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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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an object is producing a sound that has a wavelength in air of 2.69m. If the speed of sound in air is 346m/s, what is the freque
Misha Larkins [42]

Answer:

129.74 Hz

Explanation:

Given:

Wave velocity ( v ) = 346 m / sec

wavelength ( λ ) = 2.69 m

We have to calculate Frequency ( f ) :

We know:

v = λ / t [ f = 1 / t ]

v = λ f

= > f = v / λ

Putting values here we get:

= > f = 346 / 2.69 Hz

= > f = 34600 / 269 Hz

= > f = 129.74 Hz

Hence, frequency of sound is 129.74 Hz.

5 0
3 years ago
Please help ASAP. How is heat related to work?
earnstyle [38]
Energy is the ability to do work so I would say that thermal or heat energy is a type of work. Don’t know if this will work but that’s what I would put.
7 0
4 years ago
What could you do to decrease the rate at which salt dissolves in water?
kotykmax [81]

Answer:

use hot water

Explanation:

hot water helps dissolve things faster

3 0
3 years ago
A uniform magnetic field B=5.210 T is perpendicular to the plane of the paper (into the page). The current-carrying wire of valu
ehidna [41]

Answer:5.21 N

Explanation:

Given

B=5.210 T

I=2 A

L=0.5 m

Given Wire is perpendicular to Magnetic field

\theta =90^{\circ}

F=IL\times B

F=BIL sin\theta

F=5.210\cdot 2\cdot 0.5 sin(90)

F=5.210 N

as  1 Tesla =1 N/A/m

4 0
3 years ago
Solve for real t: -25=20t-5t^2
PolarNik [594]
Answer should be <span>t=<span>−<span><span>1<span> or  </span></span>t</span></span></span>=<span>5</span>
3 0
3 years ago
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