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grigory [225]
4 years ago
15

Will Upvote!!

Physics
1 answer:
Anettt [7]4 years ago
6 0
A car slowing as it reaches a traffic light, because it is the only option with acceleration/ deceleration.
And forces require the mass of the object AND the acceleration.
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What is the force needed to accelerate a wagon with a mass of 10 kg at a rate
Mashutka [201]

Answer:

B

Explanation:

Remember:

<u>F = m * a </u>

 =  10 * 2  = 20 N

6 0
2 years ago
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How many calories are needed to raise the temperature of 2g of water 3 C?
olga nikolaevna [1]

Answer:

The number of calories needed is 6c.

Explanation:

The amount of energy Q needed to raise the temperature \Delta T of water of mass m is

Q = mC\Delta T

where C = 1cal/g\cdot C is the specific heat capacity of water.

Putting in numbers into equation (1), we get:

Q = (2g)(1)(3^oC )\\

\boxed{Q = 6\:cal }

which is the number of calories needed.

8 0
4 years ago
An "emergency blow" is a procedure used by military submarines to quickly rise to the surface in case of trouble. It involves us
sleet_krkn [62]

Answer:

Check the explanation

Explanation:

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7 0
4 years ago
(b) The cylinder shown in figure 2 is fitted with a freely sliding piston containing an ideal gas of mass 13g and volume 1.0×10⁴
nekit [7.7K]

Answer:

22600 cm³ (3 s.f.)

Explanation:

Please see the attached picture for the full solution.

6 0
3 years ago
In 1965, a group of students wore black arm bands to school in protest of American policies in Vietnam. Administrators banned th
Ede4ka [16]

Answer:

protected under students first amendment rights

Explanation:

did the studyisland :)

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3 years ago
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