me as brainliest!
Answer:
1988
Explanation:
Dark energy was discovered in 1998 with this method by two international teams that included American astronomers Adam Riess and Saul Perlmutter and Australian astronomer Brian Schmidt.
An airplane propeller rotates with an angular speed of 260rad/s. Through what angle does the propeller rotate in 5.0s? Give your answer in both radians and degrees
Answer:
I hope this will help......
A police officer on a mountain bike is cruising at a speed of 3.50m/s, when he sees a wanted
criminal, standing on a corner, 75m ahead of him. If the police officer accelerates at a rate of
2.00m/s^2, how much time will he take to reach the corner?
Answer:
7 seconds
Explanation:
please see paper!
vf² = vo²+2ad
vf=vo+at
vf²=3.5²+2.2.75
vf²=312.25
vf=17.67 m/s
vf=vo+at
17.67 = 3.5 +2t
t=7.085 s
Can someone help me please? I’ve been trying to solve these questions all day.
#16
If we put a resistor in circuit it will slow the speed of current
Let's check ohms law
[tex]\\ \rm\Rrightarrow \dfrac{V}{I}=R[/tex]
So if resistance is more current is less#17
Again use ohms law
[tex]\\ \rm\Rrightarrow V=IR[/tex]
[tex]\\ \rm\Rrightarrow V\propto I[/tex]
Voltage must be increasedWhat is the main difference between cardio and strength-training activities? A. Cardio activities increase your physical strength, while strength-training activities work your heart and lungs. B. Cardio activities work your heart and lungs, while strength-training activities strengthen your muscles. C. Cardio activities require short bursts of energy, while strength-training activities strengthen your body over long durations. D. Cardio activities improve your joints' range of motion, while strength-training activities work your heart and lungs.
Answer:
B: Cardio is really to improve your circulatory and etc while strength that's common sense
Explanation:
Answer:
B
Explanation:
What happens to the air in an air pump when being pumped into a tire? What happens to the air when allowed to escape from a tire?
waves that move through matter are only called ______________ waves
9) How much kinetic energy does a person have riding a bike is going 12 m/s? Let's assume that the
bike and person have a mass of 70kg.
A)
B)
C)
Kinetic Energy = [tex]\frac{1}{2} m*v^2[/tex]
m: mass -->70 kgv: velocity --> 12 m/sKinetic energy = [tex]\frac{1}{2}*70*(12^{2} ) = 5040[/tex] Joules
Hope that helps!
An elongated drop of blood was found with a width of 4.33 mm and a length of 5.0
mm. At what angle did the blood drop hit the surface?
0°
30°
60°
90°
SinФ = w/l
SinФ = 4.33 / 5.0
Ф = arcsin 4.33/5.0
Ф = 59.99 degrees
Round to 60 degrees
What is the gravitational potential energy of a 1 kg ball that is 2 meters above the floor?
a
3 j
b
9.8 j
c
19.6 j
d
21 j
e
29.8 j
Answer:
C
Explanation:
We have to use the formula for potential energy(mgh).
MGH=(1)*(9.8)*(2)=19.6
What is the all time speed record for completing the iditarod?.
•What is the all time speed record for completing the iditarod?
Answer:
•In 2016, Dallas broke his own record, finishing in 8 days, 11 hours, 20 minutes and 16 seconds. In 2017, Mitch Seavey broke all previous records by finishing in 8 days, 3 hours, 40 minutes and 13 seconds, which currently stands as the fastest winning time for the Iditarod.
Explanation:
#Let's Study
#I Hope It's Help
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#Carry On Learning
Explain that sound is a longitudinal wave that has a frequency, wavelength, and speed.
shape of houses built in areas with hot climate and materials used
Answer:
Cement and sand will do
Explanation:
because without it you can't build
Answer:
Shape of houses built in areas with hot climate
Compact house forms, rather than sprawling, multi-wing designs work best in hot locales. Home designs with shaded porches, wrap around porches or plans with courtyards that create a shaded open area within the building are ideal.
How do you build a house in hot climates?
Place courtyards centrally to enhance cooling and ventilation. ...
Choose the right materials. ...
Use waterbodies and landscaping effectively. ...
Shade terraces and outdoor spaces. ...
Create sheltered, barrier-free spaces for air circulation. ...
Extend roofs to protect the walls and windows from direct heat.
Materials used building in areas with hot climate
The most common materials used for building walls in the warm-humid regions are stones, and earth-based bricks.
Concrete, bricks, and tile have a high thermal mass due to the large amount of heat energy needed to change their temperatures. This makes concrete an ideal building material for climates that are hot during the day but cooler at night.
Which of the following is NOT an example of good static flexibility?
A.
doing and holding a split
B.
running a mile in six minutes
C.
holding a ballet position for six minutes
D.
crossing your ankles behind your head
Answer:
running a mile in six minutes
Explanation:
Answer:
Not example is B: Running a mile in six minutes
Two bulldozers are pushing on a large tree trunk as shown. (last photo)
Click on the diagram until it correctly represents the expected movement and force.
The tree will fall in the south eastern side of the area due to two bulldozer.
Direction of tree fallingThe tree falls in the sloppy direction due to both bulldozer which apply force from two directions. One bulldozer apply force on the tree from western side whereas the other bulldozer apply force on the tree from north side so that's why we can say that the tree will fall in the south eastern side of the area.
