Example

A 1.8 m tallman stand in an elevator accelerating upward at 12 m/s?,

what is the blood pressure in the brain and foot.

Take the height difference between the heart and the brain to be

0.35 m?

13.3 x 103 Pa] & [Pblood = 1060 kg.m-3]

Note: [: P Heart

Answer:

b

Explanation:

it compresses hot air turning into cool air almost like a reverse tornado

Answer:

It increases the pressure and temperature of the refrigerant.

Explanation:

The purpose of the compressor is to circulate the refrigerant in the system under pressure, this concentrates the heat it contains. At the compressor, the low pressure gas is changed to high pressure gas.

Answer:

Electromechanical transducer,

Explanation:

this is the answer I hope u got it

Answer:

yes it is a correct answer

Answer:

9.836 ms^-2

Explanation:

If

r= 3re

m= 9me

But

g= Gm/r^2

G= 6.67 × 10^-11

me= 6 × 10^24 Kg

re= 6.38 × 10^6 m

g= 6.67 × 10^-11 × 9×6 × 10^24/(3 ×6.38 × 10^6)^2

g= 9.836 ms^-2

Answer:

Same charge, positive.

Please see below as the answer is self-explanatory.

Explanation:

Explanation:

..........the answer is insulater

Answer

plutonium

Explanation:

brainliest please

Answer:

This doesn't seem to really be a physics problem:

In physics stress is usually defined as Young's Modulus or Bulk Modulus

In the case of Young's Modulus Y would be defined as

Y = Stress / Strain or  Force / Area

So the stress would be the force acting on some particular area: in the case of a wire the area is merely the area of the wire where the force is applied.

So maybe, they mean that stress would be an increase in blood pressure or some other physiological reaction due  to an externally applied force.

This question is incomplete, the complete question is;

A parallel-plate capacitor is made from two aluminum-foil sheets, each 3.0 cm wide and 5.00 m long. Between the sheets is a mica strip of the same width and length that is 0.0225 mm thick. What is the maximum charge?

(The dielectric constant of mica is 5.4, and its dielectric strength is 1.00×10⁸ V/m)

Answer: the maximum charge q is 716.85 μF

Explanation:

Given data;

with = 3.0 cm = 0.03

breathe = 5.0 m

Area = 0.03 × 5 = 0.15 m²

dielectric strength E = 1.00 × 10⁸

∈₀ = 8.85 × 10⁻¹²

constant K = 5.4

maximum charge = ?

the capacitor C = KA∈₀ / d

q = cv so c = q/v

now

q/v = KA∈₀ / d

q =  vKA∈₀/d = EKA∈₀

we substitute

q = (1.00 × 10⁸) × 5.4 × 0.15 ×  8.85 × 10⁻¹²    

q = 716.85 × 10⁻⁶ F

q = 716.85 μF

the maximum charge q is 716.85 μF

Answer:

2.09 rad/s

Explanation:

Given that,

A toy car makes 4 laps in 12 s.

We need to find the angular velocity of the toy car. We need to find the angular velocity of the toy car.

4 laps = 25.13 rad

So,

[tex]v=\dfrac{25.13\ rad}{12\ s}\\\\v=2.09\ rad/s[/tex]

So, the angular velocity of the toy car is 2.09 rad/s.

Answer:

79 I believe! don't mind the rest sjjdjdiwowjekwhfjdoaoqhenfixiwnsodjd djdjsiwuwieodjskrkf

Answer : The weight of the car is 9800 N

Explanation :

It is given that,

The mass of the car, m = 1000 kg

We have to find the weight of the car. The weight of an object is defined as the force acting on it under the action of gravity. The mass of an object is the amount of matter present in it.

Using second law of motion :

W = m g

Where

m is the mass of the car

g is the acceleration due to gravity g = 9.8 N/kg

W = 1000 kg × 9.8 N/kg

W = 9800 N

So, the weight of the car is 9800 N.

Hence, this is the required solution.

Answer: The weight of the car in newtons is 9800N/kg

Explanation:

Answer:

yes it is possible

Explanation:

if the body is travelling with uniform speed in a circular track its speed remains the same but the velocity is non-uniform as the direction of the body is changing every time.

eg: a body in uniform circular motion has constant speed but its velocity changes at every point during the course of motion. Whenever, the direction changes, velcoity changes.

