1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dvinal [7]
3 years ago
14

Ultraviolet rays from the sun are able to reach Earth's surface because-

Physics
1 answer:
Leona [35]3 years ago
7 0
The answer to this is C.
You might be interested in
Assuming the density of the wine to be 1.0 g/ml, what caloric content does the alcohol (ethanol) in a 6-oz glass of wine (177 ml
viktelen [127]

mass = 177 x 1.0 g/mL= 177 g mass ethanol = 177 x 10.6/100 = 18.8 g moles = 18.8 g/46.069 g/mol = 0.408 1367 kJ/mol x 0.408 mol= 557.9 kJ

4 0
3 years ago
Read 2 more answers
Science please help!<br>​
IceJOKER [234]

Explanation:

spherical lenses which are curved outward are CONVEX lenses

7 0
3 years ago
Which sentence best explains the law of conservation of mass as applied to
drek231 [11]

Answer:

A. The amount of mass changes only slightly during a chemical

reaction.

3 0
2 years ago
A 30 kg student drops down from the monkey bars. The acceleration due to gravity is -9.8 m/s^2. Neglecting air drag, what is the
Sholpan [36]

The net force on the student is A) -294 N

Explanation:

Neglecting air resistance, there is only one force acting on the student: the force of gravity, which is given by

F=mg

where

m is the mass of the student

g is the acceleration of gravity

In this problem, we have:

m = 30 kg is the mass of the student

g=-9.8 m/s^2 is the acceleration of gravity, where the negative sign means the direction is downward

Substituting, we find the force of gravity on the student:

F=(30)(-9.8)=-294 N

And since this is the only force acting on the student, it is also the net force on him.

Learn more about gravitational force:

brainly.com/question/1724648

brainly.com/question/12785992

#LearnwithBrainly

8 0
3 years ago
A sample of an ideal gas has a volume of 2.37 L at 2.80×102 K and 1.15 atm. Calculate the pressure when the volume is 1.68 L and
iogann1982 [59]

Answer:

p_2 = 1.76 atm

Explanation:

given data:

v_1 = 2.37 L

v_2 = 1.68 L

p_1 =1.15 atm

p_2 = ?

t_1 = 280 K

t_2 = 304 K

from Gas Law Equation

, WE HAVE

\frac{p_1 v_1}{t_1} =\frac{p_2 v_2}{t_2}

Putting the values

\frac{1.15*2.37}{280}  =\frac{p_2 *1.68}{304}

9.733*10^{-3} = \frac{p_2 *1.68}{304}

9.733*10^{-3}*304 = p_2*1.68

\frac{9.733*10^{-3}*304}{1.68} =p_2

p_2= 1.76 atm

7 0
3 years ago
Other questions:
  • Harry is reading an online summary of the law of reflection. The site states that after light hits a mirror, the angle of reflec
    10·2 answers
  • The distance between the centers of the wheels of a motorcycle is 156 cm. The center of mass of the motorcycle, including the ri
    13·1 answer
  • How are force, mass and acceleration related?
    15·1 answer
  • If the decomposition of hydrogen peroxide is a first order reaction and it takes 20.0 minutes for the initial concentration to f
    6·1 answer
  • how many atoms of oxygen are there in one molecule of cardon dioxide , if the chemical formula is CO2
    6·2 answers
  • 2. If the ball has a velocity of 2.3 m/s, how long does it take it to go 1.1 m?<br> s
    5·1 answer
  • Sound wave A is moving through a medium that is decreasing temperature.
    14·2 answers
  • Ans it fastly <br>i need the ans fastly ​<br>NO SPAM
    11·1 answer
  • 6.) What force would evetually cause the ball to come to a stop after leaving the ramp​
    5·1 answer
  • D. A bargain hunter purchases a "gold" crown at a flea market. After she gets home, she hangs it from a scale and finds its weig
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!