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Dmitry_Shevchenko [17]
3 years ago
13

A velocity vs. time graph is shown. A graph titled Velocity versus Time shows time in seconds on the x axis, numbered 0 to 5, ve

locity in meters per second on the y axis, numbered 0 to 20. A line starts at the origin and ends at (5, 20). What is the acceleration of the object?
Physics
2 answers:
masya89 [10]3 years ago
8 0

Answer:

a+4 m ...

Explanation:

Lisa [10]3 years ago
5 0

Answer:

a = 4 \frac{m}{s {}^{2} }

Explanation:

u for velocity

t for time

a for acceleration

u = a \times t \\ 20 = a \times 5 \\ a =  \frac{20}{5}  \\ a = 4

That's it! Hope I helped!

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Objects falling through air experience a type Of friction called ____
DaniilM [7]

Answer: That's air resistance.

Explanation: Well, air resistance is an upward force exerted on falling objects.

( I hope this helped <3 )

6 0
4 years ago
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What is the public storm warning signal that carries winds of 30 to 60 km/hr and can cause no damage to very light damage
Shkiper50 [21]

Answer:

I know u need this

Explanation:

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7 0
3 years ago
What is the ball's acceleration?
muminat

Answer:

g, downward

Explanation:

It is given that, a baseball is thrown straight upward. The force acting on the stone is force of gravity. It is moving under the action of gravity. We know that the force of gravity always acts in a downward direction.

At the highest point, the velocity of the stone will be equal to 0. It will move will constant acceleration equal to g and it always acts in downward direction.

Hence, the correct option is (e) "downward direction".

5 0
3 years ago
Two insulated wires, each 2.64 m long, are taped together to form a two-wire unit that is 2.64 m long. One wire carries a curren
nikklg [1K]

Answer:

4.77\ \text{A}

Explanation:

F = Magnetic force = 4.11 N

I_n = Net current

I_2 = Current in one of the wires = 7.68 A

B = Magnetic field = 0.59 T

\theta = Angle between current and magnetic field = 65^{\circ}

l = Length of wires = 2.64 m

I = Current in the other wire

Magnetic force is given by

F=I_nlB\sin\theta\\\Rightarrow I_n=\dfrac{F}{lB\sin\theta}\\\Rightarrow I_n=\dfrac{4.11}{2.64\times 0.59 \sin65^{\circ}}\\\Rightarrow I_n=2.91\ \text{A}

Net current is given by

I_n=I_2-I\\\Rightarrow I=I_2-I_n\\\Rightarrow I=7.68-2.91\\\Rightarrow I=4.77\ \text{A}

The current I is 4.77\ \text{A}.

8 0
3 years ago
In order to be a good conductor, a martial needs to...
Travka [436]
B-allow electrons to flow
8 0
3 years ago
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