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
Nat2105 [25]
3 years ago
7

One clue we can observe that means a chemical reaction has occurred is the formation of light. What is one chemical reaction you

can think of that causes light?
Physics
1 answer:
dimaraw [331]3 years ago
8 0

Answer:

There are five signs of a chemical change:

Color Change.

Production of an odor.

Change of Temperature.

Evolution of a gas (formation of bubbles)

Precipitate (formation of a solid)

Explanation:

I just went ahead and gave you the five signs of chemical change hoped it helped

You might be interested in
Humans protect themselves from natural disasters by all of the following except
jeyben [28]
I'm pretty sure it's sunscreen
4 0
3 years ago
The mass of the skier including his equipment is 75 kg in the ski race, the total vertical change in height is 880m
Bogdan [553]
75 percent off of water and please water the light water and water water and then go back and please water pollution please 880m
8 0
3 years ago
What is the maximum value the string tension can have before the can slips? The coefficient of static friction between the can a
Naya [18.7K]

Answer:

T= 38.38 N

Explanation:

Here

mass of can = m = 3 kg

g= 9.8 m/sec2

angle θ = 40°

From figure we see the vertical and horizontal component of tension force T

If the can is to slip - then horizontal component of tension force should become equal to force of friction.

First we find force of friction

Fs= μ R

where

μ = 0.76

R = weight of can = mg = 3 × 9.8 = 29.4 N

Now horizontal component of tension

Tx= T cos 40 = T× 0.7660  N

==>T× 0.7660 = 29.4

==> T= 38.38 N

8 0
3 years ago
How does friction affect the distance of an object?
stiv31 [10]
It slows the object down so it cannot move well and evetually the object cannot be pushed and farther
4 0
3 years ago
The first and second coils have the same length, and the third and fourth coils have the same length. They differ only in the cr
tatyana61 [14]

Answer:

The ratio of the resistances of second coil to the first coil is the ratio of square of radius of the first coil to the square of radius of  second coil.

And

The ratio of the resistances of fourth coil to the third coil is the ratio of square of radius of the third coil to the square of radius of  fourth coil.

Explanation:

The resistance of the coil is directly proportional to the length of the coil and inversely proportional to the area of coil and hence inversely proportional to the square of radius of the coil.

So, the ratio of the resistances of second coil to the first coil is the ratio of square of radius of the first coil to the square of radius of  second coil.

And

The ratio of the resistances of fourth coil to the third coil is the ratio of square of radius of the third coil to the square of radius of  fourth coil.

8 0
3 years ago
Other questions:
  • Why is the escape speed for a spacecraft independent of the spacecraft's mass?
    8·1 answer
  • Which statement best describes the isothermal process? A. the temperature remains constant B. the temperature increases at a con
    5·2 answers
  • Approximately what percentage of Earth’s radius is represented by the crust?
    7·1 answer
  • An object is pulled with two forces, 10 N northward and 15 N southward. The direction of the net force is to the An object is pu
    9·1 answer
  • A boy is exerting a force of 70 N at a 50-degree angle on a lawn mower. He is accelerating at 1.8 m/s2. Round the answers to the
    8·1 answer
  • Changing the direction of current will or will not affect the strength of an electromagnet
    15·2 answers
  • What is the change in internal energy if 70 J of heat is added to a system and
    8·1 answer
  • A projectile is launched straight upward at 50 m/s. Neglecting air resistance its speed upon returning to its starting point is:
    10·1 answer
  • A bird lands on a bird feeder which is connected to a spring. The mass of the bird is exactly the same as the mass of the bird f
    11·1 answer
  • An ice-skater with a mass of 80kg is holding a bowling ball with a mass of 8 kg. Suppose that the skater tosses the bowling ball
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!