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8_murik_8 [283]
3 years ago
6

Khi tia tới hợp với pháp tuyến tại điểm một góc i = 30 độ thì tia phản xạ hợp với pháp tuyến tại điểm tới một góc

Physics
1 answer:
Novay_Z [31]3 years ago
8 0

Answer:

h jo

yhufjffj

m

m

m

m

m

n

m

j.j

j

njbgjbhggh

kjbn

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If your brakes fail, look for something to rub against, try to pick something that will not give way.True or False?
Yanka [14]

Answer:

False

Explanation:

False

If brakes fail then we should not run against any object or wall to slow down the speed instead we should use friction forces slow down the car and shift gear to neutral to cease any acceleration.

By driving zig-zag motion friction force on the tires may stop the car after some distance.

Do not try to shut off the engine as it will lock the steering mechanism any prove fatal.

7 0
3 years ago
A sphere has a mass of 8.5 kg and a radius of 10cm. How much work is it necessary to do on the ball to get it to a speed of 6.0m
LenaWriter [7]

Answer:

<h2>153J</h2>

Explanation:

Step one:

given data

mass m= 8.5kg

radius r= 10cm in meters = 0.01m

velocity v= 6m/s

The work done will be the same as the energy possessed by the sphere at such speed

Required

the work one in Joules

we know that

KE=1/2mv^2

KE=1/2*8.5*6^2

KE= 1/2*8.5*36

KE=306/2

KE=153J

5 0
3 years ago
Which of these is not shared by bohrs model and the modern atomic model?
KonstantinChe [14]

Answer:

D. both have electrons that orbit the atomic nucleus in a simaler way

Explanation:

the bohrs model electrons orbit in a circular pattern were as the modern atomic model orbit in every which way

3 0
3 years ago
Which device in a car helps to protect riders from the effects of inertia in the event of an acident
Schach [20]
The seatbelt, as it prevents you from flying out of your window.

if this was the appropriate answer make sure to mark as the brainliest!
-procklown
5 0
4 years ago
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To make them gas, you have to give liquids yes or no?
jeka94

Answer:

Yes

Explanation:

6 0
3 years ago
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