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elixir [45]
3 years ago
5

!!!HELP ASAP!!!in witch situation is work being done?theres a photo added.​

Physics
1 answer:
Arturiano [62]3 years ago
8 0
C..............................
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Where on this diagram does the ball have the highest point of gravitational potential energy?
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It should be at the very top since it has more space to fall which gives it more potential energy
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Which of the following is not an element of installment credit?
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I believe it's A. An installment credit has an interest rate, repayment terms and fees, and fixed payment.

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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

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

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

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

Solve to w'

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

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

w=\sqrt{\frac{4*9.8m/s^2*3.25m}{3*(0.235m)^2}}

w=27.74rad/s

v=27.74rad/s*0.235m=6.51m/s

7 0
3 years ago
What is the power of a student that has done a work of 10 joules in 10 seconds​
Alla [95]

Answer:

1 Watt

Explanation:

P=W/t

P=10/10

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3 years ago
A block of mass 3. 0 kg is hung from a spring, causing it to stretch 12 cm at equilibrium, as shown above. The 3. 0 kg block is
QveST [7]

Answer: 32 cm

Explanation:

4 0
2 years ago
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