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MArishka [77]
3 years ago
12

Hi = L(1 – cos theta), theta = 40

Physics
1 answer:
nika2105 [10]3 years ago
4 0

Answer:A pendulum consists of a ball at the end of a massless string of length 1.4 m. The ball is released from rest with the string making an angle of 20 degrees with the vertical. What is the maximum speed of the pendulum?

Explanation: Have a great day and oh here is a little something to warn the great people. In the comments....

;)

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The net external force on a golf cart is 395.2 n north. if the cart has a total mass of 259.1 kg, what is the cart's acceleratio
yKpoI14uk [10]
Applying the Newton Second Law of motion that is F=ma
We have F=395.2N (North) and m=259.1Kg

Putting these values in the equation

395.2 = 259.1 x a than
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8 0
3 years ago
Henri Becquerel is credited with the discovery of:
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3 years ago
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For a certain ideal Carnot engine, the hot reservoir is 35°C higher than the cold reservoir. If this engine is to have an effici
lord [1]

Answer:

Temperature of the hot reservoir is 1540K

Explanation:

E= 1- \frac{T_{c}}[tex]{T_h}=308+{T_c}\\Efficiency of a carnot engine is given by the aboveTc=temperature of the cold reservoirTh= temperature of the hot reservoirK=273+ 35  (convert  35°C to kelvin)K=308k{T_h}={T_c}+308-----------------------(equation  1)20%=1-{T_c}/{T_h}

0.2=({T_c}+308-{T_c})/{T_c}+308

.2({T_c}+61.6=308

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5 0
3 years ago
Please someone help me.
katovenus [111]

Answer:

acceleration of the car is 3 m\s^2

Explanation:

from rest means the initial velocity (vi) is zero

time = 5s

final velocity (vf) = 15m\s

a = vf - vi \ t

a = (15-0) \ 5

a= 3 m\s^2

which means that the car is speeding up 3 meters every second

5 0
4 years ago
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4 0
4 years ago
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