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3 years ago

A material that can easily flow is called a

Physics

2 answers:

Blababa [14]3 years ago

6 0

Answer:

a. fluid

Explanation:

A fluid is any body that has the property to flow, and lacks rigidity and elasticity, and consequently yields immediately to any force tending to alter its shape and thus adopting the shape of its container. Fluids can be liquids or gases according to the different intensity of the cohesion forces existing between their molecules. In liquids, intermolecular forces allow particles to move freely, although they maintain latent bonds that cause substances in this state to have a constant or fixed volume. Gases, by contrast, consist of well-separated moving particles that collide with each other and try to disperse, such that the gases have no defined shape or volume.

murzikaleks [220]3 years ago

3 0

A material that can easily flow is called a...

A. Fluid.

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A child’s toy launches a model parachutist of mass 0.40 kg vertically upwards. The model parachutist reaches a maximum height of

melisa1 [442]

Answer:

(a) =34.0J

(b) = 13.038m/s

Explanation:

(a) mass (m) =0.45kg

Height(h) =8.5m

Gravity (g) =10m/s^2

But P. E (Potential Energy) = mass × gravity × height

P. E = 0.45×10×8.5

P. E = 34.0J

(b) using v^2=u^2 - 2gs

Where v = final velocity

u= initial velocity

g = gravity

s =distance

But at maximum height <u>v</u><u> </u>=0

0^2= u^2 - 2gs

Transpose u^2 we have

u^2 = 2gs

u^2 = 2×10×8.5

u^2 = 170

u = square root of 170

u = 13.038m/s

4 0

3 years ago

A plane, diving with constant speed at an angle of 53.0° with the vertical, releases a projectile at an altitude of730 m. The pr

Alex777 [14]

Answer:

A) V=198.75m/s

B) 793.7mts

C) Vx=158.72m/s

D) Vy=-168.71m/s

Explanation:

In order to answer the first question we need to calculate the initial speed of the projectile because it's the same speed of the plane.

$Vfy^2=Voy^2+2*a*d\\Vfy=0\\Voy=\sqrt{-2*(-9.8)*730} \\Voy=119.61m/s$

The velocity has to be negative because is going down so, Voy=-119.61m/s

now that we have the Y component of velocity we can get the plane velocity by:

the angle with the horizontal is ∝=-90+53=-37

$Voy=V*cos(\alpha )\\V=\frac{Voy}{sin(\-53})\\V=198.75m/s$

Now that we have the Initial velocity we can calculate the horizontal displacement:

$d=V*cos(\alpha )*t\\d=198.75*cos(-37)*5\\d=793.7mts$

Because the horizontal velocity remains the same, it is given by:

$Vx=V*cos(-37)=158.72m/s$

In order the calculate the Y componet we will use the next formula:

$Vfy=Vo+a*t\\Vfy=-119.71+(-9.8)*5\\Vfy=-168.71m/s$

6 0

3 years ago

Based electromagnetic spectrum? on its surface temperature of 6,000 K, most photons that leave the Sun's surface lie in which re

masha68 [24]

Answer:

option C

Explanation:

given,

Temperature of the surface = 6000 K

using formula to calculate $\lambda_{max}$

$\lambda_{max} = \dfrac{0.0029\ K.m}{T}$

$\lambda_{max}$ is the maximum wavelength emission in meter.

T is the temperature in kelvin.

$\lambda_{max} = \dfrac{0.0029}{6000}$

$\lambda_{max} = 4.8333 \times 10^{-7}$

$\lambda_{max} = 4833\ A^0$

the wavelength is in Visible range

The Correct answer is option C

7 0

3 years ago

Blood has a density of 1.06 She donates 473.176 mL how much mass does she donate

Degger [83]

Density = mass / volume

So..

1.06 = mass / 473.176

Multiply 473.176 over to the other side leading to

(1.06)(473.176) = mass

mass = 501.56656 --> 501.57

3 0

3 years ago

Read 2 more answers

What is the slope of the line plotted below?

Naddika [18.5K]

Answer:

To find the slope, we need to have co-ordinates of atleast 2 points lying on the line.

In this case, the 2 points are

(-3,1) and (2,-2)

To find the gradient we put in the following rule :

Rise / Run = (y2 - y1) / (x2-x1) = (-2-1) / (2+3) = -3 /5

Explanation:

3 0

2 years ago