Answer:

efficiency can be expressed in terms of power.

If so, power=force*velocity

P= (mass×gravity)*velocity

p= 1600×9.81×37

p=580752

Answer:

400 J

Explanation:

From the question given above, the following data were obtained:

Mass (m) = 5 kg

Height (h) = 8 m

Workdone (Wd) =?

Workdone by gravitational force is given by the following equation:

Wd = mgh

Where:

Wd => is the Workdone.

m => is the mass of object

g => is the acceleration due to gravity

h => is the height to which the object is located.

With the above formula, we can obtain the workdone as follow:

Mass (m) = 5 kg

Height (h) = 8 m

Acceleration due to gravity (g) = 10 m/s²

Workdone (Wd) =?

Wd = mgh

Wd = 5 × 10 × 8

Wd = 400 J

Thus, the workdone by gravitational force is 400 J

Answer:

F =  73.7 N = 74 N (rounding off)

Explanation:

In order to get the box to start moving, Mr. Ames must push it with a force equal to the frictional force acting on it. Therefore, this force can be calculated through the following formula:

[tex]F = frictional force = \mu R[/tex]

where,

μ = coefficient of friction = 0.55

R = Normal Force on Box = Weight of Box with books = 134 N

Therefore,

[tex]F = (0.55)(134\ N)\\[/tex]

F =  73.7 N = 74 N (rounding off)

Answer:

no distance is moved as w=f×d

Answer:

[tex]Impulse = 8.0Ns[/tex]

Explanation:

Given

[tex]Force = 80.0N[/tex]

[tex]Mass = 0.25kg[/tex]

[tex]Time = 0.10s[/tex]

Required

Determine the impulse

The impulse is calculated as follows:

[tex]Impulse = Force * Time[/tex]

Substitute values for Force and Time

[tex]Impulse = 80.0N * 0.10s[/tex]

[tex]Impulse = 8.0Ns[/tex]

Hence, the impulse experienced is 8.0Ns

Answer:

[tex]V=14m/s[/tex]

Explanation:

From the Question we are told that

Mass of A and B is 60kg

Speed of A=2m/s

Speed of B=1m/s

Mass of bag =5kg

Generally the momentum of the astronaut  A and bag is mathematically given as

  [tex]M_A=(60+5)*2[/tex]

   [tex]M_A=130kgm/s[/tex]

Generally to avoid collision the speed of astronaut be should be less than or equal to that of astronaut A with the bag

Therefore for minimum requirement speed of astronaut A should be given by astronaut B's speed which is equal to 1

Therefore

  [tex]130=(60*1)=(5*v)[/tex]

   [tex]V=14m/s[/tex]

To avoid collision with B, A throws the bag with a speed of 26 m/sec.

Given-

The mass of the two astronauts A and B is 60 kg.

The mass of astronaut A is 65 kg with the box.

The speed of astronaut A is 2 m/sec.

The speed of astronaut B is 1 m/sec.

The mass of the bag is 5 kg.

The momentum of a body is the product of its mass and velocity. Thus the momentum of astronaut A is,

[tex]M_{A} =m_{a} \times v_{a}[/tex]

[tex]M_{A} =(60+5)\times2[/tex]

[tex]M_{A} =130[/tex]

To avoid the collision with B, A throws the bag with a speed v. For this the momentum after the trough must be equal to the momentum of A. Therefore,

[tex]M_{A} =5\times v_{r}[/tex]

[tex]130 =5\times v_{r}[/tex]

[tex]v_{r}= \dfrac{130}{5}[/tex]

[tex]v_{r}=26[/tex]

Hence, to avoid collision with B, A throws the bag with a speed of 26 m/sec.

For more about the velocity, find the link below-

https://brainly.com/question/862972

Answer:

The color of the light is determined by the frequency of the light wave. Red, is lowest, frequency and violet is the highest.

The wavelengths of visible light split into the rainbow's hues as it passes through a prism because each color has a unique wavelength.

The range of all EM radiation types is known as the electromagnetic (EM) spectrum. The light source from a bulb in your home and electromagnetic frequency from a radio station are two examples of electromagnetic radiation. Radiation refers to the energy that moves and disperses as it does.

The wavelength of visible light affects its color. These lengths span the spectrum, from 700 nm at the red end to 400 nm at the violet. The only electromagnetic fields that we can perceive are visible light waves. These waves represent the rainbow's colors to us.

