i need this ASAP please!!!
What is the significance of the discovery of exoplanets?
a. they may possibly be inhabited or harbor life.
b. they can provide natural resources for the future.
c. they help our understanding of the formation of planetary bodies.
d. they help calibrate gps satellites.
e. they help understand the nature of the expansion of the universe.​

Answer:

False

Explanation:

The cart comes to rest from 1.3 m/s in a matter of 0.30 s, so it undergoes an acceleration a of

a = (0 - 1.3 m/s) / (0.30 s)

a ≈ -4.33 m/s²

This acceleration is applied by a force of -65 N, i.e. a force of 65 N that opposes the cart's motion downhill. So the cart has a mass m such that

-65 N = m (-4.33 m/s²)

m = 15 kg

Answer:

Es e mer freaks, tdk ijrmks rkspjbscfnk ijr freacbo erk eppnckl et orjubl nkvkn. \dk mkbtkr ji hess ji tdk mercs wknn efjvk tdk orjubl, djwkvkr. \dkrkijrk, tdk freacbo ijrmks kxkrt e tjrquk efjut tdk mkbtkr ji hess tdettkbls tj rjtetk tdk irjbt ji tdk mer ljwbwerl. \dcs, cb turb, meusks eb cbmrkeskl upwerl ijrmk tj fk kxkrtklfy tdk irjbt sprcbos, ubtcn tdk bkt tjrquk emtcbo jb tdk mer rkturbs tj zkrj.

<.

\dk ijrmk tdet emmknkretks e hjtjrmymnk cs e ijrwerl ijrmk eppnckl et orjubl nkvkn. \dk mkbtkr ji hess ji tdkhjtjrmymnk, djwkvkr, cs efjvk tdk orjubl. \dkrkijrk, tdk emmknkretcbo ijrmk kxkrts e tjrquk jb tdk mymnk tdettkbls tj rjtetk tdk irjbt wdkkn upwerl.

9.

Mjbsclkr eb ecrpnebk prjpknnkr jr e mkcncbo ieb tdet cs gust stertcbo tj rjtetk. Cb tdksk mesks, tdk bkt ijrmk cszkrj fkmeusk tdk mkbtkr ji hess cs bjt emmknkretcbo. Djwkvkr, tdk bkt tjrquk cs bjbzkrj ebl tdk ebouneremmknkretcjb cs bjbzkrj.

4.

E mer emmknkretcbo irjh rkst cs bjt cb stetcm kqucncfrcuh fkmeusk cts mkbtkr ji hess cs emmknkretcbo. ]chcnerny,eb ecrpnebk prjpknnkr tdet cs gust stertcbo up cs bjt cb stetcm kqucncfrcuh fkmeusk ct des eb ebouner emmknkretcjb.

50.

Sks. _dkb eb ecrpnebk

–

s kbocbk sterts up irjh rkst tdk prjpknnkr des e bjbzkrj rjtetcjben emmknkretcjb,tdjuod cts trebsnetcjben emmknkretcjb cs zkrj.

56.

\dk tecn rjtjr jb e dkncmjptkr des e djrczjbten excs ji rjtetcjb, es jppjskl tj tdk vkrtcmen excs ji tdk hecbrjtjr. \dkrkijrk, tdk tecn rjtjr prjlumks e djrczjbten tdrust tdet tkbls tj rjtetk tdk dkncmjptkr efjut e vkrtcmenexcs. Es e rksunt, ci tdk ebouner spkkl ji tdk hecb rjtjr cs cbmrkeskl jr lkmrkeskl, tdk tecn rjtjr meb kxkrt ebjppjscbo tjrquk tdet prkvkbts tdk kbtcrk dkncmjptkr irjh rjtetcbo cb tdk jppjsctk lcrkmtcjb.

5<.

