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Oliga [24]
3 years ago
11

What is the starting and final energy for a battery?

Physics
1 answer:
EleoNora [17]3 years ago
8 0
Electrical energy is the starting and final energy of a battery
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If a boat and its riders have a mass of 1100 kg and the boat drifts in at 1.3 m/s how much work does Sam do to stop it
andriy [413]

Answer:

-929.5Joules

Explanation:

To get the work done by sam, we will calculate the kinetic energy of sam expressed as;

KE = 1/2mv²

m is the mass = 1100kg

v is the velocity = 1.3m/s

KE = 1/2(1100)(1.3)²

KE = 550(1.69)

KE = 929.5Joules

Since Sam is opposing the direction of movement, work done by him will be a negative work i.e -929.5Joules

5 0
3 years ago
A 1 in diameter solid round bar has a groove 0.1 in deep with a 0.1 in radius machined into it. The bar is made of AISI 1040 CD
Maru [420]

The answer & explanation for this question is given in the attachment below.

3 0
4 years ago
What does the stirrup press against
AveGali [126]
We need a system to use those air vibrations to push against the surface of the inner ear fluid.
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3 years ago
When comparing saturated and naturally occurring unsaturated fats, the unsaturated fats have __________ and are __________ at ro
Len [333]

Answer: have "cis C=C double bonds" and "liquid" at room temperature.

Explanation:

The unsaturated fatty acids have one or more C=C double bonds in the cis formation. Thus, this results in the molecules not been as stable as the saturated fats. They have weaker intermolecular bonds thus resulting in lower melting point . The consequently results in it being liquid at room temperature.

5 0
4 years ago
Two rods, one made of brass and the other made of copper, are joined end to end. The length of the brass section is 0.300 mm and
Marta_Voda [28]

Answer:

(a) T =45.9°C

(b) m = 124kg

Explanation:

In this problem there I'd heat flowing through bars of different composition.

The current flowing through the two bars mus be the same.

The full solution can be found in the attachment below.

8 0
3 years ago
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