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liberstina [14]
3 years ago
15

A 75-kg piano is hosted on a crane and delivered throughout the window of a 6th story apartment (20 meters above ground). What i

s the potential energy of the piano?
Engineering
1 answer:
Sonja [21]3 years ago
8 0

Answer:

  14,700 J

Explanation:

PE = Mgh = (75 kg)(9.8 m/s²)(20 m) = 14,700 J

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Choose the statement that correctly describes the circuit below. image is not found a. The above circuit is invalid because nMOS
OleMash [197]

The statement that correctly describes the circuit is the circuit provided is an example of a CMOS circuit.

<h3>What is a CMOS circuit?</h3>

The CMOS circuit is a term that is often known as "Complementary Metal Oxide Semiconductor."

This is known to be a machine that create integrated circuits and it is one that is often seen a a lot of electronic component and as such, the the circuit provided is an example of a CMOS circuit.

Learn more about circuit  from

brainly.com/question/2969220

#SPJ1

8 0
2 years ago
A cannon ball is fired with an arching trajectory such that at the highest point of the trajectory the cannon ball is traveling
ELEN [110]

Answer:

The radius of curvature is 979 meter

Explanation:

We have given velocity of the canon ball v = 98 m/sec

Acceleration due to gravity g=9.81m/sec^2

We know that at highest point of trajectory angular acceleration is equal to acceleration due to gravity

Acceleration due to gravity is given by a_c=\frac{v^2}{r}, here v is velocity and r is radius of curvature

So \frac{98^2}{r}=9.81

r = 979 meter

So the radius of curvature is 979 meter

8 0
3 years ago
Q5) Write C++ program to find the summation of sines of the even values that can be divided by 7 between -170 and -137.
Minchanka [31]

Answer:

In C++:

#include <iostream>

#include <cmath>

using namespace std;

int main(){

 double total = 0;

 for(int i = -170; i<=-130;i++){

     if(i%2 == 0 && i%7==0){

         double angle = i*3.14159/180;

         total+=sin(angle);      }  }

 cout<<"Total: "<<total;

 return 0; }

Explanation:

This initializes the total to 0

 double total = 0;

This iterates from -170 to - 130

 for(int i = -170; i<=-130;i++){

This checks if the current number is even and is divided by 7

     if(i%2 == 0 && i%7==0){

This converts the number from degrees to radians

         double angle = i*3.14159/180;

This adds the sine of the number

         total+=sin(angle);      }  }

This prints the calculated total

 cout<<"Total: "<<total;

5 0
3 years ago
Decide whether or not the Final Value Theorem is applicable to the following functions. If not, indicate why you cannot apply it
LUCKY_DIMON [66]

Answer:

a) Yes applicable, x(∞) = 0

b) Yes applicable, x(∞) = 0

Explanation:

Final Value Theroem indicates that final value of x(t) can be found by Laplace Transform X(s) as follows:

x(\infty)= \lim\limits_{s \to0} sX(s)

a) X(s)= \frac{s}{3s+7}

Since the pole is at left side, FVT is applicable

x(\infty)= \lim\limits_{s \to0} s\frac{s}{3s+7}=0

b) X(s)= \frac{10}{3s^2+7s+4}

\frac{10}{3s^2+7s+4}= \frac{10}{(3s+4 )(s+1)}

Since the poles are at left side, FVT is applicable

x(\infty)= \lim\limits_{s \to0} s \frac{10}{(3s+4 )(s+1)}=0

3 0
3 years ago
Given what you now know about the transportation industry, describe in 50 words or less some key issues which are likely to limi
valentinak56 [21]

Answer:

you can get a good night's sleep and I will talk to him about it

8 0
3 years ago
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