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
tresset_1 [31]
2 years ago
6

If the Sun were the size of a small exercise ball (about 0.5 meters (m) in

Physics
1 answer:
suter [353]2 years ago
4 0

Answer:

the size of a pea

Explanation:

You might be interested in
A magnetic field is entering into a coil of wire with radius of 2(mm) and 200 turns. The direction of magnetic field makes an an
frozen [14]

Answer:

a) <em>2.278 x 10^-5 volts</em>

b) <em>1.139 x 10^-6 Ampere</em>

c) <em>2.59 x 10^-11 W</em>

Explanation:

The radius of the wire r = 2 mm = 0.002 m

the number of turns N = 200 turns

direction of the magnetic field ∅ = 25°

magnetic field strength B = 0.02 T

varying time = 2 sec

The cross sectional area of the wire = \pi r^{2}

==> A = 3.142 x 0.002^{2} = 1.257 x 10^-5 m^2

Field flux Φ = BA cos ∅ = 0.02 x 1.257 x 10^-5 x cos 25°

==> Φ = 2.278 x 10^-7 Wb

The induced EMF is given as

E = NdΦ/dt

where dΦ/dt = (2.278 x 10^-7)/2 = 1.139 x 10^-7

E = 200 x 1.139 x 10^-7 = <em>2.278 x 10^-5 volts</em>

<em></em>

<em></em>

b) If the two ends are connected to a resistor of 20 Ω, the current through the resistor is given as

I = E/R

where R is the resistor

I = (2.278 x 10^-5)/20 = <em>1.139 x 10^-6 Ampere</em>

<em></em>

<em></em>

<em> </em>c) power delivered to the resistor is given as

P = IE

P = (1.139 x 10^-6) x (2.278 x 10^-5) = <em>2.59 x 10^-11 W</em>

4 0
3 years ago
There are three long parallel wires arranged so that, in cross-section, they occupy the points of an equilateral triangle. Is th
Harrizon [31]

Answer:

Yes, there is such a way.

Explanation:

If currents flow in the same direction in two or more long parallel wires, there will be an attractive force between the wires. If the current flows in different directions, there will be a repulsive force between the wires. In this case, these three parallel wires, can be be made to carry current in the same direction, creating an attractive force between all three wires.

Note that it is not possible to have at the least one of them carry current in the opposite direction and still have an attractive current between them.

8 0
3 years ago
Need help quick!!!!
BARSIC [14]
The answer is B. Unbalanced force
3 0
2 years ago
Read 2 more answers
PLS DO THIS FOR ME I NEED DONE ASAP
mart [117]
G g j inj g f d t u u i
8 0
2 years ago
How do you find velocity when given 3 numbers
forsale [732]
In general, that's not possible, unless the three numbers relate to
very specific quantities. 

For example, if the three numbers are the object's height, temperature,
and cost, then they are of no help at finding the object's velocity.
4 0
3 years ago
Other questions:
  • A rocket takes off from Earth and reaches a speed of 105 m/s in 18.0 s. If the exhaust speed is 1,200 m/sand the mass of fuel bu
    13·1 answer
  • While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 5.55 m/s. The stone subs
    14·1 answer
  • What is the overall function of the<br> excretory system?
    13·2 answers
  • (8c5p80) Imagine a landing craft approaching the surface of Callisto, one of Jupiter's moons. If the engine provides an upward f
    10·1 answer
  • Table salt is blank mixed with other compunds
    6·1 answer
  • I know that this is easy to do but can anyone help me out with this.
    10·2 answers
  • At one particular moment, a 19.0 kg toboggan is moving over a horizontal surface of snow at 3.60 m/s. After 6.75 s have elapsed,
    13·1 answer
  • A flashlight has a resistance of 30 Q and is connected
    14·1 answer
  • How does charging by conduction occur?
    5·1 answer
  • Exit ticket: A lamp is plugged into a 110 Volt electrical outlet. There is a 9 Watt LED bulb in the lamp. a. What is
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!