Bj. Ci tdk lcvkr

–

s cbctcen ebouner hjhkbtuh cs zkrj, ct hust stey zkrj ubnkss eb kxtkrben tjrquk emts jb dkr.E lcvkr bkkls tj stert jii wctd et nkest e shenn ebouner spkkl, wdcmd meb tdkb fk cbmrkeskl fy ijnlcbo cbtj etumakl pjsctcjb.

]jnutcjbs tj Prjfnkhs ebl Mjbmkptuen Kxkrmcsks

5.

Pcmturk tdk Prjfnkh

7 \dk ijrmk cs eppnckl cb e lcrkmtcjb pkrpkblcmuner tj tdk deblnk ji tdkwrkbmd ebl et tdk kbl ji tdk deblnk.

]tretkoy7

[sk kquetcjb 55-5 tj icbl tdk ijrmk irjh tdk abjwb tjrquk ebl tdk nkbotd ji tdkwrkbmd.

]jnutcjb7

]jnvk kquetcjb 55-5 ijr

I  

7

( )( )

scb5; Bh90 Bscb0.6; hscb30

r I  I r  

ό δ ό δ  

8⋋8 8 8°

Cbscodt7

E njbokr wrkbmd meb kxkrt e nerokr tjrquk ijr tdk sehk ehjubt ji ijrmk.6.

Pcmturk tdk Prjfnkh

7 \dk wkkl cs punnkl fy kxkrtcbo e ljwbwerl ijrmk jb tdk kblji tdk tjjn deblnk.

]tretkoy7

]kt tdk tjrquk jb tdk tjjn kquen tj tdk ijrmk kxkrtkl fy tdk wkkl tchks tdkhjhkbt erh ebl sjnvk ijr tdk ijrmk.

]jnutcjb7

]jnvk kquetcjb 55-5 ijr

I  

7

wkklwkklwkklwkkl

5.6= Bh=5 B0.0<0 h

I r  I r  

ό ό  

8⋋8 8 8

Cbscodt7

\dk tjrquk hust fk tdk sehk kvkrywdkrk jb tdk tjjn. \dkrkijrk, tdk debl hust kxkrt e5.6= Bh0.66 h;.9 B

⋋ 8

ijrmk tj prjlumk e =5-B ijrmk et tdk wkkl. \dk ijrmk cs huntcpnckl fy e iemtjr ji 66<;.;.

8

Explanation:

The torque applied will be the average of the 3 torque calculated.

Torque = 12.01 Nm

Torque of a couple is the product of a force and its perpendicular distance to the direction of the force. Torque is synonymous to moment.

From the question, the given radius is 0.53m. The perpendicular distance for each torque will be 2 x 0.53 = 1.06 m

We will calculate for each torque

T1 = F1d

T1 = 8 x 1.06 = 8.48 Nm

T2 = F2d

T2 = 15 x 1.06 = 15.9 Nm

T3 = F3d

T3 = 11 x 1.06 = 11.66 Nm

The torque applied will be the average of the 3 torque calculated. That is,

Torque = (8.48 + 15.9 + 11.66)/3

Torque = 36.04 /3

Torque = 12.01 Nm

Learn more here: https://brainly.com/question/23169143

Answer:

Th average force impact is [tex]F = 168.298 \ N[/tex]

Explanation:

From the question we are told that  

   The mass of the golf ball is  [tex]m_g = 26.7 \ g = 0.0267 \ kg[/tex]

    The angle made is [tex]\theta = 33.6 ^o[/tex]

    The range of the golf ball  is [tex]R = 190 \ m[/tex]

     The duration of contact is [tex]\Delta t = 7.13 \ ms = 7.13 *10^{-3} \ s[/tex]

Generally the range of the golf ball is mathematically represented as

       [tex]R = \frac{v^2 sin2(\theta)}{g}[/tex]

Here v  is the velocity with which the golf club propelled it with, making  v the subject

       [tex]v = \sqrt{\frac{R * g}{sin 2 (\theta)} }[/tex]

