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4 years ago

12

The chef at the infamous Fattening Tower of Pizza tosses a spinning disk of uncooked pizza dough into the air. The disk becomes

wider during its flight, while its rotational speed

1 answer:

Bess [88]4 years ago

5 0

Rotational speed would increase...

v = omega . r

which means it's directly proportional to radius...

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A flat coil having 160 turns, each with an area of 0.20 m 2, is placed with the plane of its area perpendicular to a magnetic fi

S_A_V [24]

Answer:

10.2 Watt

Explanation:

$N$ = number of turns in flat coil = 160

$A$ = area = 0.20 m²

B₀= initial magnetic field = 0.40 T

$B$ = final magnetic field = - 0.40 T

Change in magnetic field is given as

ΔB = B - B₀ = - 0.40 - 0.40 = - 0.80 T

$t$ = time taken for the magnetic field to change = 2.0 s

Induced emf is given as

$E = \frac{- N A \Delta B}{t}$

$E = \frac{- (160) (0.20) (- 0.80)}{2}$

$E$ = 12.8 volts

$R$ = Resistance of the coil = 16 Ω

Power is given as

$P = \frac{E^{2}}{R}$

$P = \frac{(12.8)^{2}}{16}$

$P$ = 10.2 Watt

6 0

3 years ago

A 250 kg car has 6875 kg•m/s of momentum. What is it’s velocity?

liraira [26]

Answer:

v = 27.5 m/s

Explanation:

p = m × v

6,875 = 250 × v

250v = 6,875

v = 6,875/250

v = 27.5 m/s

5 0

3 years ago

A large blue marble of mass 3.5 g is moving to the right with a velocity of 15 cm/s. The large marble hits a small red marble of

neonofarm [45]

I hope this would help you

3 0

3 years ago

In a hydroelectric power plant, the shaft that connects the turbine to the generator has become inoperable. As a result, _____.

Lynna [10]

<span>Electricity will not be created.</span>

5 0

4 years ago

Read 2 more answers

Work is done when : 11 point)

LuckyWell [14K]

I think it’s the first one

4 0

3 years ago