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3 years ago

Which kind of storm do you think would cause damage over a larger area A cyclone or a tornado why

Physics

2 answers:

wlad13 [49]3 years ago

5 0

Answer:

becuase it is big

Explanation:

notsponge [240]3 years ago

4 0

Because its.... big!

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An ideal transformer has 60 turns in its primary coil and 360 turns in its secondary coil. If the input rms voltage for the 60-t

Ber [7]

Answer:

Voltage of the secondary coil is 720 volts.

Explanation:

Number of turns in primary coil, N₁ = 60

Number of turns in secondary coil, N₂ = 360

Input rms voltage of primary coil, V₁ = 120 V

We have to find the output rms voltage of the secondary coil. The relationship between the number of coil and voltage is given by :

$\dfrac{N_1}{N_2}=\dfrac{V_1}{V_2}$

$\dfrac{60}{360}=\dfrac{120}{V_2}$

V₂ = output rms voltage of the secondary coil.

After solving above equation, we get :

V₂ = 720 V

Hence, the output rms voltage of the secondary coil is 720 volts.

4 0

4 years ago

An electric motor rotating a workshop grinding wheel at a rate of 1.31 ✕ 102 rev/min is switched off. Assume the wheel has a con

antoniya [11.8K]

(a) 4.03 s

The initial angular velocity of the wheel is

$\omega_i = 1.31 \cdot 10^2 \frac{rev}{min} \cdot \frac{2\pi rad/rev}{60 s/min}=13.7 rad/s$

The angular acceleration of the wheel is

$\alpha = -3.40 rad/s^2$

negative since it is a deceleration.

The angular acceleration can be also written as

$\alpha = \frac{\omega_f - \omega_i}{t}$

where

$\omega_f = 0$ is the final angular velocity (the wheel comes to a stop)

t is the time it takes for the wheel to stop

Solving for t, we find

$t=\frac{\omega_f - \omega_i }{\alpha}=\frac{0-13.7 rad/s}{-3.40 rad/s^2}=4.03 s$

(b) 27.6 rad

The angular displacement of the wheel in angular accelerated motion is given by

$\theta= \omega_i t + \frac{1}{2}\alpha t^2$

where we have

$\omega_i=13.7 rad/s$ is the initial angular velocity

$\alpha = -3.40 rad/s^2$ is the angular acceleration

t = 4.03 s is the total time of the motion

Substituting numbers, we find

$\theta= (13.7 rad/s)(4.03 s) + \frac{1}{2}(-3.40 rad/s^2)(4.03 s)^2=27.6 rad$

6 0

3 years ago

Fruit and write your thought about it

krek1111 [17]

Answer:

which is the most suitable place for growing large amounts of sugar cane

6 0

3 years ago

Along the remote Racetrack Playa in Death valley, California,stones sometimes gouge out prominent trails in the desert floor, as

MArishka [77]

Answer:

Explanation:

given ;

coefficient of kinetic friction = 0.80

mass m = 26kg

considering the force acting in horizontal direction and from newton's 2nd law of motion;

for vertical motion = Fn - mg = 0

for horizontal motion = F = ma + miu mg = m( a + miu.g)

but a = 0

therefore, F = miu mg where g = 9.81m/s^2

plugging the values into the equation;

F = 0.80 x 9.81 x 26

Horizontal force = 204.05N

3 0

3 years ago

Find the Gravitational Potential at a point on the earth’s surface. Take mass of earth as 5.98 X 10 24 kg, its radius as 6.38 X

kherson [118]

Answer:

$-6.25 x 10^7 J/Kg\\\\$

Explanation:

The final answer is $-6.25 x 10^7 J/Kg\\\\$

5 0

3 years ago