3 years ago

What would be the difference between kinetic and potential energy

1 answer:

3 0

Answer:

Kinetic energy is the energy possessed by a body due to its motion. Potential energy is the energy possessed by a body due to its position.

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hichkok12 [17]

Answer:

100 million step

Explanation:

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2 years ago

Helicopter blades withstand tremendous stresses. In addition to supporting the weight of a helicopter, they are spun at rapid ra

BabaBlast [244]

Explanation:

It is given that,

Length of the helicopter, l = 3.1 m

The helicopter rotates, the length of helicopter will become the radius of circular path, r = 3.1 m

Angular speed of the helicopter, $\omega=280\ rev/min=29.32\ rad/s$

(a) The centripetal acceleration in terms of angular velocity is given by :

$a_c=r\times \omega^2$

$a_c=3.1\times (29.32)^2$

$a_c=2664.95\ m/s^2$

(b) Let v is the linear speed of the tip. The relation between the linear and angular speed is given by :

$v=r\times \omega$

$v=3.1\times 29.32$

v = 90.89 m/s

$\dfrac{v_{tip}}{v_{sound}}=\dfrac{90.89}{340}=0.267$

Hence, this is the required solution.

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3 years ago

Daniel has a sample of pure copper. Its mass is 89.6 grams (g), and its volume is 10 cubic centimeters (cm3). What’s the density

adell [148]

The correct answer is 8.96gl/cm^3*

5 0

3 years ago

The weight of a basketball with a mass of 0.5 kg is _N.

Mariana [72]

Answer:

4.9N

Explanation:

The formula for weight is F = ma.

You plug in the mass of 0.5kg and an acceleration of 9.8 to get

F = (0.5)(9.8)

F = 4.9N

3 0

3 years ago

A bullet with a mass of 0.020 kg collides with a 2.5 kg wooden block at

kondaur [170]

Answer:

151.2 m/s

Explanation:

m1 = 0.020 kg

m2 = 2.5 kg

vf = 1.2 m/s

m1v1 +m2v2 = (m1 +m2)vf

0.020v1 + 0 = (0.020 +2.5)(1.2)

---> 151.2 m/s

5 0

3 years ago

What would be the difference between kinetic and potential energy​

What would be the difference between kinetic and potential energy