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victus00 [196]
3 years ago
9

An object is dropped from rest. Calculate its velocity after 2.5 seconds

Physics
1 answer:
olga2289 [7]3 years ago
6 0
Velocity = 9.8 x 2.5 = .... m/s
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Two trains are traveling side-by-side along parallel, straight tracks at the same speed. In a time t, train A doubles its speed.
sergij07 [2.7K]

Answer:

derdddrdickdd

Explanation:

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3 years ago
Select all of the statements that are true.
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I think its all four of them could be wrong but try all four !!!!!!

7 0
3 years ago
Light of wavelength 436.1 nm falls on two slits spaced 0.31 mm apart. What is the required distance from the slits to the screen
kakasveta [241]

Answer:

The correct answer is "4.26 m".

Explanation:

Given:

Wavelength,

\lambda = 436.1 \ nm

or,

  =436.1\times 10^{-9} \ m

Distance,

d = 0.31 \ mm

or,

  =0.31\times 10^{-3} \ m

Distance between the 1st and 2nd dark fringes,

(y_2-y_1) = 6\times 10^{-3} \ m

As we know,

⇒ \frac{d}{L} (y_2-y_1) = \lambda

or,

⇒ L=\frac{d(y_2-y_1)}{\lambda}

By substituting the values, we get

       =\frac{0.31\times 6\times 10^{-6}}{436.1\times 10^{-9}}

       =\frac{0.31\times 6\times 10^3}{436.1}

       =\frac{1860}{436.1}

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3 0
3 years ago
The total charge that an automobile battery can supply without being recharged is given in terms of Ampere-hours. A typical 12-V
anyanavicka [17]

Answer:

7 hours

Explanation:

The total charge contained in the battery is

Q = 49 A \cdot h

And this is a charge, since it is a current multiplied by a time:

Q=It

The current drawn by each headlight (which is the charge consumed per second) is

I=3.5 A

Since we have two headlight, the total current drawn is

I=3.5 \cdot 2 = 7 A

Therefore, the total charge consumed by the two headlights each hour is

q = I \cdot h = 7 A \cdot h

So, the time before the battery is dead is

t=\frac{Q}{q}=\frac{49 Ah}{7Ah}=7 h

5 0
3 years ago
A positive or negative outcome of a decision or action can be called a
Mandarinka [93]
The answer to this would be :
<span>consequence
</span>hope that this helps you! 
Source: I had done a research about this. =)
7 0
3 years ago
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