The wavelengths divide into the rainbow's hues as the whole visible light spectrum passes through a prism because each color has a unique wavelength.

More about the electromagnetic spectrum link is given below.

https://brainly.com/question/23727978

#SPJ6

Answer:

A.

Explanation:

Answer:

The correct option is B.

away from each other (they repel)

Explanation:

This because when current flows in opposite direction in wire, the electrons in them are at high density or electrons in the wires will be at high density which is as a result of contraction of the length due to relativistic of the length, this make the wires to move away from each other or repel.

Given that,

Number of turns, N = 25

Magnetic field, B = 1.5 T

The coil has a crosssectional area of 0.80 m2

The coil exits the field in 1.0 s.

To find,

Induced emf in the coil.

Solution,

The induced emf in the coil is given by :

[tex]\epsilon=\dfrac{-d\phi}{dt}\\\\=\dfrac{dB}{dt}\\\\=\dfrac{NBA}{t}\\\\=\dfrac{25\times 1.5\times 0.8}{1}\\\\=30\ V[/tex]

So, the induced emf in the coil is 30 V.

Answer:

the volume that has 1.0m^2 of water from the surface of the lake is 4.3

Explanation:

The computation of the volume is as follows;

The Bulk modulus is

= K = 2.3 × 10^9 Pa

K = - V dP ÷ dV

dV = - V dP ÷ K

dV = - (1 × 101.3 × 1000) ÷  2.3 × 10^9

= - 4.3 × 10^-3 m^3

So the volume that has 1.0m^2 of water from the surface of the lake is 4.3

Hence the same is relevant and considered

Answer:

volume = 683.53 [tex]m^{3}[/tex]

Explanation:

From the given question,

area  = 2420 [tex]ft^{2}[/tex]

height = 10 ft = 3.048 m

But,

1 [tex]ft^{2}[/tex] = 0.092903 [tex]m^{2}[/tex]

So that,

2420 [tex]ft^{2}[/tex] = 224.8254 [tex]m^{2}[/tex]

Volume = area x distance

             = 224.8254 x 3.048

             =  683.5262

volume = 683.53 [tex]m^{3}[/tex]

Answer:

B) the number of cycles per second perceived by the human ear

Explanation:

The best expression that describes pitch is that it is the number of cycles per second perceived by the human ear.

For a wave train, the number of cycles per second is frequency. Whereas the period is the amount of time taken for a longitudinal wave to produce one cycle.

The distance between two corresponding parts of a transverse wave is its wavelength.

Answer:

Explanation:

F = 0.000000000042716 or 4.2688e-11

G = 6.67 × 10−11 Nm2 /kg2

m1 = 2kg

m2 = 2kg

R = 2.5 m ⇒ R^2 = 6.25

F =  6.67 × 10^−11 ( 2 * 2) / 6.25

⇒ F = 6.67 × 10^−11 (4) / 6.25

⇒ F = 2.668e-10 / 6.25

∴ F = 4.2688e-11

Answer:

x = 9.87 hours ago.

Further explanation is present below.

Explanation:

Data given:

Air Temperature = 26.7°C (81°F)

Body temperature = 34.4°C (93.9°F)

We are given that, Livor mortis was absent. Secondly, The body exhibited some stiffness in the face and eyelids.

So, it can be concluded that, body must have died recently, as Livor mortis was absent plus the presence of stiffness in the face and eyelids. Furthermore,

The normal body temperature = 37°C

Body temperature in our case = 34.4° C

Difference = 37 -34.4 = 2.6°C

And Air temperature = 26.7°C

Which is a very low difference, in addition, it has not acquired the air temperature so, all this evidence certifies that body died recently.

Now, we have to calculate, how recently it died.

Formula:

0.78 . x = difference of body temperature and air temperature

Where, x = number of hours = time required,

0.78 . x = (34.4 - 26.7)

0.78 . x = 7.7

x = 7.7/0.78

x = 9.87 hours ago.

It means that, naked male corpse was died 9.87 hours ago.

Now, we are asked to find out clothing on the body had made a difference or not.

So, Yes it would definitely make a difference. As body would have more warmer than being naked. and it would result in a calculation of a different time of death. (body temperature would have > 34.4°C)

Answer:

max

Explanation:

because its right 90/7