The process of blood cell formation is known as ?

Answer:

Tendons: Tendons are cord-like, strong, inelastic structures that join skeletal muscles to bones

ligaments: Ligaments are elastic structures which connect bones to bones in joints.

Explanation:

Answer:

the answer is B.

Explanation:

The ball that is thrown straight up has more kinetic energy and more speed than the ball that is thrown straight down. Both balls have the same kinetic energy and speed.

The kinetic energy of a body can be determined as the energy of a moving physical system because of its motion. Work has to be done on an object to change its kinetic energy.

The kinetic energy of the moving system can be expressed as K.E. = ½mv²  where ‘m’ is mass while ‘v’ is the velocity of the object.

The potential Energy of the physical system can be described as the energy stored due to its position. The mathematical formula for the calculation of the potential energy can be expressed in the form of P.E = m×g×h where ‘g’ is the gravitational acceleration, ‘m’ is the mass and ‘h’ is the height in meters

When two identical balls are thrown from a cliff, each with the same speed. One ball is thrown straight up, and the other ball is straight down. Both balls will have the same kinetic energy as well as speed.

Learn more about kinetic energy and potential energy, here:

brainly.com/question/15764612

#SPJ2

Explanation:

Latent heat of evaporation is the heat required  to change water to vapor at the same temperature boiling temperature.(100°C)

That water turns into vapor  when heated at temperature more than 100°C without any increase in temperature.

that is latent heat of vaporization Q  = mL

Answer:

Explained below

Explanation:

1) The human arm: This is a type of simple machine called "Lever". In this type of machine, the elbow acts as the fulcrum, the palm serves as the load because that's where we place the load we want to carry. While the inner part of the arm which is the inner part of the elbow represents the effort because that is the joint we mover when making use of our arms.

2) Pulleys: An example of this in the human body is the knee cap where the direction of an applied force is changed. Thus means as it is in motion, it alters the direction for which the quadriceps tendon pulls on the tibia.

3) wheel and axle: An example of this in the human body is the lateral rotation of the shoulder joint medial. The humerus which is the bone between the shoulder and elbow will act as the axle while the rotator will be the will because when it is rotated a little bit, the humerus will move along with it.

Answer:

D

Explanation:

Answer:

D.

It reduces the rate at which electrons flow.

Answer:

Angle of incidence. = Angle of reflection

0° = 0°

30°. = 30°

42°. =. 42°

60°. =. 60°

90°. =. 90°

angle of incidence is always equal to angle of reflection on plane surface

Hope it helps

Answer:

(a) It is a destructive interference

(b) The places at which destructive interference occur on the line between the two in-phase sources, are 1.07798 m before and after the two sources

Explanation:

(a) The given parameters are;

The distance between the two in-phase sources, d = 3.50 m

The type of waves produced by the two sources = identical waves

The wavelength of the waves produced by the two sources, λ = 5.96 m

For constructive interference, we have;

d·sin(θ) = m·λ

Where, m = 0, 1, -1, 2, -2, ...

For destructive interference, we have;

[tex]d \cdot sin(\theta) = \left(m + \dfrac{1}{2} \right) \cdot \lambda[/tex]

d·sin(θ) = Δl =

Where, m = 0, 1, -1, 2, -2, ...

Therefore, given that λ > d, for constructive interference

sin(θ) = m·λ/d > 1 for m > 0 which is invalid as the maximum value for sin(θ) = 1

Therefore, the possible interference is destructive interference

(b) For destructive interference, when m = 0, we have;

[tex]3.5 \times sin(\theta) = \left(0 + \dfrac{1}{2} \right) \times 5.96[/tex]

∴ sin(θ) = (5.96/2)/3.5

θ = arcsin((5.96/2)/3.5)

By trigonometry, we have;

tan(θ) = (d/2)/l

Where

l = The location along the line

∴ l = (d/2)/(tan(θ))

By substitution, we have;

l = (3.5/2)/(tan(arcsin((5.96/2)/3.5))) = 1.07798

Therefore, the two locations along the line where there is a destructive are 1.07798 m along the line before and after the two in-phase sources.

The girl's reference frame must be moving with the same speed as the plane.

