What’s the correct answer

At what time of day would you expect the New Moon to rise?

abruzzese [7]

Answer:

At what time of day would you expect the New Moon to rise?

A) Midnight

B) Sunset

C) Noon

D) Sunrise

An HR diagram is a plot of:

A) Luminosity versus apparent magnitude.

B) Absolute magnitude versus luminosity.

C) Absolute magnitude versus surface temperature.

D)Apparent magnitude versus color index.

E) Color index versus surface temperature.

What is the most easily visible manifestation of the Earth's magnetic field?

A) The Van Allen radiation belts

B) The magnetopause

C) The aurorae

D) There is no easily visible manifestation of the Earth's magnetic field.

For a lunar eclipse (the moon is obscured from view), which phase is necessary?

A) third quarter

B) new moon

C) first quarter

D) full moon

4 0

3 years ago

The coefficients of friction between the 20-kg crate and the inclined surface are µ,8 = 0.24 and J.lk = 0.22. If the crate start

Yanka [14]

Answer:5.60 m/s

Explanation:

Given

Coefficient of static friction $\mu _s=0.24$

Coefficient of kinetic friction $\mu _k=0.22$

mass of crate $m=20\ kg$

Force applied $F=200\ N$

maximum static Friction $F_s=\mu _sN$

$N=mg$

$F_s=0.24\times 20\times 9.8$

$F_s=47.04\ N$

thus applied force is greater than Static friction therefore kinetic friction will come into play

$F_k=\mu _kN$

$F_k=0.22\times 20\times 9.8=43.12\ N$

net Force on crate $F-F_k=ma$

$a=\frac{200-43.12}{20}=7.84\ m/s^2$

Magnitude of velocity can be obtained by using

$v^2-u^2=2as$

where v=final velocity

u=initial velocity

a=acceleration

s=displacement

here initial velocity is zero as crate start from rest

$v^2-0=2\times 7.84\times 2$

$v=\sqrt{31.37}$

$v=5.60\ m/s$

7 0

4 years ago

The term

stellarik [79]

Answer:

C. simple

The term that refers to the fact that an epithelial tissue has only one layer of cells is simple epithelial.

Explanation:

Epithelial tissues are thin tissues that cover all the exposed surfaces of our body.

Based on the number of cell layers, the simplest classification of epithelial tissue is:

a. Simple Epithelial Tissue

When the epithelial tissue consists of a single layer of cells, it is called simple epithelial tissue.

b. Stratified Epithelial Tissue

When there are two or more layers of cells in epithelial tissue, it is called stratified epithelial tissue.

Cuboidal epithelial is also a type of simple epithelial tissue.

Pseudostratified is another type of epithelial tissue which falls in neither simple nor stratified category. They consists of a single layer but the positioning suggests it is stratified.

There are 3 types of epithelial tissues based on their shape:

a. Squamos epithelial tissue

b. Cuboidal epithelial tissue

c. Columnar epithelial tissue

5 0

3 years ago

Amit has found a rock in his backyard and would like to measure its mass, volume, and density. What tools can he use to perform

Simora [160]

A. Should be the correct answer:) hope this helped! :)

7 0

3 years ago

two tugboats pull a disabled supertanker. each tug exerts a constant force of 2.20×106 n , one at an angle 19.0 ∘ west of north,

asambeis [7]

The amount of work the two tugboats completed on the supertanker W = 3.12 × 10^9 joules .

Work is a physics term used to describe the energy transfer that takes place when an object is moved over a distance by an external force, at least some . The component of the force acting along the path multiplied by the length of the path can be used to calculate work if the force is constant. Mathematically, this idea is expressed as W = fd, where W is the work and f is the force multiplied by d, the distance. Work is completed when the force is applied at an angle of with respect to the displacement. Performing work on a body involves moving it in its entirety from one location to another as well as other methods. However, the work is thought to be negative if the applied force is in opposition to the item's motion, indicating that energy is being pulled away from the object

Learn more about work here:

brainly.com/question/1374468

#SPJ4

7 0

1 year ago