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andrezito [222]
3 years ago
6

Which property describes an electromagnetic wave and not a mechanical wave?

Physics
1 answer:
Andrews [41]3 years ago
4 0
B. Travels in a Vacuum.

Electromagnetic have the ability to travel in a vacuum unlike mechanical wave.
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how does the size of objects impact the pull of gravity between Earth and a baseball thrown into the air
Reil [10]
it's how much it weighs and how much force is pushing on it like a egg if i drop it the weigh can cause it to break and how much force the gravity is pushing on it.
3 0
3 years ago
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The graph illustrates the activity level of three common digestive enzymes, across a range of pH values. Which enzyme is likely
vaieri [72.5K]

Answer:

(A) Pepsin

Explanation:

From the graph it is clear that pepsin is the only enzyme which works in highly acidic condintion in the digestive system.

  • less than 7 the liquid is acidic
  • above 7 the liquid is basic
  • at 7 the liquid is neutral

It has an optimum pH of about 1.5 at which its activity level is 8.5 as shown in graph.

7 0
3 years ago
Bob rides his bike with a constant speed of 10 miles per hour. How long will he take to travel a distance of 15 miles?
ICE Princess25 [194]

{\underline{\pink{\textsf{\textbf{ Answer : }}}}}

➡ 150hrs.

{\underline{\pink{\textsf{\textbf{Explanation : }}}}}

➡ Time = distance × speed

➡ Time = 15*10

➡ Time = 150hrs ans.

7 0
2 years ago
Lake point tower in chicago is the tallest apartment building in the united states. suppose you take the elevator from street le
notka56 [123]

Using the idea of work done under gravity, the height of the building is 187 m.

<h3>Work done in a gravitational field</h3>

We must recall that the work done in a gravitational field is given by; mgh

m= mass

g = acceleration due to gravity

h = height

mass = 60.0 kg

Workdone = 1.15x10^5 J

W = mgh

h = W/mg

h =  1.15x10^5 J/60.0 kg * 9.8 ms-2

h = 187 m

Learn more about work done: brainly.com/question/13662169?

7 0
2 years ago
A soccer ball is kicked with a velocity of 8 m/s at an angle of 23°. what is the ball's acceleration in the vertical direction o
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Regardless of the speed of the ball or its angle, once it has left the kickers foot it's acceleration is always g downward. -9.81m/s^2
3 0
3 years ago
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