Learn more about force here: https://brainly.com/question/12970081
Answer:
Maybe it; the 4th image
Explanation:
The upper bulldozer have more force than the lower bulldozer. Therefore making the down force longer than the right force
Refer to the following series circuit: + R R, = 17.2 V R, = 52 1:11 V = 15V R, 1 I Calculate the total power developed in the circuit. P= Choose... watts Choose... 15 120 98 Submit Answer Skip C Notes
Series connection
R=R1+R2=10+5=15[tex]\Omega[/tex]V=15VNow
[tex]\\ \rm\Rrightarrow P=\dfrac{V^2}{R}[/tex]
[tex]\\ \rm\Rrightarrow P=\dfrac{15^2}{15}[/tex]
[tex]\\ \rm\Rrightarrow P=15W[/tex]
A Force of 940N does a Work of 3760 Joule in displacing a given object. Find the displacement.
Question :-
A Force of 940 N does a Work of 3760 J in Displacing a given object . Find the Displacement .Answer :-
Displacement is 4 meter .[tex] \rule {180pt} {2pt} [/tex]
Given :-
Force = 940 NewtonWork = 3760 JouleTo Find :-
Displacement = ?Solution :-
As per the provided information in the given question, Force is given 940 Newton . Work is given 3760 Joule . And, we have been asked to calculate the Displacement .
For calculating the Displacement , we will use the Formula :-
Displacement = Work / ForceTherefore , by Substituting the given values in the above Formula :-
⇒ Displacement = Work / Force
⇒ Displacement = 3769 / 940
⇒ Displacement = 4
Hence :-
Displacement = 4 meter .[tex] \underline {\rule {180pt} {4pt}} [/tex]
A bus wheel has a diameter of 0.80 m and an angular velocity of 20 rad/s. What is the linear velocity of the wheel?
The linear velocity of the wheel is 16 m/s.
What is linear velocity?Linear velocity is the rate of change of displacement with regard to time when the object is moving in a straight line
To calculate the linear velocity of the wheel, we use the formula below.
Formula:
v = ωr............. Equation 1Where:
v = Linear velocityω = Angular velocityr = Radius of the wheel.From the question,
Given:
ω = 20 rad/sr = 0.80 mSubstitute these values into equation 1
v = 20(0.8)v = 16 m/s.Hence, The linear velocity of the wheel is 16 m/s.
Learn more about linear velocity here: https://brainly.com/question/25749514
Does everything in a black hole contain a singularity?
Answer:
All black holes contain singularities, however not all singularities involve black holes. A neutron star may be dense, matter the size of a pinhead can weigh as much as the earth, but there seems to be a mathematical cut-off point beyond which a black hole is formed.
An arch carries the thrust of weight to its _____(1)______. With a _____(2)______, the horizontal part of the structure supports all the weight above it. A. (1) center; (2) post-and-bearing b. (1) base; (2) springing line c. (1) keystone; (2) groin vault d. (1) sides; (2) post-and-lintel Please select the best answer from the choices provided A B C D.
Option D is correct. An arch carries the thrust of weight to its sides with a post-and-lintel.
What is an arch?
An arch is indeed a vertical curving construction that covers an elevated space that may or may not sustain the load above it or the pressure gradient against it
In the case of a horizontally arched, such as an embankment dam. While arches and vaults are often confused, A vault is defined as an ongoing arch forming a roof.
Option D satisfies the fill-in blanks option.
Hence option D is correct. An arch carries the thrust of weight to its sides with a post-and-lintel.
To learn more about the arch refer to the link;
https://brainly.com/question/18162421
what is the difference between serious and parallel circuit
Based on the chemical equation provided, use the drop-down menu to choose the coefficients that will balance the chemical equation.
( )H2 + ( )O2 → ( )H2O
Answer:
2h2+2o→2h2o is the answer
Answer:
2
1
2
Explanation:
5 10 points Sanzida conducted an experiment that required a wire carrying a current to be wrapped around a metal core. When she placed th metal rod, she observed the magnet move toward the rod. Which conclusion can Sanzida draw from this experiment? O The current in the wire has created a gravitational field with its south pole at the top of the rod. The current in the wire has created a magnetic field with its south pole at the top of the rod. The current in the wire has created a magnetic field with its north pole at the top of the rod. The current in the wire has created a gravitational field with its north pole at the top of the rod.
The current in the wire has created a magnetic field with its north pole at the top of the rod. A magnetic field influences electric currents.
What is a magnetic field?A magnetic field is a type of field that influences the position and direction of the electric current.
The magnetic field also refers to the one where magnetic forces act to shape an electrical current.
The only material and/or body capable of altering an electrical current in a magnetic field is the presence of another magnetic field.
Learn more about magnetic fields here:
https://brainly.com/question/14411049
Provide a reason why houses are painted with dark colours in cold countries.
Answer:
which is necessary to keep the building warm. Light colors reflect the light hence they are wisely used in tropical ...
Here in the US, not all houses are painted dark colors. In years past, it was common for the ...
Dark colors absorb heat, which is why houses in cold countries are painted with dark colours.
Based on fossil evidence, about how long ago did the
first single-celled life form appear on Earth?O 130 million years ago
O 1.5 billion years ago
O
2.5 billion years ago
O
4.1 billion years ago
Answer:
4.1 billion
Explanation: