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mr Goodwill [35]
3 years ago
11

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Physics
1 answer:
puteri [66]3 years ago
6 0

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Description

In classical mechanics, impulse is the integral of a force, F, over the time interval, t, for which it acts. Since force is a vector quantity, impulse is also a vector quantity. Impulse applied to an object produces an equivalent vector change in its linear momentum, also in the resultant direction.

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An automobile is sitting on a hill which is 20 m higher than ground level. Find the mass of the automobile if it contains 362,60
mr Goodwill [35]
M= ?
g=9.8 m/s (2)
h=20 m

Eg=362,600 J
Eg/mg

362,600 J/9.8 m/s (2) x 20 m
=1,850 m
6 0
3 years ago
Which of these events indicate that a chemical reaction might have occurred?
blagie [28]
Reactions occur when two or more molecules interact and the molecules change. Bonds between atoms are broken and created to form new molecules. That's it.
7 0
3 years ago
Compare the resistance of a 1.5-Amp interior light bulb of a car (operating off a 12-V battery) to the
OLga [1]

Answer:

The resistance of the internal light bulb of the car is higher than that of the household circuitry.

Explanation:

Given the following data;

I. Current = 1.5 A

Voltage = 12 V

To find the resistance;

Voltage = current * resistance

12 = 1.5 * resistance

Resistance = 12/1.5

Resistance = 8 Ohms

II. Power = 100 Watt

Voltage = 110 V

To find the resistance;

Power = voltage/resistance²

100 = 110/resistance²

Cross-multiplying, we have;

100resistance² = 110

R² = 110/100

R² = 1.1

Taking the square root of both sides, we have;

R = √1.1

R = 1.05 Ohms

Therefore, the resistance of the internal light bulb of the car is higher than that of the household circuitry.

8 0
3 years ago
Objects 1 and 2 attract each other with a gravitational force of 72.0 units. If the mass of Object 1 is one-fourth the original
Black_prince [1.1K]

Answer:

New gravitational force, F' = 216 units

Explanation:

Given that,

Gravitational force between object 1 and 2, F = 72 N

The gravitational force between two objects is given by :

F=\dfrac{Gm_1m_2}{r^2}

\dfrac{Gm_1m_2}{r^2}=72............(1)

If the mass of object 1, m_1'=\dfrac{m_1}{4}

m_2'=3m_2

If the distance between objects is halved, r'=\dfrac{r}{2}

Let new gravitational force is F'. It is changed to :

F=\dfrac{Gm'_1m'_2}{r'^2}

F'=\dfrac{G\times \dfrac{m_1}{4}\times 3m_2}{(\dfrac{r}{2})^2}

F'=3\times \dfrac{Gm_1m_2}{r^2}

F'=3\times F

F'=3\times 72

F' = 216 units

So, the  new gravitational force will be 216 units.

6 0
3 years ago
NEED HELP ASAP Does this Intro simulation support the law of conservation of energy? Use evidence to explain why or why not.
TiliK225 [7]

is this the skater one? If so, it does support the law of conservation of energy because at the top of the ramp the skater has the same amount of potential energy their total energy and as the skater goes down the ramp their potential energy lowers as their kinetic energy rises.

6 0
4 years ago
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