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White raven [17]
3 years ago
11

Which of the following is a true statement regarding electron beams? Electron beams have so little mass that they are unaffected

by magnetic fields. Ernest Rutherford used electron beams to study electromagnetic fields in the late 19th century. The velocity of an electron is equal to the ratio of the electric field to the magnetic field. In a cathode-ray tube, a picture is produced by electric fields interacting with an electron beam.
Physics
1 answer:
seropon [69]3 years ago
7 0
The answer is <span>The velocity of an electron is equal to the ratio of the electric field to the magnetic field, the statement is true for electron beams as it is used in a vacuum environment.</span>
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Most people can throw a baseball farther than a bowling ball, and most people would find it less painful to catch a flying baseb
IRISSAK [1]

Based on Newton's first  and second law of motion most people would find it less painful to catch a flying baseball than a bowling ball flying at the same speed as the baseball because the mass of the baseball is smaller and will require smaller force to be stopped.

<h3>What is Newton's first law of motion?</h3>

Newton's first law of motion first law of motion states that a body at rest or uniform motion in a straight line will continue in that path unless acted upon by an external force.

Newton's first law of motion is also called law of inertia because it depends on mass of the object.

An object with a greater mass will require greater force to be stopped or get moving.

Based on Newton's first law of motion most people would find it less painful to catch a flying baseball than a bowling ball flying at the same speed as the baseball because the mass of the baseball is smaller and will require smaller force to be stopped.

Also according to Newton's second law of motion, the force applied to an object is proportional to the product of mass and acceleration of the object. Thus, a baseball with smaller mass will require smaller force to be stopped.

Learn more about Newton's first law of motion here: brainly.com/question/10454047

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6 0
2 years ago
Which percentage best describes the visibility of a waxing crescent moon
Rus_ich [418]

Answer:

It be 0,1% - 49.9%

This is because the new moon is 0.0% and the first quarter is 50%.

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How is the duration and intensity of daylight related to the suns apparent path?
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6 0
2 years ago
Ted Williams hits a baseball with an initial velocity of 120 miles per hour (176 ft/s) at an angle of θ = 35 degrees to the hori
lys-0071 [83]

Answer: the maximum heigth of the stadium at ist back wall is 151.32 ft

Explanation:

1. use the position (x) equation in parobolic movement to find the time (t)

565 ft = [frac{176 ft}{1 s\\}[/tex] * cos (35°)  * t

t= 3.92 s

2. use the position (y) equation in parabolic movement to find de maximun heigth  the ball reaches at 565 ft from the home plate.

y= [[frac{176 ft}{1 s\\}[/tex] * sen (35°) * 3.92 s] - \frac{32.2 ft/s^{2} *3.92 s^{2}  }{2}

y= 148.32 ft

3. finally add the 3 ft that exist between the home plate and the ball

148.32 ft + 3 ft = 151.32

6 0
3 years ago
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