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Margarita [4]
4 years ago
7

Which question cannot be answered through making measurements?

Physics
1 answer:
Bond [772]4 years ago
5 0
A. is the answer for this question
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A baseball pitcher throws a ball horizontally at a speed of 34.0 m/s. A catcher is 18.6 m away from the pitcher. Find the magnit
Sidana [21]

To develop this problem, it is necessary to apply the concepts related to the description of the movement through the kinematic trajectory equations, which include displacement, velocity and acceleration.

The trajectory equation from the motion kinematic equations is given by

y = \frac{1}{2} at^2+v_0t+y_0

Where,

a = acceleration

t = time

v_0 = Initial velocity

y_0 = initial position

In addition to this we know that speed, speed is the change of position in relation to time. So

v = \frac{x}{t}

x = Displacement

t = time

With the data we have we can find the time as well

v = \frac{x}{t}

t = \frac{x}{v}

t = \frac{18.6}{34}

t = 0.547s

With the equation of motion and considering that we have no initial position, that the initial velocity is also zero then and that the acceleration is gravity,

y = \frac{1}{2} at^2+v_0t+y_0

y = \frac{1}{2} gt^2+0+0

y = \frac{1}{2} gt^2

y = \frac{1}{2} 9.8*0.547^2

y = 1.46m

Therefore the vertical distance that the ball drops as it moves from the pitcher to the catcher is 1.46m.

6 0
3 years ago
Which two of the following involve the same energy transfer. Assume that the same substance and the same mass is involved in all
Elanso [62]
B. evaporation
c. condensation

They are opposite processes that involve the same transfer of energy
3 0
3 years ago
4. The result is that a(n)<br> electric current is induced<br> PLA
andrew11 [14]
The correct answer is:-

alternating.
3 0
3 years ago
Heres a random question just for fun and out. of boredom ok so who started the nasa program? and why? what made him want to do t
Pachacha [2.7K]
Eisenhower started the NASA project to develop technology for military application.
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3 years ago
Adog has a mass of 12 kg. What is its weight? Round your answer to the nearest whole number
love history [14]

Answer:

26.5

Explanation:

3 0
3 years ago
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