2 years ago

Plzzzzz helppppp plzzzzzzzzzzzzzzzzzzzzzzz

Physics

2 answers:

QveST [7]2 years ago

8 0

Answer:

A. Refraction

Explanation:

Helen [10]2 years ago

6 0

Answer:

Explanation:

ap3x

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A uniform solid disk of mass 5.00 kg and diameter 47.0 cm starts from rest and rolls without slipping down a 40.0 ∘ incline that

saveliy_v [14]

Answer:

The speed it reaches the bottom is

$v=6.51m/s$

Explanation:

Given: $m=5.0kg$ , $r=47cm\frac{1m}{100cm}=0.47m$

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$U_i=K_E+K_{ER}$

$m*g*h=\frac{1}{2}*m*v^2+\frac{1}{2}*I*w^2$

$v=r*w$ , $I=\frac{1}{2}*m*r^2$

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Solve to w'

$w^2=\frac{4*g*h}{3*r^2}$

$h=x*sin(30)=6.5m*sin(30)=3.25m$

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$w=27.74rad/s$

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3 years ago

A bat hits a moving baseball. If the bat delivers a net eastward impulse of 1.3 N-s and the ball starts with an initial horizont

Georgia [21]

Answer:

$141.30grams$

Explanation:

First, denote our known values;

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Mass is impulse divided by change in velocity:

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3 years ago

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Mazyrski [523]

Answer:

Explanation:

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3 years ago

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