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sattari [20]
3 years ago
12

What describes how much matter is in a object??

Physics
1 answer:
ArbitrLikvidat [17]3 years ago
8 0
Mass and weight are two different things. The unit for mass is a gram. A nickel has the mass of about one gram. Objects<span> that take up space and have mass are called </span>matter<span>.</span>
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As a stunt for movie two cars are to collide with each other head on. The two cars are initially 125 apart. Car A is heading str
Tema [17]

Answer:

3.39724 seconds

23.0824792352 m, 101.917520765 m

13.58896 m/s

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

The equation of motion will be

s=ut+\dfrac{1}{2}at^2\\\Rightarrow 125=30\times t+\dfrac{1}{2}\times 4\times t^2\\\Rightarrow 2t^2+30t-125=0\ m

t=\frac{5\left(\sqrt{19}-3\right)}{2},\:t=-\frac{5\left(3+\sqrt{19}\right)}{2}\\\Rightarrow t=3.39724, -18.39724

The time at which the cars collide is 3.39724 seconds

s=ut+\dfrac{1}{2}at^2\\\Rightarrow s=0\times t+\dfrac{1}{2}\times 4\times 3.39724^2\\\Rightarrow s=23.0824792352\ m

Car B traveled 23.0824792352 m and Car A traveled 125-23.0824792352 = 101.917520765 m

v=u+at\\\Rightarrow v=0+4\times 3.39724\\\Rightarrow v=13.58896\ m/s

The speed of car B is 13.58896 m/s

4 0
3 years ago
Go around your house and hit (or tap) ten different objects. The objects should be different shapes and made of different materi
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Answer:

 

Explanation:

go around your house and tap random objects. For example, a sink. What noise did it make? was it loud or quiet? was it soft or hard? I hope this helps

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Answer:

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Explanation:

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