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3 years ago

A motorcycle at a stoplight takes 4.22 seconds to accelerate 28.0 m/s after the light turns green. what is the acceleration?

Physics

1 answer:

stira [4]3 years ago

4 0

Acceleration=velocity/time
acceleration=28/4.22
therefore, acceleration=6.64

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If the net force acting on an object is not zero, then the object is definitely

balu736 [363]

Answer:

Explanation:

Since the net force is changing, and not the speed, it is C

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3 years ago

A fan spins at 6.0 rev/s. You turn it off, and it slows at 1.0 rev/s2. What is the angular displacement before it stops

Komok [63]

Answer:

Angular displacement before it stops = 18 rev

Explanation:

Given:

Speed of fan w(i) = 6 rev/s

Speed of fan (Slow) ∝ = 1 rev/s

Final speed of fan w(f) = 0 rev/s

Find:

Angular displacement before it stops

Computation:

w(f)² = w(i) + 2∝θ

0² = 6² + 2(1)θ

0 = 36 + 2θ

2θ = -36

Angular displacement before it stops = -36 / 2

θ = -18

Angular displacement before it stops = 18 rev

4 0

3 years ago

What is the angle of reflection?

hoa [83]

I can guarantee you that it is not
C.<span>the angle that the incident ray makes with a line drawn perpendicular to the reflecting surface I hope this somewhat helps</span>

4 0

3 years ago

(i) Candidates and parties with a lot of money may not be sure of their victory but they do enjoy a big and unfair advantage ove

madam [21]

Answer:

Challenges to a fair election

Explanation:

All the point mention or given in the question are challenges to a fair and free election process.

Election may be defined as an procedure to select or elect any person as a member of an organization or as an official. Here people cast their vote to their favorite person whom they want to choose and elect as their official. Though election is a just and fair process but there are several challenges to it.

It is seen that parties with more money try to influence their voters. Some candidates may have contact with the criminals and they use these contacts to play unfair means and try to win the election. While there are some families which have a dominance in the political parties and they try to win their family members in the election.

7 0

3 years ago

6. A 15 kg box is given an initial push so that it slides across the floor and comes to a stop.

Illusion [34]

Answer:

(a) Frictional force = 44.145 N

(b) Acceleration = -2.943 m/s²

(c) Distance covered = 1.529 m

Explanation:

Given:

Mass of the box is, $m=15\ kg$