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irina [24]
4 years ago
7

When approaching an intersection, bridge, or railroad crossing, you should never drive (pass on the left half of the roadway whe

n within:?
Physics
1 answer:
e-lub [12.9K]4 years ago
8 0
You should not go into the left side of the roadway when within 100 feet of the crossing. Moreover, you should also turn on your turn signal when within 100 of a turn. These precautions prevent accidents as it makes clear to other drivers what your intentions are and drivers making turns are not endangered. 
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A person drops a 2.00 kg ball off a building. what is the force of weight on the ball?
Lostsunrise [7]

Explanation:

Given

mass (m) = 2 kg

acceleration due to gravity (g) = 10 m/s²

Force (F) = ?

We know

F = m * a

= 2 * 10

= 20 N

The force is 20 N.

Hope it will help :)❤

8 0
3 years ago
The force of gravity is an inverse square law. this means that, if you double the distance between two large masses, the gravita
Nadya [2.5K]
F~1/r²
weakens by 1/4
4 0
4 years ago
What is the wavelength of a wave that travels at a speed of 3.0x10^8 m/s and has a frequency of 1.5x10^16 m/s?
Vlad [161]
Speed of wave = wavelength * frequency

Therefore, wavelength is 2.0 x 10^-8
5 0
3 years ago
Suppose the Sun were suddenly to shrink in size but that its mass remained the same. According to the law of conservation of ang
labwork [276]

I think its angular velocity would increase

8 0
4 years ago
A 1000 kg red car traveling at 40 m/s rear ends a 3000 kg blue car traveling at 35 m/s. the cars bounce off each other and the b
klemol [59]

Answer:

32.5 ms⁻¹

Explanation:

<em><u>Theory </u></em>

<u> The law of conservation of linear momentum </u>

The sum of linear momentum of a system under no external force remains constant.

In this scenario although different forces act on two vehicles by each other when we  consider the total system of two cars no external unbalance force act on them. So we can apply this law.

As law says,

The sum of linear momentum before collision = The sum of linear momentum after collision.

Momentum = mass × velocity

1000×40+3000×35 = 1000×v + 3000×37.5

where v = velocity of the red car after the cash

v = 32.5 ms⁻¹

8 0
3 years ago
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