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BartSMP [9]
3 years ago
6

A tennis ball has a mass of 0.058 kg and is moving to the right at 40 m/s. What is the momentum

Physics
1 answer:
Arte-miy333 [17]3 years ago
4 0

Explanation:

Mass = 0.058Kg

Velocity = 40m/s

Momentum P = ?

P = mv

P = 0.058 × 40

P = 2.32Kgm/s

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ioda

Answer:

9.45 kWh

Explanation:

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E = 900 W × (1.5 h/day × 7 day)

E = 9450 Wh

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3 0
3 years ago
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

Using the conservation of energy theorem

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

m*g*h=\frac{1}{2}*m*(r*w)^2 +\frac{1}{2}*[\frac{1}{2} *m*r^2]*w^2

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Solve to w'

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

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7 0
3 years ago
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abruzzese [7]
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6 0
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lapo4ka [179]

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        where

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4 0
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Alex777 [14]

Answer:

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8 0
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