2 years ago

A pendulum is lifted and released, causing the pendulum to oscillate in

Physics

1 answer:

kap26 [50]2 years ago

8 0

Answer:

D. Energy is converted between kinetic and gravitational potential energy.

Explanation:

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Yes, Mirror are a surface that reflects light more perfectly than ordinary objects.

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3 years ago

What is the equivalent resistance for a series circuit with three resistors : 5.0 ohms, 2.0 ohms, and 12.0 ohms

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Explanation:

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3 years ago

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3 years ago

A straight wire 0.10 m long carrying a current of 2.0 A is at right angles to a magnetic field. The force on the wire is 0.04 N.

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Answer:

The strength of magnetic field is 0.2 Tesla.

Explanation:

Data from the question is

Length (L) of wire ; L=0.10 m

Current in wire ; I= 2.0 A

Force on wire ; F = 0.04 N

Angle = Right angle So, $\theta$ $\thita = 90^{o}$

Now ,

We have to find the magnetic Field strength (B)

For this formula for Force on wire in magnetic field is

$F = I \times B \times L \times sin(\theta)$

Further modified as

$B = \frac{F}{I \times L \times sin(\theta)}$

Now insert values in the formula

$B = \frac{0.04N}{2.0A \times 0.10 m \times sin(90^{0})}$

$B = 0.2 T$

So, the strength of magnetic field is 0.2 Tesla.

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3 years ago

The unit of energy is derived unit. ( give reasons)

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Because it is made by two different unit force (F) and displacement(s)

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