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Taya2010 [7]
4 years ago
12

To avoid overdriving your headlights, __________ A. cool your headlights periodically by switching to your parking lights. B. ma

ke sure you can stop in the distance you see ahead of you. C. use your high beams whenever you drive at night.
Physics
2 answers:
Anon25 [30]4 years ago
7 0
My Answer: <span>Make sure you can stop in the distance you see ahead of you. 

I feel A and C may cause an accident.

Hope I helped! :D</span>
IceJOKER [234]4 years ago
6 0

Answer: The correct answer is A.

Explanation:

To avoid over driving your headlights, cool your headlights periodically by switching to your parking lights.

It is difficult to stop in the distance you see ahead of you at night without using headlights. Otherwise, there may be chances of occurring an accident.

Avoid to use the high beams is used whenever you drive at night. Suppose, if the car is coming in front of your car then in this case the drivers to have a flash blindness. As he gets bright light in his eyes.  Otherwise, there may be chances of occurring an accident.

Therefore, to avoid over driving your headlights, cool your headlights periodically by switching to your parking lights.

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If a wave traveling through air decreases its wavelength by half, describe what happens to the wave speed and frequency.
natka813 [3]
The frequency, the speed and the wavelength of a wave are related by the following equation:
f= \frac{v}{\lambda} (1)
where
f is the frequency
\lambda is the wavelength
v is the wave speed

The speed of the wave does depend only on the properties of the medium, so since the wave is still traveling in air, the medium has not changed and therefore the speed remains the same. We see instead from eq.(1) that the frequency is inversely proportional to the wavelength, so if the wavelength is decreased by half, we see that the frequency will double.
5 0
3 years ago
Suppose you wanted to use the Earth's magnetic field to make an AC generator at a location where the magnitude of the field is 0
Likurg_2 [28]

Answer:

The angular velocity I would have to rotate it in order to generate an emf of amplitude 1.0 V is 254.65 rad/s

Explanation:

given information:

B = 0.5 mT = 0.0005 T

N = 1000

r = 5 cm = 0.05 m

emf, ε = 1 V

according to Faraday's law

ε = -N dΦ/dt, Φ = B A

  = - N d( B A)/dt

  = - N d( B A cos ωt)/dt

   = - N B A d(cos ωt)/dt

   = N B A ω sin ωt

A = πr², so

ε = N B πr² ω sin ωt

where

ε = emf

N = number of coil turn

B = magnetic field

r = radius

ω = angular velocity

Φ = magnetic flux

emf maximum, sin ωt = 1. So,

ε = N B πr² ω

ω = ε/N B πr²

   = 1/[(1000) (0.0005) π (0.05)²

   = 254.65 rad/s

6 0
4 years ago
A 60 kg student is standing motionless. Approximately how much force is the floor exerting on the student?
Solnce55 [7]
The normal force is equal in magnitude and opposite in direction to the weight of the student.
W = m · g = 60 kg · 10 m/s² = 600 N ( downward )
N = - 600 N
Answer:
B ) 600 N upward.
7 0
3 years ago
Across a horizontal distance of 25 feet, a roller coaster has a steep drop. The height of the roller coaster at the bottom of th
allsm [11]

X = total horizontal distance = 25 ft

Y = total vertical distance = 125 ft

x = horizontal distance = 1 ft

y = vertical distance = ?

using the equation

y = (Y/X) (x)

inserting the values

y = (125/25) (1)

y = 5 ft

hence for each horizontal foot, the average height change is 5 ft

or

25 ft horizontal distance traveled = 125 ft vertical distance dropped

dividing both side by 25

25 ft horizontal distance traveled/25 = 125 ft vertical distance dropped/25

1 foot horizontal distance traveled = 25 ft vertical distance dropped

6 0
3 years ago
Read 2 more answers
When a charge is discharged to the earth, we call it?
Tems11 [23]

Answer:

lightning

Explanation:

  • correct answer is Lightning because it is the naturally occurring electrostatic discharge, during 2 electrically charge field in atmosphere and on the ground temporarily equalize themselves and they instantly release energy.
  • As it is released cloud so we called it lightning but a spark is generated when the electric field strength is sufficient to ionize the molecules of air, creating a small conduction path through the air.
  • This is usually a cascade process, because free electrons accelerate in the electric field and ionize more molecules by colliding.

3 0
3 years ago
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