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Nookie1986 [14]
3 years ago
6

PLEASE HELP ITS DUE IN THE NEXT 30 MINUTES!!!!!!!!

Physics
1 answer:
olga nikolaevna [1]3 years ago
6 0

Answer:

Explanation:

Impulse results in change of momentum

FΔt = mΔv

F = 0.030(50.0 - 0) / 0.010 = 150 N

The vertical portion of that force adds to his weight on the ice

Fmax = 60.00(9.81) + 150sin30 = 663.6 N

As this is above the ice strength, He takes a cold dip.

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To get an idea how big a farad is, suppose you want to make a 1.0-F air-filled parallel-plate capacitor for a circuit you are bu
hichkok12 [17]

Answer:

<em>The gap between the plates will be 1.2 x 10^-15 m</em>

<em>No, this is not practically achievable.</em>

Explanation:

Capacitance = 1.0 F

area of plate = 1.4 cm^2 = 1.4/10000 m^2 =  m^2

distance = ?

We use the equation

C =  \frac{A}{d}*ε

C is the capacitance

where A is the area

d is the distance of separation of plates

ε is the permeability of free space = 8.854×10^-12 F⋅m−1

substituting values, we have

1 = \frac{0.00014}{d}* 8.854×10^-12

distance between plates = <em>1.2 x 10^-15 m</em>

<em>This is not practically achievable in real life</em>

5 0
3 years ago
What's the quantum number for a particle in an infinite square well if the particle's energy is 64 times the ground-state energy
astra-53 [7]

Answer:

8

Explanation:

The energy levels is given as

E(n) = n² * h² / ( 8 * m * L²), where

n = 1, 2, 3, 4,... etc

At ground state energy (n = 1), therefore is E(g) = h² / (8 * m * L²).

We can then say that

E(n) = n² * Eg

Therefore, to have E = 64 Eg, we must have n² = 64. And for n² to be equal to 64, we find the square root of n

n = √64

n = 8

Essentially, the needed quantum number is 8

8 0
3 years ago
Consider the binding energy of two stable nuclei, one with 60 nucleons and one with 200 nucleons. a. Is the total binding energy
sashaice [31]

Answer:

The total binding energy of the nucleus with 200 nucleons more than the total binding energy of the nucleus with 60 nucleons

Explanation:

Binding energy can be given by the formula:

Binding energy = Binding energy per nucleon * Number of nucleons

This means that if the binding energy per nucleon = x MeV

Where x is a positive real number

The nucleus with 60 nucleons will have Binding energy = 60x MeV

The nucleus with 200 nucleons will have binding energy = 200x MeV

For a +ve x, 200x > 60x

4 0
4 years ago
A 19.0 g sample of liquid methane is heated at a constant pressure of 1 atm from a temperature of 109.1 K to a temperature of 18
iragen [17]

Answer:

The energy required is 12.887KJ

Explanation:

There are two separate heat inputs involved in this problem:

  • q₁ = heat added to vaporize the methane at 109.1 K
  • q₂ = energy added to heat the vapor from 109.1 K to 185.3 K

q = q₁ +q₂

q = nΔH + mCΔT

where;

n is number of moles of methane

ΔH is the molar enthalpy of vaporization of methane =8.17 kJ/mol

m is the mass of methane = 19g

C is the specific heat capacity of gaseous methane = 2.20 J/g.K

ΔT = T₂ - T₁ = 185.3 - 109.1 = 76.2 K

n = Reacting mass/Molar mass

molar mass of methane (CH₄) = 16g/mol

n = 19/16 = 1.1875 mol

⇒q₁ = nΔH = 1.1875 X 8.17 = 9.702 kJ

⇒q₂ = mCΔT, = 19 X 2.2 X 76.2 = 3185.16 J = 3.18516KJ

q = q₁ +q₂, ⇒ 9.702 kJ + 3.18516KJ = 12.887KJ

Therefore, the energy required is 12.887KJ

6 0
4 years ago
If a material, such as concrete, can withstand a large applied weight but gives away (ruptures) quickly when a crack forms, then
MrMuchimi
The correct answer is brittle:)
6 0
4 years ago
Read 2 more answers
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