=>     [tex]v = \sqrt{\frac{190 * 9.8}{sin 2 (33.6)} }[/tex]

=>     [tex]v = 44.94 \ m/s[/tex]

Generally the change in momentum of the golf ball is mathematically represented as

      [tex]\Delta p = m * (v - u )[/tex]

here u  is the initial  velocity of the ball before being stroked and the value is 0 m/s

       [tex]\Delta p = 0.0267 * ( 44.94 - 0 )[/tex]

=>    [tex]\Delta p = 1.19996 \ kg \cdot m/s[/tex]

Generally the  average force of impact is mathematically represented as      

         [tex]F = \frac{\Delta p }{\Delta t}[/tex]

=>        [tex]F = \frac{1.19996 }{7.13 *10^{-3}}[/tex]

=>        [tex]F = 168.298 \ N[/tex]

Answer:

refer to attachment

Explanation:

hope it will helps u

Answer: 5cm

Explanation:

Answer:

jury trial

Explanation:

rights to a fair trial by jury, or the whole innocent until proven guilty ya know

Answer:

(a) Normal force=7.48 N

Explanation:

N+F~1 sinθ-mg=0

=>N=1.5*9.8-12 sin37◦

=>N=14.7-7.22=7.48 N

Answer:

(a) [tex]Probability = 0.7599[/tex]

(b) [tex]Probability = 0.2646[/tex]

Explanation:

Represent losing with L and winning with W.

So:

[tex]L = 0.7[/tex] --- Given

[tex]n = 4[/tex]

Probability of winning would be:

[tex]W = 1 - L[/tex]

[tex]W = 1 - 0.7[/tex]

[tex]W = 0.3[/tex]

The question illustrates binomial probability and will be solved using the following binomial expansion;

[tex](L + W)^4 = L^4 + 4L^3W + 6L^2W^2 + 4LW^3 + W^4[/tex]

So:

Solving (a): Winning at least 1

We look at the above and we list out the terms where the powers of W is at least 1; i.e., 1,2,3 and 4

So, we have:

[tex]Probability = 4L^3W + 6L^2W^2 + 4LW^3 + W^4[/tex]

Substitute value for W and L

[tex]Probability = 4 * 0.7^3*0.3 + 6*0.7^2*0.3^2 + 4*0.7*0.3^3 + 0.3^4[/tex]

[tex]Probability = 0.7599[/tex]

Hence, the probability of her winning at least one is 0.7599

Solving (a): Wining exactly 2

We look at the above and we list out the terms where the powers of W is exactly 2

So, we have:

[tex]Probability = 6L^2W^2[/tex]

Substitute value for W and L

[tex]Probability = 6*0.7^2*0.3^2[/tex]

[tex]Probability = 0.2646[/tex]

Hence, the probability of her winning exactly two is 0.2646

Answer:wrong. Jts not velocity. Its period.

Explanation:

Took the test

The discovery of fossils remains of Cynognathus at both South America And Africa suggests that these continents used to be connected and later moved apart.

According to continental drift theory:

"All of the continents were once together as a single continent named Pangaea, which was surrounded by a Mega Ocean known as Panthalassa."

The continental drift theory was first proposed by Abraham Ortelius in 1596, and Alfred Wegener developed it in 1912.

To learn more about fossils, continents, continental drift, and Pangaea here,

https://brainly.com/question/2288828

#SPJ2

Answer:

The temperature and gravity both affects the density

Answer:

The power required to drive the pump is reduced in [tex]\frac{1}{8}[/tex].

Explanation:

From Turbomachinery, we find that power required to drive the pump ([tex]\dot W[/tex]) is directly proportional to the cube of the speed of rotation of the impeller ([tex]\dot n[/tex]). That is:

[tex]\dot W \propto \dot n^{3}[/tex]

[tex]\dot W = k\cdot \dot n ^{3}[/tex] (Eq. 1)

Where [tex]k[/tex] is the proportionality constant.

