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
never [62]
3 years ago
13

Which is the correct answer?

Physics
1 answer:
Masja [62]3 years ago
3 0
The correct answer is A, 2x^3 - x^2 +3x +7

You might be interested in
Conduction, convection, and radiation are ways by which,
Amiraneli [1.4K]

the answer is THERMAL

6 0
3 years ago
Read 2 more answers
Cho đoạn thẳng OAB. Đặt điện tích q tại O thì cường độ điện trường do nó gây ra ở A là EA =1600V/m,tạiBlàEB =100V/m.Cường độ điệ
BlackZzzverrR [31]

Answer:.

Explanation:

8 0
3 years ago
You place an ice cube of mass 7.50×10−3kg and temperature 0.00∘C on top of a copper cube of mass 0.540 kg. All of the ice melts,
lbvjy [14]

Answer:

The value is T_c  =  12 .1 ^oC

Explanation:

From the question we are told that

The mass of the ice cube is m_i  =  7.50 *10^{-3} \  kg

The temperature of the ice cube is T_i = 0^o C

The mass of the copper cube is m_c  =  0.540 \  kg

The final temperature of both substance is T_f  =  0^oC

Generally form the law of thermal energy conservation,

The heat lost by the copper cube = heat gained by the ice cube

Generally the heat lost by the copper cube is mathematically represented as

Q =  m_c  *  c_c *  [T_c  -  T_f ]

The specific heat of copper is c_c  = 385J/kg \cdot  ^oC

Generally the heat gained by the ice cube is mathematically represented as

Q_1 =  m_i * L

Here L is the latent heat of fusion of the ice with value L  =  3.34 * 10^{5} J/kg

So

Q_1 =  7.50 *10^{-3} * 3.34 * 10^{5}

=> Q_1 =  2505 \ J

So

2505  =  0.540  *  385 *  [T_c  - 0 ]

=>    T_c  =  12 .1 ^oC

4 0
3 years ago
I need so much help 50 points!!!!!!<br><br>complete the graph
motikmotik

<u>First Symbol </u>: Cobalt (Co)

Its Group Number - 9

Its Period Number - 4

Its Family Name - Transition Metal

<u>Second Symbol</u> : Silicon (Si)

Its Group Number - 14

Its Period Number - 2

Its Family Name - Semiconductor

<u>Third Symbol</u> : Astatine (At)

Its Group Number - 17

Its Period Number - 6

Its Family Name - Halogen

<u>Fourth Symbol </u>: Magnesium (Mg)

Its Group Number - 2

Its Period Number - 3

Its Family Name - Alkaline Earth Metal

<u>Fifth Symbol</u> : Xenon (Xe)

Its Group Number - 18

Its Period Number - 5

Its Family Name - Noble Gas

6 0
3 years ago
Calculate the force exerted on this test dummy with a mass of 75 kg hits an air bag accelerating at 12 m/s2.
maksim [4K]

Answer: 900

Explanation: Force equals mass x acceleration F=M×A

3 0
3 years ago
Other questions:
  • Which part of the Earth do the suns direct rays hit during the summer solstice?
    11·2 answers
  • 13. A nuclear decay chain represents
    5·1 answer
  • Two of the three tuning forks have known frequencies. When a 510 Hz. fork and the unknown fork are struck together, four beats p
    7·1 answer
  • Which of these is generally considered to have been discovered by Einstein?
    13·2 answers
  • 96 K = _____<br> -177°C<br> 0°C<br> 96°C<br> 369°C
    6·1 answer
  • 46 points :)
    9·2 answers
  • When you start from your house, your bike’s speedometer dial shows a reading of 842 Km. After you go on a straight road for half
    15·1 answer
  • ⦁ A certain resistor is required to dissipate 0.25 W, what standard rating should be used?
    9·1 answer
  • What is the distance between a(-6,3),b(-2,4),c(-8,3)​
    15·1 answer
  • Which would require the greater energy; slowing down of the orbital speed of the Earth so it crashes into the sun, or speeding u
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!