If an observer is stationary and he watches a car moving he can observe that the car has a momentum and is moving with certain speed. But if the observer is in the car or moving with same speed, the car does not appear to move away form the observer. Likewise, two observers moving with different speed will have different observation about the same car.

Similarly, if the girl describes the plane is not moving that means either she is in the plane or moving with the same speed along with the plane.

Learn more about frame of reference:

https://brainly.com/question/20897534

Answer:

a/ oscillating charges

Answer:

Explanation:

The more aerodynamic a vehicle is the less wind resistance there is meaning there is better gas mileage because it dont have to push so hard against wind and it also helps with the eye appeal

Answer:

Specific heat capacity of silver metal = 0.08184 J/kg°C

Explanation:

Given:

Mass of silver metal = 32 kg

Change in thermal energy = 55 J

Change in temperature = 21°C

Find:

Specific heat capacity of silver metal

Computation:

Using Specific heat capacity formula

C = ΔE / mΔT

where;

C = Specific heat capacity

ΔE = Change in thermal energy

m = Mass

ΔT = Change in temperature

C = (55) / (32)(21)

Specific heat capacity of silver metal = 55 / 672

Specific heat capacity of silver metal = 0.08184 J/kg°C

Answer:

1. True - gravity affects the y motion

2. False - x-coordinates affect the horizontal motion

3. y because gravity affects motion in  the y-direction

4. x generally no external forces act in the x direction and hence no acceleration in the x direction

Answer:

terrestrial ecosystem and pond ecosystem is an aquatic ecosytem, hence both their abiotic and biotic components would be different.

Explanation:

Answer:

D.It stays the same as the object falls.

Answer:

0.35

Explanation:

ur dogwater

Answer:

sun, jupiter, earth, moon

Explanation:

how big they are

Answer:

sun, jupiter, earth, moon. sun

Explanation:

The sun would have the biggest gravity because it is the massiest.

Based on the mass of each planet, this is the correct answer.

Answer:

The formula for calculating Density is:

= Mass / Volume

From this formula, we can say that the relationship between Mass and Density is a direct one. In other words, if mass is increasing - all else being equal - then density will increase as well.

If mass however was decreasing, density would have to decrease as well.

For example, assume 3 bricks have masses of 5kg, 10kg and 15kg. Also assume that the bricks all have the same volume of 5 m³.

Density of 5kg brick = 5 / 5 = 1 kg/m³

Density of 10kg brick = 10 / 5 = 2kg / m³

Density of 15kg brick = 15 / 5 = 3 kg /m³

Notice how density increases as mass increases and decreases when mass decreases.

Answer:

* If there is no friction  U = 0,  K = 200 J

* If there is friction    U = 0,  K = 200 - W

Explanation:

For this exercise we must make an assumption.

* If there is no friction

   The energy of the system is conserved therefore the energy is transformed.

The potential energy is

      U = m g h

at the bottom of the road there is no height therefore

      U = 0

and all the energy has been transformed into kinetic energy

       K = 200 J

* If there is friction, which can come from the internal friction of the car, the friction force between the car and the floor, etc.

in this case there is a loss of energy due to the work of non-conservative forces (friction).

The potential energy at the bottom of the path is hedron because there is no height U = 0

The kinetic energy is

             K = U -W

             K = 200 - W

where W is the work of the friction force.

Answer:

a) 7.65 m

b) 14.71s

C) 15.43 m/s

Explanation:

a) s = ut + 0.5at²

s= ?

u = 0

t = 3s

a = 1.7 m/s²

s = 0 + 0.5 × 1.7 × 3²

s = 7.65 m

b) v = u + at

v = 25m/s

u = 0 m/s

a = 1.7 m/s ²

t = ?

v=at

t = v / a

t = 25 / 1.7

t = 14.71s

c) v² = u² + 2as

s = 70m

a = 1.7m/s²

u = 0 m/s

v = ?

v² =  2as

v = √238

v = 15.43 m/s

Answer:

T = 0.96 seconds

Explanation:

Given that,

The speed of wave, v = 2.6 m/s

The distance between wave crests, [tex]\lambda=2.5\ m[/tex]

We need to find the period of the wave motion. Let T be the period. So,

[tex]v=\dfrac{\lambda}{T}\\\\T=\dfrac{\lambda}{v}\\\\T=\dfrac{2.5}{2.6}\\\\T=0.96\ s[/tex]

So, the period of the wave motion is equal to 0.96 seconds.

