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frozen [14]
3 years ago
13

Need help on this please

Physics
1 answer:
Ratling [72]3 years ago
8 0

question 2 answer is ALL OF THE ABOVE

question 3 answer is WARM AND MOIST.

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Two long, straight parallel wires 8.2 cm apart carry currents of equal magnitude I. The parallel wires repel each other with a f
o-na [289]

Answer:

36.22 mA

Explanation:

i1 = I , i2 = I, d = 8.2 cm = 0.082 m

Force per unit length = 3.2 nN/m = 3.2 x 10^-9 N/m

μo = 4 π × 10^-7 Tm/A

The formula for the force per unit length between the two wires is given by

F = μo / 4π x (2 i1 x i2) / d

3.2 x 10^-9 = 10^-7 x 2 x I^2 / 0.082

I = 0.0362 A = 36.22 mA

4 0
4 years ago
If then hypothesis for egg drop
Marina86 [1]
If I drop my egg unprotected, then it will break.
6 0
3 years ago
A magnetic field is used to suspend a wire of mass 0.05 kgkg and length 0.16 mm . The wire is carrying a current of 11 AA . What
pochemuha

Answer:

B=0.27840\ T

Explanation:

Given:

mass of the wire, m=0.05\ kg

length of the wire, L=0.16\ m

current in the wire, I=11\ A

Now form the Lorentz force we know that every current carrying wire experiences a magnetic force on it due to the magnetic field components perpendicular to it.

Mathematically given as:

F=I.L\times B

m.g=I.L\times B

here: we nee to balance the gravitational force on the mass.

B= magnetic field

0.05\times 9.8=11\times 0.16\times B

B=0.27840\ T

This magnetic field must be perpendicular to the direction of current in the wire and the these two directional quantities must lie in a plane normal  to the direction of gravity according to the Fleming's left hand rule.

7 0
3 years ago
A ball is thrown horizontally from the top of a building 0.10 km high. The ball strikes the ground at a point 65 m horizontally
Alex787 [66]

Answer:

47 ms

well the time it takes to fall 100m is the same time it takes to travel 65m horizontally.

The time to fall vertically, t is sqrt(2d/g). [this comes from d = 1/2at^2]

so t = sqrt(2*100/9.8) = 4.52s.

The vertical speed at that time is g*t = 9.8*4.52 = 44.3m/s

The horizontal speed is the horizontal distance over the same 4.52s, = 65/4.52 = 14.4m/s.

so the final velocity is = sqrt(44.3^2 + 14.4^2) = 47.ms

4 0
3 years ago
What is your operational definition for a fast reaction time?
LuckyWell [14K]

Answer:

The ability to react to a certain stimulus with a speedy and effective manner

Explanation:

7 0
3 years ago
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