What type of reaction occurs when you strike a match?

Answers

Answer 1

Answer: The type of reaction is combustion

Answer 2

Answer:
I'm probably wrong, but friction?

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If john is traveling at 8 feet per minute east for 2 hours what is his displacement
How can you calculate distance when given power, time, and mass?Power used to lift crate is 3490, mass of crate is 425 kg, time is 3 seconds. How far was the crate lifted?
If 35 J of work was performed in 70 seconds, how much power was used to do this task?
what is the relief in an area were the highest point is 1,200 m above sea level and the lowest point is 200 m above sea level?

In order for a color to be seen by a human, the light must be what?

Answers

The light must be within a certain, rather narrow, range
of wavelength/frequency, and it must enter his eye.

What type of rock is the Haystack rock (igneous, Metamorphic, or Sedimentary)

Answers

The Haystack rock is monolith and is composed of basalt and formed by lava so it's igneous rock.

I hope I helped :D

I think it's an igneous rock

What happens when you increase the amplitude of a sound? it makes the sound travel faster

it makes the sound louder

it increases the wavelength of the sound

it increases the frequency of the sound

Answers

Answer:

It increases the wavelength of the sound and gets softer if the amplitude decreases

Explanation:

And can i have brainlist??

it makes the sound louder louder because the intensity of the sound increases

Wright true or false:1.A baseball has more momentum than a tennis ball traveling at the same speed.
2. A light ball has more inertia than a heavy ball
3. The less momentum a bowling ball has, the easier it is for that ball to knock down pins.
4. A heavy bowling ball is easy to get rolling because of its inertia.

Answers

true false false true

Final answer:

A baseball has more momentum than a tennis ball traveling at the same speed. A light ball has less inertia than a heavy ball. The less momentum a bowling ball has, the easier it is for that ball to knock down pins. A heavy bowling ball is easy to get rolling because of its inertia.

Explanation:

1. True. Momentum is the product of an object's mass and velocity. Since a baseball has more mass than a tennis ball while traveling at the same speed, it has more momentum.

2. False. Inertia is the resistance of an object to changes in its motion. It depends on an object's mass. So, a heavy ball has more inertia than a light ball.

3. False. The more momentum a bowling ball has, the easier it is for it to knock down pins. Momentum is directly proportional to the force at which the ball hits the pins.

4. True. Inertia is the tendency of an object to resist changes in its motion. A heavy bowling ball has more inertia, making it easier to get rolling.

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Which forces are interacting when a bowling ball is pick up ?a.gravity
b.inertia
c.apull
d.all of these

Answers

D all of the above. While the ball is being lifted, gravity is still pulling down and it is heavy so it is harder to lift.

An airplane is moving at 350 km/hr. If a bomb isdropped from the airplane at 1.5 km, (a) with what
velocity does the bomb strike the earth? (b) How
long does it take the bomb to fall? (c) What is the
bomb's range?

Answers

Answers:

a) -171.402 m/s

b) 17.49 s

c) 1700.99 m

Explanation:

We can solve this problem with the following equations:

$y=y_(o)+V_(oy)t-(1)/(2)gt^(2)$ (1)

$x=V_(ox)t$ (2)

$V_(f)=V_(oy)-gt$ (3)

Where:

$y=0 m$ is the bomb's final jeight

$y_(o)=1.5 km (1000 m)/(1 km)=1500 m$ is the bomb'e initial height

$V_(oy)=0 m/s$ is the bomb's initial vertical velocity, since the airplane was moving horizontally

$t$ is the time

$g=9.8 m/s^(2)$ is the acceleration due gravity

$x$ is the bomb's range

$V_(ox)=350 (km)/(h) (1000 m)/(1 km) (1 h)/(3600 s)=97.22 m/s$ is the bomb's initial horizontal velocity

$V_(f)$ is the bomb's fina velocity

Knowing this, let's begin with the answers:

b) Time

With the conditions given above, equation (1) is now written as:

$y_(o)=(1)/(2)gt^(2)$ (4)

Isolating $t$ :

$t=\sqrt{(2 y_(o))/(g)}$ (5)

$t=\sqrt{(2 (1500 m))/(9.8 m/s^(2))}$ (6)

$t=17.49 s$ (7)

a) Final velocity

Since $V_(oy)=0 m/s$ , equation (3) is written as:

$V_(f)=-gt$ (8)

$V_(f)=-(97.22)(17.49 s)$ (9)

$V_(f)=-171.402 m/s$ (10) The negative sign ony indicates the direction is downwards

c) Range

Substituting (7) in (2):

$x=(97.22 m/s)(17.49 s)$ (11)

$x=1700.99 m$ (12)

Final answer:

The bomb hits the earth at approximately 540.3 km/hr, it takes approximately 17.5 seconds for the bomb to hit the ground, and the bomb's range is approximately 1.36km.

Explanation:

To answer these questions, we're going to use the principles of kinematics that involve motion in a straight line with constant acceleration (that is the acceleration due to gravity in this case). (a) The velocity of the bomb when it strikes the earth can be calculated using the kinematic equation v = u + gt, where u is the initial velocity (0 m/s since the bomb was dropped, not thrown), g is the acceleration due to gravity (approximately -9.8 m/s²), and t is the time. However, we do not know the time yet, so we will use the equation v = sqrt(2×g×h), where h is the height (1500m), and this gives us approximately 540.3 km/hr. (b) The time it takes for the bomb to fall can be calculated using t = sqrt((2×h)/g) which gives approximately 17.5 seconds. (c) The range of the bomb is the horizontal distance it travels, which is the velocity of the plane multiplied by the time it takes for the bomb to hit the ground, or 350 km/hr × 17.5/3600 hr = approximately 1.36km.

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