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stich3 [128]
2 years ago
15

What is the average speed in the last 1s? With Explanation Please

Physics
1 answer:
I am Lyosha [343]2 years ago
5 0

this \: is \: my \: attachment \: answer \: hope \: its \: helpful \: to \: you

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If the shoe has less mass, it will experience _______________ (more, less, the same) friction as it would with more mass.
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More I’m pretty sure but no promises
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3 years ago
A ball rolls off an 8.0 m high building and strikes the ground 5.0 m away from the base of the building. How fast was the ball r
HACTEHA [7]

Answer: horizontal speed is 3.9 m/s

Explanation: when ball starts to drop, its vertical speed v0 is zero.

We can calculate dropping time from s = v0t +0.5gt².

Dropping time t= √(2s/g)= √((2·8.0 m)/9.81 m/s²)= 1.277 s

Because ball travels horizontal distance s= 5.0 m

HorizontalSpeed v = s/t = 5.0 m/1.277s= 3,915 m/s

4 0
2 years ago
Find the acceleration of a car that can go from rest to 50 km/h in 13 s
ziro4ka [17]

The acceleration of the car is 1.067 m/s^{2}.

<u>Explanation:</u>

Acceleration is the measure of change in velocity experienced by any object for a given time period. So it is determined as the ratio of difference in the velocity to the time period.

As here the initial velocity is stated as zero, so u = 0. And the final velocity is termed as 50 km/h. Then we have to determine the acceleration in 13 s. So here we have to convert the units as common units. Thus, 50 km/h should be converted to m/s as \frac{50*1000}{3600}=13.88 m/s

So now, the initial velocity u = 0 and final velocity v = 13.88 m/s and the time period is given as t = 13 s.

Acceleration = \frac{v-u}{t}=\frac{13.88-0}{13}=1.067 m/s^{2}

So the acceleration of the car is 1.067 m/s^{2}.

8 0
3 years ago
Do transistors amplfy a.c or d.c<br>​
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Explanation:

thet amplify DC, because of the voltage ( small current input signal)

5 0
3 years ago
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Marta_Voda [28]
Objects with the same charge repels each other whereas objects with opposite charges attract each other.

Hope this helps!
3 0
3 years ago
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