And now we eliminate the proportionality constant by constructing the following relationship:

[tex]\frac{\dot W_{B}}{\dot W_{A}} = \left(\frac{\dot n_{B}}{\dot n_{A}}\right)^{3}[/tex] (Eq. 2)

If we know that [tex]\frac{\dot n_{B}}{\dot n_{A}} = \frac{1}{2}[/tex], then:

[tex]\frac{\dot W_{B}}{\dot W_{A}} = \frac{1}{8}[/tex]

The power required to drive the pump is reduced in [tex]\frac{1}{8}[/tex].

Answer:

0.399 rev/s

Explanation:

Given that,

The diameter of a tornado, d = 74 m

Radius, r = 37 m

Linear velocity, v = 335 km/h = 93.05 m/s

We need to find the angular velocity in revolutions per second. Let it is [tex]\omega[/tex]. The relation between angular velocity and linear velocity is as follows :

[tex]v=r\omega\\\\\omega=\dfrac{v}{r}\\\\\omega=\dfrac{93.0556}{37}\\\\\omega=2.51\ rad/s[/tex]

or

[tex]\omega=\dfrac{2.51}{2\pi}\\\\\omega=0.399\ rev/s[/tex]

So, the angular velocity of the blade is 0.399 rev/s.

I feel like I'm in a city

Answer:

0.03 cm

Explanation: If the scale is 500:1, you have to divide 500 by 15 to get 0.03. You do not multiply 500 times 15 because the cells are smaller than the scale representation so you divide.

Answer:

(a) V₂ = 1.86 m/s

(b) Q = 5.1 x 10⁻⁴ m³/s

Explanation:

(a)

The formula derived for Venturi tube is as follows:

P₁ - P₂ = (ρ/2)(V₂² - V₁²)

where,

P₁ - P₂ = Difference in Pressure of Inlet and Outlet = 1.2 KPa = 1200 Pa

ρ = Density of Gasoline = 7.4 x 10² kg/m³

V₂ = Exit Velocity = ?

V₁ = Inlet Velocity

Therefore,

1200 Pa = [(7.4 x 10²kg/m³)/2](V₂² - V₁²)

V₂² - V₁² = (1200 Pa)/(3.7 x 10² kg/m³)

V₂² - V₁² = 3.24 m²/s²   ------------------- equation (1)

Now, we will use continuity equation:

A₁V₁ = A₂V₂

where,

A₁ = Inlet Area = πd₁²/4 = π(0.0374 m)²/4 = 1.098 x 10⁻³ m²

A₂ = Exit Area = πd₂²/4 = π(0.0187 m)²/4 = 2.746 x 10⁻⁴ m²

Therefore,

(1.098 x 10⁻³ m²)V₁ = (2.746 x 10⁻⁴ m²)V₂

V₁ = (2.746 x 10⁻⁴ m²)V₂/(1.098 x 10⁻³ m²)

V₁ = 0.25 V₂  

using this value in equation (1):

V₂² - (0.25 V₂)² = 3.24 m²/s²

0.9375 V₂² = 3.24 m²/s²

V₂² = (3.24 m²/s²)/0.9375

V₂ = √(3.456 m²/s²)

V₂ = 1.86 m/s

(b)

For fluid flow rate we use the following equation:

Flow Rate = Q = A₂V₂ = (2.746 x 10⁻⁴ m²)(1.86 m/s)

Q = 5.1 x 10⁻⁴ m³/s

The formula for finding variables in a  Venturi tube is shown below:

P₁ - P₂ = (ρ/2)(V₂² - V₁²)

where, P₁ - P₂ is difference in pressure of Inlet and outlet, ρ = density, V₂ = exit velocity and V₁ is inlet velocity

P₁ - P₂ = 1.2 KPa = 1200 Pa

ρ = 7.4 x 10² kg/m³

V₂ = Exit Velocity = ?

