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prisoha [69]
4 years ago
15

Describe two ways alloys improve upon the properties of pure metal elements ?

Physics
1 answer:
IrinaVladis [17]4 years ago
6 0
A) Metal expand upon heating. B) Alloys expand less upon heating than elemental metals. C) Alloys expand more upon heating than elementals metals. D) The rate of the expansion of metals is directly proportion to the temperature to which it is heated
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Ling lives 2 miles from school. It took him 15 minutes to bike from school to home. The first half of the distance he biked at a
Fittoniya [83]

Explanation:

As we know that

time = distance/speed

The time used for firs half of the trip was

(1 mi)(12 mi/hour) = 1/12 hours = 5 minutes

The last half of the trip will took 10 minutes, 1/6 hour.

Speed = distance/ time

(1 mil) = (1/6h) = 6 mil/h

so the speed for last half of the trip was = 6mph

the average speed was

(2mil)(1/4 hour) = 8 mil/hour

So the ling's average speed was 8mph.

3 0
4 years ago
Heinrich hertz used properties of which type of wave to support the idea that light is also made of waves?.
Vsevolod [243]

Answer:

Hertz extended Maxwell's idea that light is produced by the interaction of electromagnetic fields. Waves produced a diffraction pattern. Results supported the wave theory of light.

7 0
2 years ago
Read 2 more answers
What is the function of a neutral operant?
zlopas [31]
B because it is correct
7 0
3 years ago
Read 2 more answers
A gene carries___ for a trait
san4es73 [151]

Answer:

Information

Genes carry the __information___ that determines your traits, which are features or characteristics that are passed on to you — or inherited — from your parents. Each cell in the human body contains about 25,000 to 35,000 genes.

Explanation:

6 0
3 years ago
A rock is projected from the edge of the top of a building with an initial velocity of 12.2 m/s at an angle of 73° above the hor
Brrunno [24]

Answer:

7 s

Explanation:

u = Initial velocity of rock = 12.2 m/s

\theta = Angle of throw = 73^{\circ}

x = Displacement in x direction = 25 m

Displacement in x direction is given by

x=u\cos\theta t\\\Rightarrow t=\dfrac{x}{u\cos\theta}\\\Rightarrow t=\dfrac{25}{12.2\times \cos73^{\circ}}\\\Rightarrow t=7\ \text{s}

Time taken to reach the ground is 7 s.

4 0
3 years ago
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