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3 years ago

Which statement explains how gravity and inertia work together?

Physics

2 answers:

Grace [21]3 years ago

7 0

Answer: Its a

Explanation:

Ymorist [56]3 years ago

4 0

Answer:

the answer is A

Explanation:

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Large vehicles need more room to make turns. when you approach an intersection and see a truck ahead signaling a right turn, you

netineya [11]

This statement is false.
The correct statement would be,
"W<span>hen you approach an intersection and see a truck ahead signaling a right turn, you should stay behind the truck, away from the curbside, until the turn is completed."

Larger vehicles require a larger space to turn, being next to the truck and close to the curbside will only make it more difficult for the truck driver to complete the turn. This in turn will waste more time or even block traffic while the truck driver tries to complete the turn in the difficult situation that could have easily been avoided.</span>

4 0

3 years ago

A car travelling at 15m/s comes to a rest in a distance of 14m when the brakes are applied. Calculate the deceleration of the ca

vlada-n [284]

Answer:

force of the breaks is 6650 N, direction opposite to direction of movement

Explanation:

6 0

3 years ago

Read 2 more answers

A 700 kg car is moving at 10 m/s west rear ends a 500 kg car at rest. They both stuck together after the collision and continue

nataly862011 [7]

Answer:

$v = 5.833\,\frac{m}{s}$

Explanation:

The collision is inelastic and can be described by the Principle of Momentum Conservation:

$(700\,kg)\cdot (10\,\frac{m}{s} ) + (500\,kg)\cdot (0\,\frac{m}{s} ) = (1200\,kg)\cdot v$

The speed after the collision is:

$v = 5.833\,\frac{m}{s}$

6 0

3 years ago

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You are determining the mass of an object using a triple beam balance. When the pointer is lined up with the zero mark, the ride

astra-53 [7]

We add the values on each of the riders:
300 + 20 + 8
= 328 grams

3 0

3 years ago

Read 2 more answers

he summit of Mount Everest is 8850 m above sea level. (a) How much energy would a 78 kg climber expend against the gravitational

natali 33 [55]

Answer:

The energy which is expend by the person is $U=6.7\times 10^{6}J$ .

Explanation:

The formula for the potential energy due to the height of the object is as follows as;

U= mgh

Here, h is the height of the person, m is the mass of the object and g is the acceleration due to gravity.

It is given in the problem that a person is 8850 m above the sea level. 78 kg climber would expend energy against the gravitational force in climbing to the summit from sea level. Here, the person has potential energy as he is above the sea level.

Put h= 8850 m, m= 78 kg and $g = 9.8 m s^{-2}$ and in the above expression to get the value of energy.

U= (78)(9.8)(8850)

U= 6764940 J

$U=6.7\times 10^{6}J$

Therefore, the energy which is expend by the person is $U=6.7\times 10^{6}J$ .

8 0

3 years ago