The period of the wave motion is 0.96 seconds.  Using the formula:

v = λ / T

where v is the velocity of the wave, λ is the wavelength and T is the period of the wave.

Given that v = 2.60 m/s, λ = 2.5 m, hence:

2.6 = 2.5/T

T = 0.96 s

The period of the wave motion is 0.96 seconds.

Find out more on period at: https://brainly.com/question/10843932

Answer: 2- doubled

Explanation:

Given

for m=0.02 kg, v=5 m/s, kinetic energy is 0.25 J

for same velocity and double mass i.e.

m=0.04 kg, v=5 m/s, kinetic energy is 0.50 J

same is with

m=0.08 kg, v=5 m/s , kinetic energy is double to [tex]2\times 0.5=1\ J[/tex]

So, on doubling the mass, kinetic energy is doubled

Answer:They have 10

Explanation:

Answer:

opposite charges.

1. two Styrofoam.

2. pieces of glitter.

3. balloon moves away from glass rod

like charges

1. two sweaters cling

2. balloons stick to wall

3. stream of water bends

Answer:

1. Amplitude.

2. Rarefaction.

3. Wavelength.

4. Compression.

Explanation:

Sound are mechanical waves that are highly dependent on matter for their propagation and transmission. Some of the properties of sound waves as it travels through a medium such as solid, liquid and gas includes the following;

1. Amplitude: the density of the medium's particles at the compressions of the waves.

2. Rarefaction: the part of a wave where the particles of the medium are farther apart. This ultimately implies that, it is part of a longitudinal wave in which the particles that make up the matter for the movement of the wave are separated by a greater distance.

3. Wavelength: the distance between compressions or rarefactions i.e the distance between two successive compressions or refractions.

4. Compression: the part of a wave where the particles of the medium are closer together. This ultimately implies that, it is part of a longitudinal wave in which the particles that make up the matter for the movement of the wave are closer together.

Answer:

here is the answers .......

Answer:

[tex]\dfrac{dE}{dt} \approx 2.261 \overline {36} \times 10^{12} \ V/ms[/tex]

Explanation:

The parameters given in the question are;

The magnitude of the displacement current density between the plates of a parallel-plate capacitor, J = 19.9 A/m²

We have;

[tex]i_d = \epsilon _0 \times \dfrac{d \Phi_E}{dt} =\epsilon _0 \times A \times \dfrac{d E}{dt}[/tex]

Therefore;

[tex]\therefore \dfrac{dE}{dt} =\dfrac{i_d}{\epsilon _0 \cdot A} =\dfrac{J}{\epsilon_0} = \dfrac{19.9}{8.8 \times 10^{-12}} \approx 2.261 \overline {36} \times 10^{12}[/tex]

Therefore;

[tex]\therefore \dfrac{dE}{dt} \approx 2.261 \overline {36} \times 10^{12} \ V/ms[/tex]

Answer: (d)

Explanation:

Given

Mass of the first ram [tex]m_1=49\ kg[/tex]

The velocity of this ram is [tex]v_1=-7\ m/s[/tex]

Mass of the second ram [tex]m_2=52\ kg[/tex]

The velocity of this ram [tex]v_2=9\ m/s[/tex]

They combined after the collision

Conserving the momentum

[tex]\Rightarrow m_1v_1+m_2v_2=(m_1+m_2)v\\\Rightarrow 49\times (-7)+52\times (9)=(52+49)v\\\Rightarrow v=\dfrac{125}{101}\ m/s \quad[\text{east}][/tex]

Momentum after the collision will be

[tex]\Rightarrow 101\times \dfrac{125}{101}=125\ kg-m/s\ \text{East}[/tex]

Therefore, option (d) is correct

Answer: 28.4

Explanation:

F=MA

F=(7.1)(4)

F= 28.4 N

Answer:

convex

Explanation:

hope you have a good day!