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Fed [463]
3 years ago
12

Unit Test

Physics
1 answer:
irina [24]3 years ago
6 0

Neutrons

Explanation:

Atoms of the same elements are called isotopes. They differ from other atoms in the number of neutrons they posses. They share the same chemical properties but only differ with regards to their mass number.

  • Isotopy is a phenomenon whereby an atom of an element exist in more than one form but they have the same atomic number.
  • Atoms of such element only differ in the number of neutrons they contain.
  • Since the mass number of an atom is the sum of protons and neutrons, they differ in this number too
  • Isotopes have the same chemical properties.

learn more:

Isotopes brainly.com/question/10862182

#learnwithBrainly

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Answer:

both kinetic and potential energy

Explanation:

this is your ans

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I will always help you understanding your assingments

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Which of the following are true about S waves
shusha [124]

Answer:

3. they can travel through solids

4. they move rock at right angles to the direction of wave travel

Explanation:

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3 years ago
A 20-cm long spring is attached to the wall. When pulled horizontally with a force of 100N, the spring stretches to a length of
suter [353]

Answer:

Explanation:

Part 0

All the spring moves is 2 cm

x = 2 cm * [1 m / 100 cm ]

x = 0.020 meters

F = k*d

100N = k * 0.02 m

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Part A

The spring feels a force of 100 N - - 100N = 200 N because each person is pulling in the opposite direction.

F = k * x

200N = 5000 N/m * d

200 / 5000 = d

d = 0.04 meters.

Part B

10.2 kg must be converted to a force as experienced here on earth.

F = m * g

g = 9.81

m = 10.2

F = 10.2 * 9.81

F = 100.06 N

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d = 100.06 / 5000

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3 0
3 years ago
Which statements describe the motion of the object represented by the graph? Check all that apply.
Sav [38]

Answer:a, d, e

Explanation:

6 0
3 years ago
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On a highway, a car is driven 80. kilometers
nydimaria [60]

The average speed of the car for the entire trip can be calculate by using:

v=\frac{S}{t}

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The total distance travelled by the car is:

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while the total time taken is:

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so, the average speed of the car is:

v=\frac{S}{t}=\frac{170 km}{2.00 h}=85 km/h


so, the correct answer is (3) 85 km/h.

7 0
3 years ago
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