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3 years ago

I only need help on #15! Thanks!

Physics

1 answer:

Vanyuwa [196]3 years ago

7 0

I would have to say that 'B' and 'D' are both correct.

Increasing the voltage that you're using to operate a circuit
causes the current in the circuit to increase. But current is
just the number of electrons that are flowing through it. So
right there, you have the increase in the number of charges.

Now, every electron that flows through the circuit gives up
some energy on the way. So if there are more electrons
making the trip, then more energy has been put into the circuit.

Jessica, I absolutely love your printing.
I wish I could print so clearly.

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I need help on both questions

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3 years ago

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lapo4ka [179]

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2 years ago

What is the change in potential energy with respect to the ground of a 0.55 g son of a leech (a very effective fly for steelhead

IceJOKER [234]

Answer:

We will use Potential Energy Formula

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3 years ago

An object is pulled up an incline plane at a constant velocity as the picture above shows. Calculate the tension on the rope.

WARRIOR [948]

Hi there!

$\large\boxed{545N}$

Since the object is being pulled at a constant velocity, the forces must be balanced.

Since there is no movement vertically, we must take into account the horizontal forces. We can also assume a positive acceleration to be in the direction of motion.

The acceleration and force due to gravity on an incline is:

a = gsinФ

F = MgsinФ

∑F = -MgsinФ + T

Since it is getting pulled at a constant velocity, ∑F = 0. So:

0 = -MgsinФ + T

MgsinФ = T

Solve for T by plugging in values. Let g = 10 m/s²

T = (120)(10)sin(27) ≈ 545 N

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3 years ago

A bullet is fired from a gun at 45° angle to the horizontal with a velocity of 500 m/s. Find the

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answer :

D. 6370.92 m

Explanation:

pls refer to the attachment...

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3 years ago