Answer:
Initial Velocity= 49 m/s
Time period= 5 secs
Explanation:
THIS IS THE COMPLETE QUESTION BELOW
A rocket shoots up 123 meters. What is it initial velocity?How long is it ascending
The initial velocity can be calculated using the expression below
u= √( 2gh)
Where g= Acceleration due to gravity= 98 m/s^2
h= height
Substitute the values we have
u = √(2*9.8*123)
u=√( 2410.8)
u = 49 m/s
the time period can be calculated as
(49/9.8)
= 5 sec
Hence time period is 5 secs
Answer:
b. All rocks in the Earth's crust will, at some point, be subducted and melted to create igneous rock.
Explanation:
There are 3 types of rock:
1. Igneous, wich are formed when 2 tectonic plates collide and magma goes to surface getting cold
2. Sedimentary: when many layers of preexistent rocks produce pressure and heat by weigth melting the rocks.
3. Metamorphic: a new rock is formed by chemical and/or physical reaction over preexistent rocks
Sedimentary and metamorphic would be subducted in order to produce new igneus rocks.
They are considered a buyer in the ordinary course of business.
Answer:
B) data mining
Explanation:
Data Mining refers to the process of discovering patterns in large data sets using techniques like machine learning, statistics or database systems. The company uses this process to turn raw data into useful information for marketing , sales or cost management.
Answer:
1,370.85 Unfavorable
Explanation:
Standard rate
:
= Budgeted variable overhead costs ÷ Budgeted direct labor hours
= $13500 ÷ 640
Direct labor hours = $21.09 per direct labor hour
Standard time to produce goods
:
= Budgeted direct labor hours ÷ Production volume
= 640 ÷ 6,400
= 0.10 hours
VOH Efficiency Variance
= ( SH − AH ) × SR
where,
SH are standard direct labor hours allowed
AH are the actual direct labor hours
SR is the standard variable overhead rate
(SH − AH ) × SR
= [(4,200 × 0.10) - 485] × $21.09
= (420 - 485) × $21.09
= 1,370.85 Unfavorable
