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choli [55]
3 years ago
8

1. A 2.10 m rope attaches a tire to an overhanging tree limb. A girl swinging on the

Physics
1 answer:
musickatia [10]3 years ago
3 0

Answer:

29.6 kg

Explanation:

Centripetal force = mass × centripetal acceleration

F = m v² / r

88.0 N = m (2.50 m/s)² / 2.10 m

m = 29.6 kg

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If the masses of objects increase and their distance from each other remains the same, then the force of gravity between the two
skelet666 [1.2K]

Answer:

the formula for the force of gravity depends  inversely of the distance and directly of the masses.

F_{G} =G\frac{M_{1} M_{2}}{R^{2}}

This means that if the masses increase and their distance remains the same the force will increase proportionally.

4 0
3 years ago
PLEASE HELP ME GET THIS RIGHT
alukav5142 [94]

Explanation:

I'm not sure, but I would go for the more than A since its orbital speed is at its fastest and the sweep occurs in about the same period of days.

7 0
2 years ago
What is electron affinity?​
Andrews [41]

Answer:

The electron affinity of an atom or molecule is defined as the amount of energy released when an electron is attached to a neutral atom or molecule in the gaseous state to form a negative ion.

4 0
3 years ago
Two acrobats flying through the air grab and hold onto each other in midair as part of a circus act.One acrobat has a mass of 60
earnstyle [38]

Answer:

1.36m/s

Explanation:

We are given that

Mass of one acrobat,m_1=60 kg

Mass of another acrobat,m_2=50 kg

v_2=-3 m/s

v_1=5 m/s

We have to find their  velocity immediately after they grab  onto each other.

The collision between two acrobat is inelastic

According to law of conservation of momentum

m_1v_1+m_2v_2=(m_1+m_2)V

Substitute the values

60\times 5+50(-3)=(60+50)V

300-150=110V

V=\frac{300-150}{110}=1.36m/s

4 0
3 years ago
A child riding a bicycle at 5 meters per seconds accelerates at 2.0 meters per second for 4.0 seconds. What is the child's speed
slega [8]

Explanation:

Using Kinematics,

We have v = u + at.

=> v = (5m/s) + (2.0m/s²)(4.0s)

=> v = 13m/s.

Hence the child's speed is now 13m/s.

5 0
3 years ago
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