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3 years ago

8

how do i write this to where it is true? in the blue is a statement and the attached piece is false so i have to make it true an

d im struggling

1 answer:

OlgaM077 [116]3 years ago

4 0

Answer:

cross out the false piece in blue and write the true piece in red

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What does the magnitude of centripetal acceleration depend on ?

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Explanation:

Centripetal acceleration ac is the acceleration experienced while in uniform circular motion. It always points toward the center of rotation. It is perpendicular to the linear velocity v and has the magnitude ac=v2r;ac=rω2 a c = v 2 r ; a c = r ω 2 .

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3 years ago

Definition of force equation

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Explanation:

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3 years ago

Two ping pong balls have been painted with metallic paint and charged by contact with an Van de Graaff generator. The charge on

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Answer:

0.035 N

Explanation:

Parameters given:

Charge q1 = -3.31x10^(-7) C

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3 years ago

Read 2 more answers

What is the name of the element with 83 protons and 80 electrons?

dmitriy555 [2]

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3 years ago

A 91.5 kg football player running east at 3.73 m/s tackles a 63.5 kg player running east at 3.09 m/s. what is their velocity aft

PIT_PIT [208]

Their velocity afterward is v=3.467 m/s

Explanation:

Given:

Mass of the first football player= 91.5 kg

Initial velocity of the football player 3.73 m/s

Mass of second football player=63.56 kg

Initial velocity of the second football player=3.09 m/s

To find:

Final velocity of both players=?

Solution:

According to the law of conservation of momentum,

Initial momentum =final momentum

mathematically represented as

$m_1u_1+m_2u_2=m_1v_1+m_2v_2$ ...........................(1)

where

$u_1$ =intial velocity of the football player

$u_2$ = inital velocity of second football player

$v_1$ =finall velocity of the first football player

$v_2$ =final velocity of second football player

after tackling , both the football players moves with the same velocity,

so $v_1=v_2=v$

Hence equation (1) becomes

$m_1u_1+m_2u_2=(m_1+m_2)v$

$v=\frac{m_1u_1+m_2u_2}{(m_1+m_2)}$

now substituting the values,

$v=\frac{(91.5\times+3.73)+(63.5\times3.09)}{(91.5+63.5)}$ $v=\frac{(341.29+196.210)}{155}$

$v=\frac{537.5}{155}$

v=3.467 m/s

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4 years ago