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zubka84 [21]
3 years ago
14

The scientist who discovered that an electric current could be

Physics
1 answer:
galina1969 [7]3 years ago
8 0
<span>The scientist who discovered that an electric current could be
produced by moving a wire through a magnetic field is Thomas Alva Edison</span>
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A person absentmindedly walks off the edge of a tall cliff. They will fall 50 m into either
kifflom [539]

The man can survive, and he lands 12.1 m from the base of the cliff (into the lake)

Explanation:

The motion of the person is equivalent to the motion of a projectile, which consists of two separate motions:

- A uniform motion (constant velocity) along the horizontal direction

- An accelerated motion with constant acceleration (acceleration of gravity) in the vertical direction

We start by analyzing the vertical motion, to find the time it take for the person to reach the ground level. We can use the following suvat equation:

s=ut+\frac{1}{2}gt^2

where

s = 50 m is the vertical distance covered (the height of the cliff)

u = 0 is the initial vertical velocity

g=9.8 m/s^2 is the acceleration of gravity

t is the time of flight

Solving for t,

t=\sqrt{\frac{2s}{g}}=\sqrt{\frac{2(50)}{9.8}}=3.19 s

The person moved horizontally at a constant speed of

v_x = 3.8 m/s

So, the horizontal distance covered by the man during his flight will be

d_x = v_x t = (3.8)(3.19)=12.1 m

So, the man will land on the lake (which starts from 12 m), so he can survive.

Learn more about projectile motion:

brainly.com/question/8751410

#LearnwithBrainly

8 0
2 years ago
Please help.................​
Goryan [66]

Answer:

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7 0
2 years ago
Read 2 more answers
The contribution of Tycho Brahe was primarily his
mihalych1998 [28]
Tycho Brahe ( 1546 - 1601 ) was a Danish astronomer known for his accurate astronomical and planetary observations. Tycho tried to produce a model with the best of both Ptolemy ( earth-centered solar system ) and Copernicus ( sun-centered solar system ).
Answer: B ) observation.
3 0
3 years ago
1. (15 points) Small cart is rolling down an inclined track and accelerating. It fires a ball straight out of the cannon as it m
Elena L [17]

Answer:

Explanation:

This problem can be solved with the conservation of the momentum.

If the ball is fired upward, the momentum before and after the ball is fired must conserve. Hence, the speed of the ball is the same that the speed of the car just in the moment in wich the ball is fired.

Hence, the result depends of the acceleration of the car. If the change in the speed is higher than the speed of the ball, it is probably that the ball will be behind the car or it will come back to the car.

If the ball is fired forward, and if the change in the speed of the car is not enogh, the ball will be in front of the car.

HOPE THIS HELPS!!

5 0
3 years ago
A wave travels with speed 200 m/s. Its wave number is 1.5 rad/m. What are its (a) wavelength and (b) frequency
Vladimir [108]

Answer:

(a)

Explanation:

5 0
2 years ago
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