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
kkurt [141]
2 years ago
6

A 2.72 A current flows through a wire for

Physics
1 answer:
agasfer [191]2 years ago
8 0
  • Current=2.72A=I
  • Time=t=9.88s
  • Charge=Q

\\ \rm\longmapsto I=\dfrac{Q}{t}

\\ \rm\longmapsto Q=It

\\ \rm\longmapsto Q=2.72\times 9.88

\\ \rm\longmapsto Q=26.87C

You might be interested in
How much energy is stored in a 2.80-cm-diameter, 14.0-cm-long solenoid that has 200 turns of wire and carries a current of 0.800
ozzi

Answer:

The energy stored in the solenoid is 7.078 x 10⁻⁵ J

Explanation:

Given;

diameter of the solenoid, d = 2.80 cm

radius of the solenoid, r = d/2 = 1.4 cm

length of the solenoid, L = 14 cm = 0.14 m

number of turns, N = 200 turns

current in the solenoid, I = 0.8 A

The cross sectional area of the solenoid is given as;

A = \pi r^2\\\\A = \pi (0.014)^2\\\\A = 6.16*10^{-4} \ m^2

The inductance of the solenoid is given by;

L = \frac{\mu_0 N^2A}{l} \\\\L =  \frac{(4\pi*10^{-7})(200^2)(6.16*10^{-4})}{0.14}\\\\L = 2.212*10^{-4} \ H

The energy stored in the solenoid is given by;

E = ¹/₂LI²

E = ¹/₂(2.212 x 10⁻⁴)(0.8)²

E = 7.078 x 10⁻⁵ J

Therefore, the energy stored in the solenoid is 7.078 x 10⁻⁵ J

8 0
3 years ago
LOTS OF POINTSA rocket of mass 40 000 kg takes off and flies to a height of 2.5 km as its engines produce 500 000 N of thrust.
Svetradugi [14.3K]

Answer:

i) E = 269 [MJ]    ii)v = 116 [m/s]

Explanation:

This is a problem that encompasses the work and principle of energy conservation.

In this way, we establish the equation for the principle of conservation and energy.

i)

E_{k1}+W_{1-2}=E_{k2}\\where:\\E_{k1}= kinetic energy at moment 1\\W_{1-2}= work between moments 1 and 2.\\E_{k2}= kinetic energy at moment 2.

W_{1-2}= (F*d) - (m*g*h)\\W_{1-2}=(500000*2.5*10^3)-(40000*9.81*2.5*10^3)\\W_{1-2}= 269*10^6[J] or 269 [MJ]

At that point the speed 1 is equal to zero, since the maximum height achieved was 2.5 [km]. So this calculated work corresponds to the energy of the rocket.

Er = 269*10^6[J]

ii ) With the energy calculated at the previous point, we can calculate the speed developed.

E_{k2}=0.5*m*v^2\\269*10^6=0.5*40000*v^2\\v=\sqrt{\frac{269*10^6}{0.5*40000} }\\ v=116[m/s]

8 0
3 years ago
Students hypothesized that by running an electric current through the wire of the apparatus shown here, they could cause a non-m
astra-53 [7]
The answer is d i think
5 0
3 years ago
Read 2 more answers
What is the magnitude of the electric field at a distance of 89 cm from a 27 μC charge, in units of N/C?
GuDViN [60]

Answer:

306500 N/C

Explanation:

The magnitude of an electric field around a single charge is calculated with this equation:

E(r) = \frac{1}{4 \pi *\epsilon 0} \frac{q}{r^2}

With ε0 = 8.85*10^-12 C^2/(N*m^2)

Then:

E(0.89) = \frac{1}{4 \pi *8.85*10^-12} \frac{27*10^-6}{0.89^2}

E(0.89) = 306500 N/C

3 0
3 years ago
What is the empirical formula of metaldehyde, C8H16O4?
inessss [21]

Answer:

C8H16O4

Explanation:

ok??

7 0
2 years ago
Other questions:
  • Select the major problems associated with the production of nuclear energy.
    5·2 answers
  • The moon's orbit around the Earth will advance in one day:<br><br> 1°<br> 13°<br> 27°<br> 29°
    9·2 answers
  • When the moon orbits the Earth, it has velocity. Inertia would make the moon continue in a straight line instead of orbiting at
    9·1 answer
  • Need help on this please
    8·1 answer
  • A cell phone charger operates at 5 volts and can deliver a maximum current of 1.0 Amp. If your cell phone has an energy storage
    8·1 answer
  • An electron is moving northward in a magnetic field. The magnetic force on the electron is toward the northeast. What is the dir
    12·1 answer
  • Find the vector parallel to the resultant of the vector A=i +4j-2k and B=3i-5j+k​
    15·2 answers
  • How is the kintic energy of nolecules changing when the molecules move faster?
    11·2 answers
  • Plot the line for the equation on the graph.<br><br><br><br><br><br> y−2=−2(x+4)
    10·1 answer
  • How does amplitude determine loudness?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!