2 years ago

At the Sun Dagger in New Mexico, a dagger-shaped beam of sunlight pierces a spiral

Physics

1 answer:

nadya68 [22]2 years ago

7 0

Answer:

Explanation:

At noon on the summer solstice. The sun dagger was used to observe astrological readings in the ancient time

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A thin copper rod 1.0 m long has a mass of 0.050 kg and is in a magnetic field of 0.10 t. What minimum current in the rod is nee

slamgirl [31]

Answer:

$i = 4.9 A$

Explanation:

Force on a current carrying rod due to magnetic field is given as

$F = iLB$

here we know that

$i =$ current in the rod

$B = 0.10 T$

$L = 1.0 m$

now magnetic force is balanced by the weight of the rod

so we will have

$iLB = mg$

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attashe74 [19]

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What is the magnitude of the acceleration of an electron at a point where the electric field has magnitude 6377 n/c and is direc

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Use the magnitude acceleration formula .

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What is the angular momentum of a 0.25 kg mass rotating on the end of a piece of

finlep [7]

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1 year ago

A .140kg baseball traveling 35.0m/s strikes the catchers mit bringing the ball to rest, recoils backward 11.0cm what’s the avera

Juli2301 [7.4K]

Average force applied by the call on the glove = 780 N

Explanation:

mass of baseball=0.140 kg

initial velocity = Vi= 35 m/s

Final velocity=Vf= 0

distance traveled=11 cm= 0.11 m

using the kinematic equation Vf²= Vi²+ 2 a d

where a = acceleration

0²= 35²+ 2 a (0.11)

a=-5568.2 m/s²

Now force is given by F= ma

F= 0.140 (5568.2)

F=-780 N

The negative sign signifies that the force acts in the opposite direction.

so the average force= 780 N

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