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alekssr [168]
3 years ago
12

What is the first step in the event of a fire in a building?

Physics
2 answers:
yuradex [85]3 years ago
8 0
I’m assuming D because it’s the most reasonable
lord [1]3 years ago
8 0

Answer:

B or C

Explanation:

i don't if I'm right or not

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Which planet is most likely to have acid rain? A. Mercury B. Venus C. Mars D. Uranus
timofeeve [1]
Its VENUS because the planet is basicily a hot planet
3 0
3 years ago
What us the formula of finding diameter
Over [174]

Answer:

The formula to find the diameter states the relationship between the diameter and the radius. The diameter is made up of two segments that are each a radius. Therefore, the formula is: Diameter = 2 * the measurement of the radius. You can abbreviate this formula as d=2r.

Explanation:

5 0
3 years ago
A 60 g ball of clay is thrown horizontally at 40 m/s toward a 1.5 kg block sitting at rest on a frictionless surface. the clay h
Bingel [31]
The solution for this problem is:
Let u denote speed. 

Equating momentum before and after collision: 
= 0.060 * 40 = (1.5 + 0.060) u 
= 2.4 = 1.56 u
= 2.4 / 1.56 = 1.56 u / 1.56
= 1.6 m / s is the answer for this question. This is the speed after the collision.
7 0
3 years ago
Calculate the change in length of concrete sidewalk (coefficient of linear expansion for concrete is 12*10^-6/celcius) that is 1
anyanavicka [17]

Answer:

The answer to your question is 5.4 cm

Explanation:

This problem refers to calculate the change in length in one dimension due to a change in temperature.

Data

α = 12 x 10⁻⁶

Lo = 150 meters

ΔT = 30 °C

Formula

                    ΔL/Lo = αΔT

solve for ΔL

                    ΔL = αLoΔT

Substitution

                    ΔL = (12 x 10⁻⁶)(150)(30)

Simplification

                    ΔL = 0054 m = 5.4 cm

7 0
3 years ago
How can you use a magnet to induce a current?
Furkat [3]
A coil of wire with a current flowing thru it becomes a magnet
3 0
3 years ago
Read 2 more answers
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