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
Fynjy0 [20]
3 years ago
11

HELP NEEDED PLEASE

Physics
1 answer:
Llana [10]3 years ago
8 0
3 is amp, 1 is frequency, 2 is trough
You might be interested in
a school bus has stopped to allow children to get off the bus which graph shows the motion of the bus?​
Usimov [2.4K]

Answer: what is it in

Explanation:

4 0
3 years ago
Five moles of an ideal monatomic gas with an initial temperature of 121 ∘C expand and, in the process, absorb an amount of heat
liq [111]

Answer:

  T₂ ≈ 107.85∘C

Explanation:

The question didn't state if the volume is constant or not as such, we can apply the first law of thermodynamic

From the first law of thermodynamic,

ΔU =  Q - W

where ΔU = Internal Energy, Q = Quantity of heat absorbed, W = Amount of work done.

Q = 1200 J and W = 2020 J

∴ ΔU = 1200 -2020 = -820 J.

Using the ideal gas equation,

ΔU = 3/2nRΔT...................................equation 1

where n = number of moles, R = Molar gas constant, ΔT = Change in temperature = (T₂ - T₁).

Modifying equation 1,

ΔU = 3/2nR(T₂ -T₁)...............................equation 2.

making T₂ the subject of the relation in equation 2,

T₂ =  {2/3(ΔU)/nR}+T₁........................ equation 3

where T₁=121∘C, R= 8.314 J / mol, n=5 moles, ΔU=-820 J

Substituting these values into equation 3,

∴ T₂ ={ 2/3(-820)/(5×8.314)}+121

   T₂ = {2×(-820)/ (3×5×8.314)}+121  

   T₂={-1640/124.71}+ 121

   T₂ = {-13.151} + 121

 ∴T₂  = 121 - 13.151 = 107. 849∘C

    T₂ ≈ 107.85∘C

3 0
3 years ago
A student wants to design an experiment to study the transformation of mechanical energy. Which object can be used to investigat
Vsevolod [243]
I guess it’s the 3rd one
7 0
3 years ago
Read 2 more answers
The magnitude of a vector can never be less than the magnitude of one of its components. Group of answer choices True False
pogonyaev

Answer:

True

Explanation:

As the formula for magnitude of a vector v and their components v_1, v_2, v_3, v_4,..., v_n is

v^2 = v_1^2 + v_2^2 + ... +v_n^2

Since v_1^2, v_2^2, v_3^2, v_4^2,..., v_n^2 \geq 0, this means the sum of them, v^2, is always greater or equal to v_1^2, v_2^2, v_3^2, v_4^2,..., v_n^2

6 0
3 years ago
A rocket with a mass of 62,000 kg (including fuel) is burning fuel at the rate of 150 kg/s and the speed of the exhaust gases is
mezya [45]

Answer:

h≅ 58 m

Explanation:

GIVEN:

mass of rocket M= 62,000 kg

fuel consumption rate =  150 kg/s

velocity of exhaust gases v= 6000 m/s

Now thrust = rate of fuel consumption×velocity of exhaust gases

=6000 × 150 = 900000 N

now to need calculate time t = amount of fuel consumed÷ rate

= 744/150= 4.96 sec

applying newton's law

M×a= thrust - Mg

62000 a=900000- 62000×9.8

acceleration a= 4.71 m/s^2

its height after 744 kg of its total fuel load has been consumed

h= \frac{1}{2}at^2

h= \frac{1}{2}4.71\times4.96^2

h= 58.012 m

h≅ 58 m

4 0
3 years ago
Other questions:
  • Which example best illustrates that light behaves like particles?
    12·2 answers
  • An AM radio station broadcasts isotropically (equally in all directions) with an average power of 3.80 kW. A receiving antenna 7
    10·1 answer
  • When a driver presses the brake pedal, his car can stop with an acceleration of -5.4m/s^2. How far will the car travel while com
    13·1 answer
  • How were the fossil symbols and mountain bets helpful in deciding where to move the continenets
    11·1 answer
  • At divergent boundaries, hot mantle rock rises and _____ occurs.
    9·2 answers
  • Salma takes 15 minutes from her house to reach her school on a bicycle. If the bicycle has a speed of 2 m/s, calculate the dista
    11·1 answer
  • How are average speed and velocity related to each other for an object in uniform motion?
    5·1 answer
  • Is a force that opposes the motion between two objects in contact with each other.
    15·2 answers
  • A 4.0-kg object is supported by an aluminum wire of length 2.0 m and diameter 2.0 mm. How much will the wire stretch?
    8·1 answer
  • An astronaut with a mass of 91 kg is 0.30 m above the moons surface. The astronauts potential energy is 46 J. Calculate the free
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!