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2 years ago

3. In Figure 2, which object (A, B, or C) has the highest density? Why?

Physics

1 answer:

Ira Lisetskai [31]2 years ago

6 0

Answer: C Because it has more dots in the rectangle meaning that if it has more dots than others then it has a higher density according to the model

Explanation:

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Please help & actually answer thank you :)

Katarina [22]

Answer:

0.5x35=17.5

Explanation:

You throw 0.5 kg the ball leaves your hand with

A speed of 35

4 0

2 years ago

Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional

mamaluj [8]

Answer:

here try this! i hope this helps

Explanation:

There are many advantages when we compare strength training with other forms of training. For example, the biggest benefit would be the increase of muscle mass due to us using the muscle more and for harder movements than usual. Strength training can preserve the mass that we lose with age. Bones also get stronger when we train so they are harder to fracture. We get more joint flexibility from the movements we do. So things as arthritis can be avoided or at least feel better.

8 0

2 years ago

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A flea can jump with an initial velocity of 2.2 m/s at an angle of 21° with respect to the

Serga [27]

Answer:

Explanation:

If no one can see it because the lights were out. Did the flea really jump?

What do you want here?

Max height (2.2sin21)²/ 2(9.8) = 3.2 cm

Time of flight 2(2.2sin21)/ (9.8) = 0.16 s

distance of flight (2.2cos21)(0.16) = 33 cm

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2 years ago

A 10.1 g bullet leaves the muzzle of a rifle with a speed of 425 m/s. What constant force is exerted on the bullet while it is t

PIT_PIT [208]

Answer

Force will be 1520.2604 N

Explanation:

We have given mass of the bullet m = 10.1 gram = 0.0101 kg

Distance S= 0.6 m

Final velocity v = 425 m/sec

Initial velocity u will be 0 m/sec

From third equation of motion $v^2=u^2+2as$

$425^2=0^2+2\times a\times 0.6$

$a=150520.833m/sec^2$

We know that force is given by F = ma

So force = 0.0101×150520.833 = 1520.2604 N

5 0

3 years ago

Which resistors in the circuit must have the same amount of energy per unit charge across them?

egoroff_w [7]

The correct answer is D): resistors B and C. In fact, the energy per unit charge is equal to the voltage across the resistors. The electrical potential energy is in fact: $U=qV$ , where q is the charge and V is the voltage; by rearranging the equation, we have $V= \frac{U}{q}$ , therefore the voltage is the energy per unit charge. In the circuit in the figure, the resistors B and C are connected to the same points of the circuit (they are connected in parallel), therefore they have the same voltage, so they have the same energy per unit charge.

6 0

2 years ago

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