Answer:
C) Annual compounding
Explanation:
The formula for compound interest is given as
Interest = Principle × ( 1 + Interest rate )ⁿ - 1
Here,
n is the number of compounding period
and, the interest varies with the number of periods
Now,
For Annual compounding
Number of compounding period in a year will be 1
For Semi-annual compounding
Number of compounding period in a year will be 2
For Monthly compounding
Number of compounding period in a year will be 12
For Daily compounding
Number of compounding period in a year will be 365
Therefore,
For annual compounding the interest will be least.
Answer:
0.256 m/s
Explanation:
Speed is distance over time.
Find the speed of each trial and then find the average.
Trial 1: v = 0.7 m / 2.5 s = 0.280 m/s
Trial 2: v = 0.7 m / 2.75 s = 0.255 m/s
Trial 3: v = 0.7 m / 2.98 s = 0.235 m/s
v_avg = (0.280 m/s + 0.255 m/s + 0.235 m/s) / 3
v_avg = 0.256 m/s
Round as needed.
Explanation:
Work done is given by the product of force and displacement.
Case 1,
1. A boy lifts a 2-newton box 0.8 meters.
W = 2 N × 0.8 m = 1.6 J
2. A boy lifts a 5-newton box 0.8 meters.
W = 5 N × 0.8 m = 4 J
3. A boy lifts a 8-newton box 0.2 meters.
W = 8 N × 0.2 m = 1.6 J
4. A boy lifts a 10-newton box 0.2 meters.
W = 10 N × 0.2 m = 2 J
Out of the four options, in option (2) ''A boy lifts a 5-newton box 0.8 meters'', the work done is 4 J. Hence, the greatest work done is 4 J.
The correct answer would be to express large and small numbers.
