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uranmaximum [27]
3 years ago
15

A kicker punts a football from the very center of the field to the sideline 39 yards downfield.

Physics
1 answer:
MrRa [10]3 years ago
8 0

Answer:

L = 47.15 yards

∅ = 55.80°

Explanation:

Given

y = 39 yards

x = 53/2 yards

L = ?

We apply the formula

L = √(x²+y²)

L = √((53/2 yards)²+(39 yards)²)

L = 47.15 yards

The angle between the direction of the net displacement of the ball and the central line of the feild is obtained as follows

∅ = tg⁻¹(y/x)

∅ = tg⁻¹(39/(53/2)) = 55.80°

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A car with an initial speed of 4.30 m/s accelerates at a rate of 3 ms^2. What is the car's speed after 5 s?
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5 0
3 years ago
A circular loop of radius 11.9 cm is placed in a uniform magnetic field. (a) If the field is directed perpendicular to the plane
djverab [1.8K]

Answer:

(a). The strength of the magnetic field is 0.1933 T.

(b). The magnetic flux through the loop is zero.

Explanation:

Given that,

Radius = 11.9 cm

Magnetic flux \phi=8.60\times10^{-3}\ T m^2

(a). We need to calculate the strength of the magnetic field

Using formula of magnetic flux

\phi=BA\cos\theta

\phi=BA\cos0

\phi=BA

B=\dfrac{\phi}{A}

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B=\dfrac{8.60\times10^{-3}}{\pi\times(11.9\times10^{-2})^2}

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(b). If the magnetic field is directed parallel to the plane of the loop,

We need to calculate the magnetic flux through the loop

Using formula of flux

\phi=BA\cos\theta

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Hence, (a). The strength of the magnetic field is 0.1933 T.

(b). The magnetic flux through the loop is zero.

3 0
3 years ago
Read 2 more answers
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