1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stealth61 [152]
3 years ago
9

Maria is comparing data from an investigation about the melting point of ice. Based on her research, she knows ice

Physics
2 answers:
erica [24]3 years ago
8 0

Answer:

The answer Is set 4.

Explanation

eduard3 years ago
5 0

Answer:

set 2

Explanation:

You might be interested in
Two 2.0kg bodies A and B collide The velocities before the collision are U1=15i+30j and U2=-10j+5.0j After the collision V1=-5.0
Svetllana [295]

Use the law of conservation of momentum. Since the momentum is a linear measure, we can treat each of the dimension separately:

i-direction:

m_1u_{1i}+m_2u_{2i}=m_1v_{1i}+m_2v_{2i}\\v_{2i} = \frac{m_1u_{1i}+m_2u_{2i}-m_1v_{1i}}{m_2}=\frac{(2\cdot 15-2\cdot10+2\cdot5)kg\frac{m}{s}}{2kg}=10\frac{m}{s}

j-direction:

m_1u_{1j}+m_2u_{2j}=m_1v_{1j}+m_2v_{2j}\\v_{2j} = \frac{m_1u_{1j}+m_2u_{2j}-m_1v_{1j}}{m_2}=\frac{(2\cdot 30+2\cdot5-2\cdot20)kg\frac{m}{s}}{2kg}=15\frac{m}{s}

Answer: Final velocity is: (10i + 15j) m/s

Change in the kinetic energy:

\Delta E_k = E_{ku}-E_{kv} = \frac{1}{2}m(u_1^2+u_2^2-v_1^2-v_2^2)=\\=\frac{1}{2}2kg(1125+125-425-325)\frac{m^2}{s^2}=500J

Answer: The system lost 500J worth of kinetic energy in the collision

4 0
3 years ago
When using higher magnification, you need more light. which parts of the microscope can be adjusted to provide more light, and h
valina [46]

Increased lamp voltage is achieved by turning the light intensity dial.

To enlarge the diameter of the hole and let more light through the slide, the iris diaphragm was modified.

Condenser: Position it higher and closer to the slide's bottom to better direct light to the centre of the slide.

<h3>How do you adjust the light level on a microscope?</h3>

Utilize the brightness adjustment knob to change the brightness. Turn the brightness control knob while looking through the eyepieces to make sure there is no glare in the field of view.

Use a daylight balancing filter if your compound microscope has a certain sort of illumination. It typically rests directly on top of the luminator or in a filter holder above the light. This filter is blue.

The daylight balancing filter will correct the colour temperature and produce a higher-quality image if your microscope is lighted by tungsten or halogen (and a better colour image). This blue filter is not necessary if your microscope is an LED.

To learn more about light level on a microscope, visit:

brainly.com/question/14727797

#SPJ4

8 0
1 year ago
The waves shown below represent sound waves. Which of the waves would have the highest-pitched sound?
Ostrovityanka [42]
Humans hear frequencies from 20 Hz<span> (low) up to </span>20,000 Hz (high)

8 0
3 years ago
Precision measurements of the acceleration due to gravity show that the acceleration is slightly different in different location
DochEvi [55]
Gravity largely depends on the comparison of two objects; it's why you have the equation F= (GMm)/r^2. On Earth, you have different altitudes that, with the formula, will give different results for gravity because the radius is different everywhere. This difference on calculations, however, are seen to be miniscule. We know gravity as 9.81 m/s^2 but it might be different by thousandths or hundreds of thousandths of a decimal.
6 0
3 years ago
Read 2 more answers
PLZ HELP MEEEEEEEEE ASAP
mafiozo [28]
The answer is “Impulse acting on it” according to the impulse-momentum theorem.
6 0
3 years ago
Other questions:
  • A slice of bread contains about 100 kcal. If specific heat of a person were 1.00 kcal/kg·°C, by how many °C would the temperatur
    6·1 answer
  • A student uses a spring with a spring constant of 130 N/m in his projectile apparatus. When 56 J of
    15·1 answer
  • To explore the deepest parts of the ocean scientist have to design special underwater vehicles why do these vehicles need to be
    8·1 answer
  • Lc circuit consists of a 20.0 mh inductor and a 0.150 µf capacitor. if the maximum instantaneous current is 0.400 a, what is the
    14·1 answer
  • The ratio of the lift force L to the drag force D for the simple airfoil is L/D = 10. If the lift force on a short section of th
    10·1 answer
  • Which is NOT an INHERITED TRAIT?
    15·2 answers
  • What is SI unit of energy?​
    12·1 answer
  • An 80 kg object has a µk = 0.35 and a µs = 0.60. Assuming it is on a flat surface
    14·1 answer
  • If you jump upward with a speed of 1.70 m/s how high will you be when you stop rising?
    13·1 answer
  • The correlation between two observed variables is -0.84. from this, it can be concluded that:________
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!