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3 years ago

1.How does inertia affect a person who is not wearing a seatbelt during a collision?

1 answer:

6 0

1. during a collision, the person not wearing a seatbelt is already in motion. there is no outside force (the seatbelt) to stop this motion.
2. Kinetic Energy = 0.5 * m * v^2 because velocity is a squared term, doubling the velocity actually quadruples the kinetic energy, making the stopping distance much much greater
3. by the same logic as above, mass is not a squared term, therefore doubling the mass will double the kinetic energy, increasing the stopping distance -- but by not as much as increasing the velocity.
4. because a driver cannot alter the mass of his vehicle, the best way to enter sharp curves would be decreasing velocity (speed)
5. there are many factors that determine the degree of damage (to humans and property in a crash), most notably the size of the vehicle(s) and velocity.

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SummaryIn this lab, you complete a partially written C++ program that includes a function named multiplyNumbers() that multiplie

Maru [420]

Answer:

Declare the method prototype using:

void multiplyNumbers(int x, int y,int &product);

Call the function using:

multiplyNumbers(num1, num2,product);

Lastly, the method is as follows:

void multiplyNumbers (int x, int y,int &product) {

product = x * y;

return; }

Explanation:

Declare the method prototype using

void multiplyNumbers(int x, int y,int &product);

Call the function using

multiplyNumbers(num1, num2,product);

The method is as follows; the & written in front of product implies that product is passed by reference

void multiplyNumbers (int x, int y,int &product) {

This calculate the product

product = x * y;

This returns nothing

return; }

See attachment for complete program

Download cpp

5 0

3 years ago

Write code that prints: usernum ... 2 1 blastoff! your code should contain a for loop. print a newline after each number and aft

Svetradugi [14.3K]

You never said what language so I used C

#include <stdio.h>

int main () {

int a;

for( a = 3; a > 0; a-- ){

printf("%i \n", a); }

printf(" Blast OFF !!!\n");

return 0;

}

4 0

3 years ago

The chart shows changes in sea level from 1995 to 2013. According to the chart, sea levels rose at an average annual rate of 3.2

MariettaO [177]

Answer:

Did the global surface temperature increase steadily from 1995 to 2013?

Did sea ice extent in polar regions reduce because of melting from 1995 to 2013?

Explanation:

Only two questions are directly related to global warnings increasing sea levels:

Did the global surface temperature increase steadily from 1995 to 2013? Increasing temperature of the Earth's surface is actually what warming means.
Did sea ice extent in polar regions reduce because of melting from 1995 to 2013? If the polar ice melts then the sea levels will rise.

The other three questions were about the negative effects of rising sea levels, but not what could cause them.

5 0

3 years ago

Read 2 more answers

Simplify the Boolean expression (AB(C + BD) + AB]CD.

finlep [7]

Explanation:

Simplify the Boolean expression (AB(C + BD) + AB]CD.

6 0

3 years ago

Read 2 more answers

1. Create a function called count_to_three() , remember the colon.

Len [333]

Answer:

This program is written using Python programming language

The program doesn't make use of comments

See attachment for proper format of the program

def count_to_three():

print("One")

print("Two")

print("Three")

count_to_three()

Explanation:

The first line of the program defines the function count_to_three() with no parameters, passed to it

Line 2 to 4 of the program is indent and each line make use of print() function

Line 2 prints "One", Line 3 prints "Two" and Line 4 prints "Three" without quotes

The last line of the program calls the defined function

4 0

3 years ago