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ExtremeBDS [4]
2 years ago
14

Need help on number 5 and 6

Physics
2 answers:
Hitman42 [59]2 years ago
5 0

Answer:

b and c

Explanation:

hopes this helps i took the test.

Whitepunk [10]2 years ago
4 0

Answer:

jowieahudsfnkdmlew2l,poeq3riugjnkfmdko

Explanation:

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15. Some people have observed that animal behavior changes just before an earthquake. What might explain this?
Ber [7]

Answer:

15: Animals are able to detect the first of an earthquake's seismic waves—the P-wave, or pressure wave, that arrives in advance of the S-wave, or secondary, shaking wave. This likely explains why animals have been seen snapping to attention, acting confused or running right before the ground starts to shake.

16: No, it is not even remotely true. Microwaves cook food from the outside in, just like a regular oven. In fact, most of the cooking on the inside of the food, depending on its thickness, is done by heat conduction from the outside surfaces inwards, as the microwaves do not actually penetrate that far into the food.

3 0
2 years ago
A child is riding a merry-go-round that has an instantaneous angular speed of 12 rpm. If a constant friction torque of 12.5 Nm i
sammy [17]

Answer:

-0.25 rad/s^2

Explanation:

The equivalent of Newton's second law for rotational motions is:

\tau = I \alpha

where

\tau is the net torque applied to the object

I is the moment of inertia

\alpha is the angular acceleration

In this problem we have:

\tau = -12.5 Nm (net torque, with a negative sign since it is a friction torque, so it acts in the opposite direction as the motion)

I=50.0 kg m^2 is the moment of inertia

Solving for \alpha, we find the angular acceleration:

\alpha = \frac{\tau}{I}=\frac{-12.5 Nm}{50.0 kg m^2}=-0.25 rad/s^2

3 0
3 years ago
The orbital period of an object is 2 x 10^7 and its total radius is 4 x 10^4 m.
SVETLANKA909090 [29]

Answer:

12566

Explanation:

Use formula: vt=2pir/t

7 0
3 years ago
Read 2 more answers
A positive charge moves in the direction of an electric field. Which of the following statements are true?
Gre4nikov [31]

Answer:

The potential enwrgy associated with charge decreases.

The ele ric field does negative work on the charge.

Explanation:

3 0
3 years ago
Read 2 more answers
Which answer is not a problem associated with sulfur dioxide? A) damage to buildings B) ozone depletion C) vegetation death D) b
swat32

Answer:

Answer is A. damage to buildings.

Explanation:

I hope it's helpful!

8 0
2 years ago
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