ANSWER
T₂ = 10.19N
EXPLANATION
Given:
• The mass of the ball, m = 1.8kg
First, we draw the forces acting on the ball, adding the vertical and horizontal components of each one,
In this position, the ball is at rest, so, by Newton's second law of motion, for each direction we have,
The components of the tension of the first string can be found considering that they form a right triangle, where the vector of the tension is the hypotenuse,
We have to find the tension in the horizontal string, T₂, but first, we have to find the tension 1 using the first equation,
Solve for T₁,
Now, we use the second equation to find the tension in the horizontal string,
Solve for T₂,
Hence, the tension in the horizontal string is 10.19N, rounded to the nearest hundredth.
Answer:
8 seconds
Explanation:
Since the carspeed is in km/h, we need equal units, so we will make 100.0m 0.1000km.
Then we need to find how long it takes the car to travel 0.1km
We can use the formula distance=speed * time and get
0.1=45 * time
Therefore we get .002222... hours
Multiplying this by 3600 (to get seconds, 60x60), we get 8 seconds
6). the presence of caffeine on the worm's skin
7). the worm's heart-rate
8). "Dripping caffeine on a worm's skin causes the worm's heart to beat faster."
(Note: The things she observed suggest but do not PROVE that this hypothesis is true.)
Answer:
Assuming the typical saw used to saw boards in home construction and renovation is a circular saw, the diameter of the blade can be estimated as 7-10 inches (17.8-25.4 cm). The linear speed in m/s of a point on the rim of the circular saw blade is then approximately: (π × 25.4 cm) × (2600 rev/min) / (60 s/min) = 28.0 m/s.
Explanation:
Let solve the program using Java programming language
Method: method means group of statements to perform some operation.
let call the method sum.
Parameters: list of variables that are use in the method for declaration.
<u>The code</u>
public int sum (int number)
int answer;
if (number == 1)
answer = number;
else
{
int half = number/2;
int span = number - half;
answer = sum(half) + sum(span) + (half * span);
}
answer result;
}
Firstly we defined the method called sum(), the method takes only one parameter which is number and return the answer(sum of the integers 1 and N).
if the number is equal to 1, so it will return the number and if the number is not equal to 1 it will divide the number by 2 and get the span(span used to shift upper range).And result will add sum of half, sum of span and product of half span.
