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disa [49]
3 years ago
6

A 5.5 kg (12 lb) bowling ball rolling at a modest 2 m/s has momentum of

Physics
1 answer:
Bond [772]3 years ago
4 0

Answer:

Momentum = Mass x Velocity

=5.5x2

=11kgm/s

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how to control stage fear or get rid of it ( please help me or share ur experience that how u got rid of it )
stira [4]
I have that problem, the only thing that helps me is to look at someone I know, like my parents or my sister or grandma etc. and don't think about what other people might think about you.
So good luck.

I hope this helps you.
7 0
3 years ago
Consider a room that is initially at the outdoor temperature of 208C. The room contains a 40-W lightbulb, a 110-W TV set, a 300-
Lostsunrise [7]

Answer:

The rate of increase of the energy content of the room when all the eletrical devices are on is 1650 W.

Explanation:

From conservation of energy,

Rate of energy transfer (\dfrac{dE}{dt}) = Rate of change of energy within the room (E_{in} - E_{out}).

As according to the problem no heat transfer occurs through the walls of the room we can assume that there is no energy transferred to the outside of the room, i.e., E_{out} = 0.

If all the electric devices are on inside the room, then the rate of increase of energy is equal to the power (P_{in}) consumed bt the electrical devices inside the room. Therefore we can write,

\dfrac{dE}{dt} = \dfrac{dE_{in}}{dt} = P_{in} = P_{bulb} + P_{TV} + P_{refrigerator} + P_{iron} = (40 + 110 + 300 + 1200)~W = 1650~W

7 0
3 years ago
In addition to the lyre, which instrument did minnesingers use to accompany their songs?
Gre4nikov [31]

Answer:

In addition to the lyre minnesingers used harp to accompany their songs.

Explanation:

4 0
3 years ago
Someone please help me will give BRAILIEST!!!!
Mrac [35]
I would say it is 10 percent
4 0
3 years ago
The magnetic field of a bar magnet Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an
viva [34]

Answer:

A: Always points from north to south, whether we look outside the magnet or inside the magnet

Explanation:

When we freely suspend a bar magnet, it's magnetic field will always rest in the north to south direction due to the fact that the Earth's magnetic south pole usually lies in the direction of the geographic north while the Earth's magnetic north pole usually lies in the direction of the geographic south.

Now, we all know that in magnets, like poles will repel and unlike poles will attract. What this now means is that the magnet will always point from the north to the south direction.

7 0
3 years ago
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