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3 years ago

What physical property makes the red light different from blue light, or radio waves different from microwaves?

Physics

2 answers:

inna [77]3 years ago

4 0

Only their wavelength does.

Blue light waves have only roughly half the wavelength of red light waves, and the so-called "microwaves" are the radio waves with the shortest wavelengths.

Nataly [62]3 years ago

4 0

Answer:

electromagnetic spectrum

Explanation:

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An object is dropped from a height of 50 meters. Ignoring air resistance, how long doe take to hit the ground?

Arte-miy333 [17]

here given that object is dropped from height h = 50 m

So here we can say

initial speed is ZERO

acceleration is due to gravity

now in order to find time to reach the ground we can use kinematics

$y = v_i*t + \frac{1}{2}at^2$

now plug in all values in it

$50 = 0 + \frac{1}{2} \times 9.8(t^2)$

$t = 3.2 s$

so it will take 3.2 s to reach the ground

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3 years ago

How long does it take a rocket traveling at a constant velocity of 100 m/s to climb from 200m to 1200m

neonofarm [45]

Answer:

10 seconds

Explanation:

you multiply 100 by 10 in order to get 1000m

you add 200m to 1000m to get to the maximum of 1200m

since you travel at 100 per second, it took 10 seconds

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3 years ago

Machines can be made more efficient by reducing ___________________.

Aleks04 [339]

Answer:

friction

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3 0

3 years ago

Please solve the Problem.

babymother [125]

From the graph, the average acceleration between 5.0 s and 8.0 s is 2.33 ms^2.

<h3>What is acceleration?</h3>

The term acceleration has to do with the change in velocity with time. We can see that the graph shown is a graph of velocity against time, the slope of the graph is the acceleration.

Thus, the average acceleration between 5.0 s and 8.0 s can be read off from the graph as 20 m/s - 13m//8.0 s - 5.0 s = 2.33 ms^2.

Learn more about acceleration:brainly.com/question/12550364

#SPJ1

8 0

2 years ago

A bucket of water with total mass 23 kg is attached to a rope, which in turn is wound around a 0.050-m radius pulley at the top

adoni [48]

Answer:

$I = 0.083 kg m^2$

Explanation:

Mass of the bucket, m = 23 kg

Radius of the pulley, r = 0.050 m

The bucket is released from rest, u = 0 m/s

The time taken to fall, t = 2 s

Speed, v = 8.0 m/s

Moment of Inertia of the pulley, I = ?

Using the equation of motion:

v = u + at

8 = 0 + 2a

a = 8/2

a = 4 m/s²

The relationship between the linear and angular accelerations is given by the equation:

$a = \alpha r$

Angular acceleration, $\alpha = a/r$

$\alpha = 4/0.050\\\alpha = 80 rad/s^2$

Since the bucket is falling, it can be modeled by the equation:

mg - T = ma

T = mg - ma = m(g-a)

T = 23(9.8 - 4)

The tension, T = 133.4 N

The equation for the pulley can be modeled by:

$T* r = I * \alpha\\133.4 * 0.050 = I * 80\\6.67 = 80 I\\I = 6.67/80\\I = 0.083 kg m^2$

6 0

3 years ago

What physical property makes the red light different from blue light, or radio waves different from microwaves?​

What physical property makes the red light different from blue light, or radio waves different from microwaves?