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zhannawk [14.2K]
3 years ago
15

In vacuum, red light travels at a greater speed than blue light does. a. true b. false?

Physics
1 answer:
3241004551 [841]3 years ago
8 0
B)False.......they travels at the same speed
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This table shows the acceleration due to gravity on four planets. Planet Gravity (m/s2) Earth 9.8 Mercury 3.7 Neptune 11.2 Uranu
son4ous [18]

Answer:

\Large \boxed{\mathrm{Mercury, \ Uranus, \ Earth, \ Neptune}}

Explanation:

Earth ⇒ 9.8 m/s²

Mercury ⇒ 3.7 m/s²

Neptune ⇒ 11.2 m/s²

Uranus ⇒ 8.9 m/s²

W=m \times g

\sf {Weight=mass \times acceleration \ due \ to \ gravity}

The weight of a person can differ on different planets, but the mass stays the same. The greater the acceleration due to gravity, the greater the weight.

Arranging the planets in increasing order based on a person’s weight on the planet:

Mercury, Uranus, Earth, Neptune

6 0
3 years ago
Read 2 more answers
What can help a scientist identify any object in a group of objects?
NNADVOKAT [17]

Answer:The object characteristics

Explanation:the objects characteristics

4 0
3 years ago
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A sodium has an atomic number of 11 and the atomic mass of 23. Determine the its proton, electrons, and neutrons
ioda

The mass number of an element tells us the number of protons AND neutrons in an atom (the two particles that have a measurable mass). Sodium has a mass number of 23amu. Since sodium has 11 protons, the number of neutrons must be 23 – 11 = 12 neutrons.

7 0
3 years ago
Marcus is on a train that travels 20 and takes 5 seconds to slow to 10 .
Vera_Pavlovna [14]

Answer:

-2

Explanation:

v0=20

v=10

t=5

a=(v-v0)/t=(10-20)/5=-2

6 0
3 years ago
A 1700kg rhino charges at a speed of 50.0km/h. what average force is needed to bring the rhino to a stop in 0.50s?
uranmaximum [27]
From 50km/h to 0km/h in 0.5s we need next acceleration:
First we convert km/h in m/s:
50km/h = 50*1000/3600=13.8888 m/s
a = v/t = 13.88888/0.5 = 27.77777 m/s^2

Now we use Newton's law:

F=m*a

F=1700*27.7777 = 47222N
6 0
3 years ago
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