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Leona [35]
2 years ago
8

Timmy drove 2/5 of a journey at an average speed of 20 mph.

Physics
2 answers:
Oxana [17]2 years ago
8 0

Answer:

4 hr

Explanation:

Yes

mixer [17]2 years ago
5 0

Answer:

4hr

Explanation:

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Why do metals make good electrical conductors?
alexdok [17]

Answer:

Explained

Explanation:

Metals are good conductors of electricity because they contain free electrons in their atoms. The outer shell of atom's of metal have free electrons. These free electrons are responsible of electrical conductivity of metals. These electron are not bounded by the attraction forces of the nucleous. They are free to wonder in lattice of positive ion and thus allow electrical conductivity.

3 0
2 years ago
Someone help me please!!
patriot [66]
Pretty sure it's C) condensation because all of the others required heat to be added
7 0
2 years ago
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The board sandwiched between two other boards shown below weighs 87.5 n. if the coefficient of friction between the boards is 0.
IRINA_888 [86]
Refer to the diagram shown below.

W = 87.5 N, the weight of the sandwiched board.
μ = 0.622, the static coefficient of friction.

From the free body diagram of the sandwiched board, obtain
2μF = W
F = W/(2μ) = 87.5/(2*0.622) = 70.34 N

Answer: 70.34 N

8 0
2 years ago
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Will Mark Brainiest! Only two questions for today. :) tysm for all who answer! ♥
USPshnik [31]
1.) Sexual reproduction increases genetic diversity in many species of plants and animals because of meiosis. During meiosis, crossing-over occurs and changes up genes in the chromosomes. Each gamete (sperm and egg), have half the chromosomes (23) and combine to have 46 chromosomes. This is how you get traits from your parents that make you different.

2.) Asexual reproduction occurs when a single parent copies its own DNA and genes and grows an identical version or clone of itself.
7 0
2 years ago
If a ball is thrown into the air with a velocity of 42 ft/s, its height (in feet) after t seconds is given by y = 42t − 16t2. Fi
krek1111 [17]
Y = 42t - 16t^2

velocity = vt = dy/dt

= 42 - 32t

v(1) = 42 - 32

= 10 ft/s

Hope this helps
7 0
3 years ago
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