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blsea [12.9K]
3 years ago
11

How fast must a projectile moving horizontally travel so that the curve it follows matches the curve of Earth?

Physics
1 answer:
miss Akunina [59]3 years ago
6 0

about 8 km/s if it is close to earth.

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Ten students stand in a circle and are told to make a transverse wave. What best describes the motion of the students? Each stud
Bond [772]

Lifting hands and the down by one student at a time best describe the presentation of the transverse wave by students. Option D is correct.

<h3>What is a Transverse wave?</h3>
  • The wave in which the oscillation of particles is is perpendicular to the direction of energy transfer.

  • The students can make a transverse wave by raising their hands up and then down, one student at a time.

  • The raised hand represents the oscillation of particles while the sequence of the raising hand represents the direction of energy transfer.

Therefore, lifting hands and the down by one student at a time best describe the presentation of the transverse wave by students.

Learn more about Transverse waves:  

brainly.com/question/3813804

3 0
3 years ago
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Janet was pulling a box that weighed 20N across 5m. How much work did she exert?
Galina-37 [17]

Answer:

100nm

Explanation:

Work=Force×distance

=20×5

=100nm

6 0
2 years ago
Can someone explain the normal force? where does it come from? ...?
Vilka [71]
<span>The normal force is the support force exerted upon an object which is in contact with another stable object. For example, if a book is resting upon a surface, then the surface is exerting an upward force upon the book in order to support the weight of the book. The normal force in itseñf comes from the third law of Newton as a reactive force</span>
6 0
3 years ago
A force of 100N is applied to move an object a horizontal distance of 20m to the right. The work done by this force on the objec
horsena [70]
WORKDONE = FORCE * DISPLACEMENT
W=F*S
HERE, THE FORCE = 100N AND DISTANCE = 20M
WORKDONE = 100*20
WORKDONE=2000
ITS S.I UNIT IS JOULE OR J
SO, 2000J
5 0
3 years ago
Kyle has the mass of 54 kg and is jogging at a velocity of m/s. What is Kyle’s kinetic energy
inysia [295]

m = mass = 54 kg

v = velocity = 3 m/s

KE =  (1/2)*m*v^2

KE =  (1/2) * 54 * (3)^2

KE = 243 J

Hope this helps!



3 0
3 years ago
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