2 years ago

Twin sisters Annie and Hannah are fighting

Physics

2 answers:

s344n2d4d5 [400]2 years ago

8 0

Fnet = -25N + 30N = 5N
(25N is negative since left is negative)

Papessa [141]2 years ago

3 0

Answer:

Fnet

Explanation:

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How is calculating amplitude

kykrilka [37]

It is same as calculating maths for math

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2 years ago

What force must act on a 50.0-kg mass to give it an ancceleration of 0.30 m/s^2?

ratelena [41]

Answer:

15.0 N

Explanation:

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2 years ago

A current of 1.41 A in a long, straight wire produces a magnetic field of 5.61 uT at a certain distance from the wire. Find

pshichka [43]

Answer:

0.050 m

Explanation:

The strength of the magnetic field produced by a current-carrying wire is given by

$B=\frac{\mu_0 I}{2\pi r}$

where

$\mu_0=4\pi \cdot 10^{-7} H/m$ is the vacuum permeability

I is the current in the wire

r is the distance from the wire

And the magnetic field around the wire forms concentric circles, and it is tangential to the circles.

In this problem, we have:

$I=1.41 A$ (current in the wire)

$B=5.61\mu T=5.61\cdot 10^{-6} T$ (strength of magnetic field)

Solving for r, we find the distance from the wire:

$r=\frac{\mu_0 I}{2\pi B}=\frac{(4\pi \cdot 10^{-7})(1.41)}{2\pi (5.61\cdot 10^{-6})}=0.050 m$

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2 years ago

The mineral quartz has a chemical formula of SiO2. What is the formal name<br> for this compound?

lana66690 [7]

Answer:

Silicon Dioxide

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3. What is electric current?<br> The flow of moving electrons<br><br> electrons that move one time

3241004551 [841]

Answer:

An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume. ... In electric circuits the charge carriers are often electrons moving through a wire.

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2 years ago

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