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
Artyom0805 [142]
3 years ago
12

PLEASE HELP I need the answer to this question ASAP

Physics
2 answers:
cestrela7 [59]3 years ago
7 0

Answer:

answer is A

Explanation:

hope this helps!

Simora [160]3 years ago
7 0

Answer:

ray 2 is the refracted ray

Explanation:

ray 1 and 2 are balanced because if there is a mirror under the ray  then the ray would be balance with the source of the ray. p.s only did this for brainliest

You might be interested in
Alan and Monica tested how fertilizer X affected the growth of a plant. Alan and Monica put 100 grams of fertilizer X in pot 1.
BARSIC [14]

Answer:

D.

a control group

Explanation:

In a scientific experiment such as the one above, there is an experimental group and a control group. The experimental group is the group that receives the treatment while the control group does not receive any treatment. The control group helps the researcher to observe if the treatment had any significant effect.

In this case, it will help Alan and Monica to determine if fertilizer X actually had an effect on the plant. Therefore, the pot with o grams of fertilizer in it is the control group.

7 0
3 years ago
Why is the scientific method described as cyclic?
Troyanec [42]
Because the scientific method can go around in a circle as many times as neccisary to get the results you need
8 0
3 years ago
Write the formula of mechanical advantage​
Zanzabum

Answer:

the formula of mechanical advantage is

MA = load / effort

VR = effort distance / load distance

hope it is helpful to you

7 0
3 years ago
An object is 2.0 m in front of a plane mirror. Its image is:?
maria [59]
Planes don’t have mirrors
6 0
4 years ago
A uniform stick 1.5 m long with a total mass of 250 g is pivoted at its center. A 3.3-g bullet is shot through the stick midway
Andru [333]

Answer:

<em>63.44 rad/s</em>

<em></em>

Explanation:

mass of bullet = 3.3 g = 0.0033 kg

initial velocity of bullet v_{1} = 250 m/s

final velocity of bullet v_{2} = 140 m/s

loss of kinetic energy of the bullet = \frac{1}{2}m(v^{2} _{1} - v^{2} _{2})

==> \frac{1}{2}*0.0033*(250^{2}  - 140^{2} ) = 70.785 J

this energy is given to the stick

The stick has mass = 250 g =0.25 kg

its kinetic energy = 70.785 J

from

KE = \frac{1}{2} mv^{2}

70.785 = \frac{1}{2}*0.25*v^{2}

566.28 = v^{2}

v= \sqrt{566.28} = 23.79 m/s

the stick is 1.5 m long

this energy is impacted midway between the pivot and one end of the stick, which leaves it with a radius of 1.5/4 = 0.375 m

The angular speed will be

Ω = v/r = 23.79/0.375 =<em> 63.44 rad/s</em>

5 0
3 years ago
Other questions:
  • If the force of an object doubles and the mass also doubles, by what factor does the acceleration change?
    6·1 answer
  • Hansel pushes a 2 lb. box 5 feet in 20 seconds. How much work has he done?
    12·1 answer
  • What is the difference between sodium atom and a sodium ion
    5·1 answer
  • A cylindrical concrete (r = 1495 kg/m3; Cp = 880 J/kg*K; k = 1.5 W/m*K) beam is exposed to a hot gas flow at 500 °C. The convect
    12·1 answer
  • An unknown number of identical light bulbs are connected to a 15 V battery in parallel. The current through the battery is 2 A.
    6·1 answer
  • What are the benefits when you engage in physical fitness?​
    6·2 answers
  • NEED HELP PLEASE 15 POINTS PLEASEE NEED HELP
    13·2 answers
  • Which bolt would experience the greater torque?<br> Α.) Α<br> b.) B <br> c.) both are the same
    8·2 answers
  • B. A bird in air looks a fish vertically below it inside the water from a distance 5m from surface of water and fish lies at dep
    10·1 answer
  • Can anyone pls answer this plss plss I'm not sure which one it is​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!