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3 years ago

7

What is the answer to the question?

1 answer:

Masja [62]3 years ago

7 0

Answer:

Explanation:

The y component is measured by the horizontal component and the vertical component. Together they determine the magnitude of the vector. In this case, the y or vertical component is found by using the sine function.

<em>Formula</em>

Sin(angle) = vector resultant / y component component.

<em>Givens</em>

angle = 42 degrees.

vector = 419 degrees

<em>Solution</em>

sin(42) = y / 419 Multiply both sides by 419

419 * sin(42) = 419 * y / 419

y = 419 * 0.6691

y = 280.37

<em>Note</em>

The vector is pointing downward so technically the vertical component should be negative. I'm not sure what to tell you to answer. I would try - 280.37, but if the computer marks you wrong, try 280.37 (no minus sign).

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A crowbar makes our work easier by multiplying effort true or false

OLEGan [10]

Answer:

True

Explanation:

A crowbar makes our work easier by multiply effort because it belongs to first class lever.

And first class lever makes work easier by multiplying the effort

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3 years ago

A single loop of current is immersed in an externally applied uniform magnetic field of 3 Tesla oriented in the positive y direc

vlabodo [156]

Answer:

mu=12Tm^2

Explanation:

the magnetic moment mu of a single loop is given by:

$\mu = I A B$

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$\mu=(0.5A)(4m*2m)(3T)=12Tm^2$

hope this helps!!

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3 years ago

Estimate how long it took King Kong to fall straight down from the top of the Empire State Building (380 m high). Express your a

ankoles [38]

Answer:

It will take 8.80 sec to fall from the building

Explanation:

We have given height pf the state building h = 380 m

Initial velocity will be 0 m /sec

So u = 0 m/sec

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We have to find the fall time

According to second equation of motion $h=ut+\frac{1}{2}gt^2$

So $380=0\times t+\frac{1}{2}\times 9.8\times t^2$

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3 0

3 years ago

A circular 10-turn coil with a radius of 5.0 cm carries a current of 5 A. It lies in the xy plane in a uniform magnetic field =

Tju [1.3M]

Answer:

U = – 0.12J

Explanation:

Given N = 10 turns, I = 5A, r = 5×10-²m

B^ = 0.05 T iˆ+ 0.3 T kˆ

Magnitude of the magnetic field vector B = √(0.05²+0.3²) = 0.304T

Area = πr² = π(5×10-²)² = 7.85×10-³m²

Magnetic moment μ = NIA

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3 years ago

A clown at a birthday party has brought along a helium cylinder, with which he intends to fill balloons. When full, each balloon

Furkat [3]

Answer:

11

Explanation:

According to Boyle's law:

$P\times V=constant$

Thus,

$P_{cylinder}\times V_{cylinder}=n\times P_{balloon}\times V_{balloon}$

Where, n is the number of the balloons

From the question, it is given that:

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P = $1.2\times 10^5$ Pa

V = 0.040 m³

For cylinder:

P = $1.80\times 10^7$ Pa

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n = 11.625

<u>So, Maximum number of balloons = 11</u>

7 0

3 years ago