V₁ = Inlet Velocity

We then substitute the variables into this equation.

P₁ - P₂ = (ρ/2)(V₂² - V₁²)

1200 Pa = [(7.4 x 10²kg/m³)/2](V₂² - V₁²)

V₂² - V₁² = (1200 Pa)/(3.7 x 10² kg/m³)

V₂² - V₁² = 3.24 m²/s²  ------ equation (1)

The  continuity equation A₁V₁ = A₂V₂ is then used

where,A₁ = Inlet area = πd₁²/4 = π(0.0374 m)²/4 = 1.098 x 10⁻³ m²

A₂ = Exit Area = πd₂²/4 = π(0.0187 m)²/4 = 2.746 x 10⁻⁴ m²

(1.098 x 10⁻³ m²)V₁ = (2.746 x 10⁻⁴ m²)V₂

V₁ = (2.746 x 10⁻⁴ m²)V₂/(1.098 x 10⁻³ m²)

V₁ = 0.25 V₂  

We then substitute the value into equation 1

V₂² - (0.25 V₂)² = 3.24 m²/s²

0.9375 V₂² = 3.24 m²/s²

V₂² = (3.24 m²/s²)/0.9375

V₂ = √(3.456 m²/s²)

V₂ = 1.86 m/s

This can be calculated using the formula

Flow Rate = Q = A₂V₂

                  = (2.746 x 10⁻⁴ m²)(1.86 m/s)

                 = 5.1 x 10⁻⁴ m³/s

Answer:

Bernoulli's theorem, in fluid dynamics, relation among the pressure, velocity, and elevation in a moving fluid (liquidor gas), the compressibility and viscosity (internal friction) of which are negligible and the flow of which is steady, or laminar.

Three properties of an ideal fluid that obey Bernoulli’s principle are :

1) incompressible

2) subjected to conservative forces

3) non - viscous

Bernoulli's principle  states that as the speed of moving fluid increases , the pressure within fluid decreases or it states that   if the fluid flows horizontally so that no change in gravitational potential energy occurs, then a decrease in fluid pressure is associated with an increase in fluid velocity.

As we know that Bernoulli's principle is only valid for ideal fluids which have following properties :

1) Should be incompressible

2) subjected to conservative forces

3) It should be non - viscous which means there is no internal friction in the flow .

learn more about Bernoulli's principle :

https://brainly.com/question/2249706?referrer=searchResults

#SPJ3

Answer:

C

Explanation:

The most commonly accepted theory of muscle growth states that microscopic tears within a muscle activate an inflammatory response process that causes dormant cells to build and regenerate muscle tissue; this is option c.

It has negative consequences on the muscle, and it is also known as "microtrauma," which occurs as a result of muscle contraction and is a normal part of the muscle repair and growth process. Here, the fibers in the muscle are damaged, and in response, the body initiates a repair process. This leads to muscle growth and increased strength and is helpful for muscle repair.

Hence, the most commonly accepted theory of muscle growth states that microscopic tears within a muscle activate an inflammatory response process that causes dormant cells to build and regenerate muscle tissue; this is option c.

Learn more about the microscopic tears in muscle here.

https://brainly.com/question/29457664

#SPJ2

Answer:

C

Explanation:

There's a reason newton's 3rd law is called action-reaction :D

A - 1st law/inertia

B - 2nd law/f=ma

Newton's third law of motion states that for each action there is an equal and opposite reaction or force. Thus, the correct option is C.

Newton's third law of motion states that for every action or force applied in nature there is an equal and opposite reaction or force.

According to Newton's third law of Motion, if an object A exerts a force on the object B, then the object B must exert a force which is of equal magnitude and opposite direction back on the object A. This law represents symmetry in nature with the forces which are always occur in pairs, and one body cannot exert a force which is on another object without experiencing a force itself.

Therefore, the correct option is C.

