2 years ago

Where does the energy in an unburned match come from?

1 answer:

5 0

A matchstick has a lot of chemical energy stored in it. When the match is struck, it burns and the chemical energy in it produces heat energy and light energy.

You might be interested in

The properties of metals depend mainly on the number and arrangement of neutrons True False

Sergeeva-Olga [200]

Answer:

False

Explanation:

Electrons

7 0

2 years ago

Distance = 6 km south 60 minutes What was the average velocity

blsea [12.9K]

v = x/t

v = average velocity, x = displacement, t = elapsed time

Given values:

x = 6km south, t = 60min

Plug in and solve for v:

v = 6/60

v = 0.1km/min south

3 0

2 years ago

Read 2 more answers

Rahul sits in a chair reading a book. Which force is equal to the force Rahul exerts on Earth?

Mademuasel [1]

The first opiton is the answer A)Rahul’s weight

8 0

2 years ago

Read 2 more answers

The potential difference in a simple circuit is 2 v and the resistance is 2 ω . what current flows in the circuit? answer in uni

balandron [24]

Hey

Potential Difference given is : 2V

Resistance is : 2 ohms

By Ohm's Law, one can easily utilize the relation :

$v = ir$

Where, { v , i , r } are the potential difference, current and Resistance Respectively.

Hence,
$i = \frac{v}{r} = \frac{2}{2} = 1a$

Hence, the Current is 1 Ampere

7 0

2 years ago

PtichkaEL [24]

Hi I need help with some questions I have on a quiz / test

4 0

2 years ago