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nikitadnepr [17]
3 years ago
11

Tech A says that tires are marked with a date code listing the date the tires should be discarded. Tech B says that any tires wi

th a three-digit date code should be discarded because they are too old to be safely in service. Who is correct?
Physics
1 answer:
9966 [12]3 years ago
4 0

Tech B is saying correct.

<u>Explanation:</u>

Yes, tires are provided with date codes but those date codes are correlated with manufacturing or production dates and not with the date of discarding. But it is difficult to understand or decode the date code. The tires with 3 digit code represent very old tires while the tires with 4 digit code are made after 1999.

In the four-digit date code, the first two digits indicate the week during which that tire was produced and the last two digits indicate the year of production. So the statement said by Tech A is wrong and the statement said by Tech B is correct.

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Please help! What's the answer to this question, A 5.6 nC electric charge is placed in an Electric Field and experiences a force
zvonat [6]

Answer:

1321 N/C

Explanation:

From the question,

Electric Field (E) = Electric Force(F)/Electric Charge(q)

E = F/q............ Equation 1

Given: F = 7.4 μN = 7.4×10⁻⁶ N, q = 5.6 nC = 5.6×10⁻⁹ C

Substitute these value into equation 1

E = ( 7.4×10⁻⁶)/(5.6×10⁻⁹)

E = 1.321×10³ N/C

E = 1321 N/C

Hence the magnitude of the electric field at that location is 1321 N/C

3 0
3 years ago
What is the difference between an open and closed circuit?
exis [7]
A closed circle means the number is included and an open circle means its not.
7 0
3 years ago
Our ears receive sound waves and convert this energy into neural messages that travel to your brain and are processed as sounds.
Radda [10]

d  

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d  

transduction

6 0
3 years ago
wo skaters collide and embrace in an inelastic collision. Alex's mass is 90 kg and his initial velocity is 1.5 m/s i . Barbara's
Natalija [7]

Answer:

The two skaters will move with a common speed of 1.19 m/s.

Explanation:

Given that,

Mass of Alex, m_1=90\ kg

Initial velocity of Alex, u_1=1.5i\ m/s

Mass of Barbara, m_2=57\ kg

Initial velocity of Barbara, u_2=2j\ m/s

After the collision, the two skaters move together at a common velocity. Let V is the common velocity. Using the conservation of momentum as :

m_1u_1+m_2u_2=(m_1+m_2)V\\\\90\times 1.5i+57\times 2j=(90+57)V\\\\V=\dfrac{135i+114j}{147}\\\\V=\dfrac{135i}{147}+\dfrac{114j}{147}\\\\V=(0.91i+0.77j)\ m/s

Magnitude of final velocity:

|V|=\sqrt{0.91^2+0.77^2} \\\\|V|=1.19\ m/s

So, the two skaters will move with a common speed of 1.19 m/s.

3 0
4 years ago
Read 2 more answers
19
Anettt [7]

Proton: Its electrical charge is +1, its mass is 1, it's found in the nucleus

Neutron: Its electrical  charge is 0, its mass is 1, it's found in the nucleus

Electron: Its electrical charge is -1, its mass is negligible, it's found outside the nucleus

Explanation:

Atoms consist of three types of particles:

  • Proton: the proton is found in the nucleus of the atom, and it has a positive electric charge, equal to +1.6\cdot 10^{-19}C (expressed in units of fundamental charge, it has a charge of +1). Its mass is 1.67\cdot 10^{-27}kg, while its mass expressed in atomic mass units is 1 a.m.u
  • Neutron: the neutron is also found in the nucleus of the atom, and it has no electric charge. Its mass is similar to the mass of the proton (slightly larger), and neutrons and protons are held together in the nucleus by the presence of the strong nuclear force
  • Electron: the electron orbits around the nucleus, far away from it. It has negative electric charge, opposite to that of the proton (-1.6\cdot 10^{-19}C, or -1 in units of fundamental charge). Its mass is much lower than that of the proton, approximately 1800 times smaller, so it can be considered as negligible.

Learn more about atoms:

brainly.com/question/2757829

#LearnwithBrainly

8 0
4 years ago
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