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slavikrds [6]
3 years ago
9

Two identical objects are moving directly toward one another at the same speed what is the the total kinetic energy of the syste

m of the two objects
Physics
1 answer:
galina1969 [7]3 years ago
6 0
 <span>Just add the two kinetic energies; 
E = (1/2)mv^2 + (1/2)mv^2</span>
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A. Does this graph represent an endothermic or an exothermic reaction? Explain your answer.
ra1l [238]

Answer:

Exothermic reaction

Explanation:

Exothermic reaction relases energy while endothermic absorbs energy.

8 0
3 years ago
Two trucks with equal mass are attracted to each other with a gravitational force of 5.3 x 10 -4 N. The trucks are separated by
HACTEHA [7]

Answer:

7327 kg or 7.3 tons

Explanation:

We have Newton formula for attraction force between 2 objects with mass and a distance between them:

F_G = G\frac{M_1M_2}{R^2}

where G =6.67408*10^{-11} m^3/kgs^2 is the gravitational constant on Earth. M = M_1 = M_2 is the masses of the 2 objects. and R = 2.6m is the distance between them.

F_G = 5.3*10^{-4}N is the attraction force.

5.3*10^{-4} = 6.67408*10^{-11}\frac{M^2}{2.6^2}

7941265 = \frac{M^2}{2.6^2}

M^2 = 53682948.76

M = \sqrt{53682948.76} \approx 7327 kg or 7.3 tons

3 0
4 years ago
What is the value of the charge that experiences a force of 2.4 × 10–3 n in an electric field of 6.8 × 10–5 n/c?
tia_tia [17]

Answer:

The value of charge is 35.3 C

Explanation:

Given:

Force F = 2.4 \times 10^{-3} N

Electric field E = 6.8 \times 10^{-5} \frac{N}{C}

According coulomb's law,

  F = qE

Where q = charge that experience a force,

For finding the value of charge,

    q = \frac{F}{E}

    q = \frac{2.4 \times 10^{-3} }{6.8 \times 10^{-5} }

     q = 35.3 C

Therefore, the value of charge is 35.3 C

6 0
3 years ago
Which of the following is an example of biotechnology?
anzhelika [568]
The short answer is a
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3 years ago
If you know the answer please answer the following question down in the picture below.
Harlamova29_29 [7]
I think it’s the second one: magnetic domains must come in pairs—one north and one south
3 0
4 years ago
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