3 ( X + 6 ) = 24 What is X
2 answers:
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Answer:
Both
Kinetic energy is 25 joule
Potential energy is 784.8 joule
Step-by-step explanation:
Given : A 2-kg bowling ball rolls at a speed of 5 m/s on the roof of the building that is 40 tall.
To find : Is it KE or GPE or Both
Solution :
Mass of the ball - 2 kg
Velocity of the ball - 5 m/s
Height - 40 tall
Both the energy is applied on the object.
1) Kinetic energy (KE)
Formula to find KE is
Kinetic energy is 25 joule.
2) Potential energy (GPE)
Formula to find GPE is
g is the acceleration due to gravity,
Potential energy is 784.8 joule.
<h2>Answer:</h2>
BC ≅ 11cm
<h2>Step-by-step explanation:</h2>To accomplish this task, follow these steps:
i. Using your ruler, draw a line AB with length 8cm as shown in Figure 1. This will give AB = 8cm
ii. Remove the ruler and place your protractor at the point A and parallel to line AB as shown in Figure 2. Make a dot at the mark 90° of the protractor (See Figure 2). For accuracy, ensure that the 180° mark of the protractor is on the line AB.
iii. From point A through the dot in (ii) above, use a ruler to draw a line AC of length 8cm as shown in Figure 3. This will give AC = 8cm and will also give angle CAB = 90°
iv. Now join points C and B by drawing a line from point A to C using a ruler as shown in Figure 4.
v. Lastly, measure the length of BC by placing your ruler on line BC as shown in Figure 5. This should give a value of about 11cm.
Therefore the length of BC = 11cm approximately.
<em>NB: All figures are attached to this response. </em>