Answer:
Explanation:
the unit of work is derived unit because joule is defined the work done by the force aftab 1 newton causing the displacement of one metre something newton metre(n-m) is also used to measuring work
Answer:
The male skater's velocity is 13.71 m/s.
Explanation:
From the law of conservation of momentum:
m1u1 = (m1 + m2)u2
m1 is the mass of the male skater = 78.2 kg
m2 is the mass of the female skater = 48.5 kg
u1 is the velocity of the male skater as a result of the push
u2 is the velocity with which the male skater pushed away the female skater = 8.46 m/s
u1 = [(78.2+48.5)8.46] ÷ 78.2 = 1071.882 ÷ 78.2 = 13.71 m/s
Answer:
Hz
Explanation:
In alternating current (AC) circuits, voltage (V) oscillates in a sine wave pattern and has a general equation as a function of time (t) as follows;
V(t) = V sin (ωt + Ф) -----------------(i)
Where;
V = amplitude value of the voltage
ω = angular frequency = 2 π f [f = cyclic frequency or simply, frequency]
Ф = phase difference between voltage and current.
<u><em>Now,</em></u>
From the question,
V(t) = 230 sin (100t) ---------------(ii)
<em><u>By comparing equations (i) and (ii) the following holds;</u></em>
V = 230
ω = 100
Ф = 0
<em><u>But;</u></em>
ω = 2 π f = 100
2 π f = 100 [divide both sides by 2]
π f = 50
f = Hz
Therefore, the frequency of the voltage is Hz
Using the division operation, the <em>number of tubes gotten by each patient </em>can be obtained by <em>dividing 20 by 5</em>. Hence, each patient will get 4 tubes of solution.
<u>Tubes of solution received</u> :
- 10 a.m = 2 tubes
- 12 p.m = 4 tubes
- 3 p.m = 8 tubes
- 6 p.m = 6 tubes
<u>Total tubes received</u> :
- (2 tubes + 4 tubes + 8 tubes + 6 tubes) = 20 tubes
- Number of patients = 5 patients
<u>Number of tubes of solution gotten by each patient</u> :
- (Total tubes of solution ÷ number of patients)
Tubes of solution per patient = (20 ÷ 5) = 4 tubes
Therefore, each patient will get 4 tubes of solution.
Learn more : brainly.com/question/25339242
