a single two-dimensional cross-sectional imagine made using real-time technology
Answer:
a. 14000
Explanation:
Given parameters:
Efficiency of the machine = 70%
Work done on machine = 20000J
Unknown:
Work done by machine = ?
Solution:
Efficiency of a machine is determined by;
Efficiency = 
70 = 
x 100
70 = 
Work done by machine = 70 x 200 = 14000J
Answer:
234.64 m
Explanation:
Using the formula for calculating range;
Range R = u√2H/g
u is the speed = 13m/s
H is the maximum height
g is the acceleration due to gravity = 9,8m/s²
R = 90m
Get the maximum height;
90 = 13√2H/9.8
90/13 = √2H/9.8
6.923 = √2H/9.8
square both sides
6.923² = 2H/9.8
469.698 = 2H
H = 469.698/2
H = 234.64
Hence the top level was 234.64 m high.
I believe it’s A hope this helps
<span><span>Your friend is bragging about his motorcycle. He claims that it can go from a stopped position to 50 miles per hour in three seconds. He is describing the motorcycle's
</span>Answer: </span>acceleration
Hope This Helps! :3
