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Ugo [173]
3 years ago
10

The cardiovascular system consists of

Physics
1 answer:
guapka [62]3 years ago
3 0
Consists of A. good luck
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What is the mass of an object going 25 m/s and has a momentum of 140<br> kg m/s?
slega [8]

Answer:

The answer would be 5.6 kg of a mass.

Explanation:

p= mv

m= p/ v

The explanation of that is:

momentum = mass× velocity

mass= momentum / velocity

Hope this helped!

7 0
3 years ago
A laser beam from Earth is reflected by a mirror placed on the Moon. If the speed of the beam is 3.00 x 108 m / s and the distan
Olin [163]

Answer:

1.27seconds

Explanation:

Speed = 324 m/s , Distance = 411.48m

Time = Distance/Speed

Time = 411.48/324 seconds

Time = 1.27seconds ( Ans)

3 0
3 years ago
A ladder of length 10 is leaning against a wall. The vertical wall is frictionless while the horizontal surface is rough. The an
bogdanovich [222]

Answer:

105.1N

Explanation:

According to the newton second law

\sum F_x = ma_x\\F_m - F_f = ma_x\\

Since the acceleration is zero, then;

F_m - F_f = 0\\Fm = F_f\\

Since;

F_m = mg sin \theta, \  hence \ F_f = mg sin \theta

Given the following

mass of ladder m = 14kg

acceleration due to gravity g = 9.8m/s²

θ = 50°

Substitute

F_f = 14(9.8)sin50\\F_f = 14(7.5072)\\F_f = 105.1N\\

Hence the magnitude of the friction force (in N) exerted on the ladder in the point of contact with the horizontal surface is 105.1N

8 0
3 years ago
Please help! What is physical property and what is chemical property?
sladkih [1.3K]
PHysical properties are properties that do not involve changes in the molecular level. In this case, malleability and magnetism are physical. 
Chemical properties involve changes to the substance at the molecular level or change its identity. In this case, reacting with oxygen and nonflammability is a chemical property. 
6 0
4 years ago
3. When a species changes over time
elena55 [62]

Answer:

It has adapted to its environment/surroundings. The adaptation aids in the organism's survival.

3 0
3 years ago
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