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nasty-shy [4]
4 years ago
7

Helpppppppppp pppppplzzzzzzzzzzzzzzzzzzzzzzzzz

Physics
2 answers:
aleksandr82 [10.1K]4 years ago
8 0
The answer is reflection.
alina1380 [7]4 years ago
4 0
D bend I hope that helped you
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Lava is rock that has undergone a physical change and has liquefied. What is known about this change?
RideAnS [48]
It was super heated to turn in to a liquid
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3 years ago
What happens when your wearing socks and you shuffle across a carpet then touch a door knob?
natali 33 [55]

Answer:

You build up kinetic energy and you get shocked this happens because static has built up from the socks and the rug. This also happens when you rub a balloon on your head or shuffle across a trampoline with socks on.

Explanation:

brainliest plz

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Why did she use an red infra lamp
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To act as the Sun' was accepted but if you put 'sunlight' alone it was not accepted. The examiner wanted you to state that the infra red radiation was needed to warm up the water.
4 0
3 years ago
During a firework display, a shell is shot through the air with an initiak speed of 70 m/s at an angle of 75° above the horizont
ladessa [460]

Answer:

241.24m

Explanation:

The height at which the shell explodes will be at the maximum height. In projectile motion, maximum height formula is expressed as:

H = u²sin²θ/2g

u is the initial speed = 70m/s

θ the angle of launch = 75°

g is the acceleration due to gravity = 9.81m/s²

Substitute the values into the formula and get H

H = 70²(sin75°)/2(9.81)

H = 4900sin75°/19.62

H = 4900*0.9659/19.62

H = 4733.037/19.62

H = 241.24m

Hence the height at which the shell explodes is 241.24m

4 0
3 years ago
Question: A 12 volt car battery is connected to a 3 ohm brake light. What is the current carrying energy to the lights?
Natali [406]

Answer:

4 A

Explanation:

V = IR, where V=voltage, I=current, R=resistance. This is Ohm's Law. (remember that for units V = volts, Ω = ohms, A = amperes.)

V = IR

12 V = I * 3 Ω

12/3 = I

<u>I = 4 A</u>

8 0
4 years ago
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