Learn more about Newton's law here:

https://brainly.com/question/15280051

#SPJ2

We are given:

Homer the Astronaut:

Mass of Homer the astronaut(m1) = 200 kg

initial velocity of Homer the astronaut(u1) = 5 m/s

Larry the Pal:

Mass of Larry the Pal (m2) = 150 kg

initial velocity of Larry the Pal (u2) = 0 m/s

Since they will move together after the collision, they will have the same velocity:

v1 = v2 = V

Solving for the Final velocity:

from the law of conservation of momentum:

m1u1 + m2u2 = m1v1 + m2v2

since v1 = v2 = V:

m1u1 + m2u2 = V(m1 + m2)

replacing the variables with the given values

200 * 5 + 150 * 0 = V(200 + 150)

1000 = 350V

V  = 1000 / 350

V = 2.86 m/s

Answer:

D- Z, X, Y, W

Explanation:

Correct on edge

Answer:

How long do you jump (sec) ?

Explanation:

Answer:

–1652 N. The negative sign indicate that the force is in opposite direction to car.

Explanation:

The following data were obtained from the question:

Mass (m) of car = 1400 kg

Time (t) = 11 s

Initial velocity (u) = 25 m/s

Final velocity (v) = 12 m/s

Force (F) applied on the car =?

Next, we shall determine the acceleration of the car. This can be obtained as follow:

Time (t) = 11 s

Initial velocity (u) = 25 m/s

Final velocity (v) = 12 m/s

Acceleration (a) =?

a = (v – u) /t

a = (12 – 25) /11

a = –13/11

a = –1.18 m/s²

Finally, we shall determine the force on the car as follow:

Acceleration (a) = –1.18 m/s²

Mass (m) of car = 1400 kg

Force (F) applied on the car =?

F = ma

F = 1400 × –1.18

F = –1652 N

Thus, the force on the car is –1652 N. The negative sign indicate that the force is in opposite direction to car.

Answer:

I am 15th in my state for 55m hurdles with a time of 10.4 seconds

Explanation:

BAM

Answer: 44 m per minute

Explanation:

(a)to find voltage of battery we use the wire containg 4 ohm resistor and 3 ohm resistor

the voltage of 4ohm = Ri=4x1.5=6V

the voltage of 3 ohm = Ri=3x1.5=4.5v

since voltage is additive in series then Voltage of batteries = 4.5+6=10.5V

(b) the currrent flowing in 20 ohm resistor is the same as 8 ohm resistor so

Voltage of 8 ohm + voltage of 20 ohm= 10.5

8i+20i=10.5

28i=10.5

i=0.375 A

Answer:

b

Explanation:

i took the test

Earth’s landmasses were first recognized as the continents we know today

135 million years ago.

Landmass is defines as a large area of land. It can also be referred to as the

continents we have today. There are seven types of earth landmasses and

they are

They were first discovered around 135 million years ago by the early

dwellers of the earth.

Read more on https://brainly.com/question/18125355

We are given:

extension of the spring (x) = 10 cm OR 0.1 m

Force applied to keep it in position (F) = 500 N

Solving for the spring constant:

We know that F = kx (when the spring is extended)

replacing the variables with the given values

500 = k * 0.1

k = 5000 N/m

This means that to extend the spring by 1 m, we have to apply a force of 5000 N

Answer:

Moment of inertia = 0.3862kg-m²

Explanation:

2.00x10³

2.80cm

145 rad

r = r⊥ x F

F is an applied force

r⊥ is the distance between the applied force and axis

Force exerted = 2.00x10³

r⊥ = 2.8cm = 0.028m

Alpha = 145rad/s²

r = 0.028m x 2.00x10³

r = 56.0N-m

To get the moment of inertia

56.0N-m² = (145rad/s²) x I

The I would be:

I = (56.0N-m²)/(145rad/s²)

I = 56/145

= 0.3862Kg-m²

This is the moment of inertia.

Thank you!