Answer: 2.4 watts
Explanation:
Work done by horse = 910J
Time = 380 seconds
Power output of the horse = ?
Recall that power is the rate of doing work. Thus, power is workdone divided by time taken.
i.e Power = (work/time)
Power = 910J/380seconds
Power = 2.395 watts (rounded to two significant figures as 2.4 watts)
Thus, the power output of the horse is 2.4 watts
To determine, the final velocity we use one kinematic equation. It would be 2ax = vf^2 - v0^2. The initial velocity would be zero since it starts from rest. Therefore, the equation would be:
vf = √(2ax) where a is the acceleration ( a = g ) and x is the height
vf = √(2)(9.8)(25)
vf = - 22.14 m/s
Answer:
Monitoring reader comments and engagements, mini research about the demographics of previous edition, an online survey
Explanation:
The more she understands the background and need of her audience, the better her speech and coherence will be .
Some ways to discover her audience are:
1. Ask the organizers or do a mini research about the demographics of the audiences that are at the previous edition of the annual fund-raiser. Knowing the demographics such as gender, age group, level of education, language,culture etc. will allow her to Know about the audience's interest ad common grounds.
2. Monitoring of comments and engagements about the program can give her incite about the audience
3. A survey can be carried out if the audience are accessible.
Answer:
C. matching coastlines
Explanation:
The theory of continental drift was originally proposed in 1912 by German meteorologist and geophysicist Alfred Wegener (1880-1930), who formulated it based, among other things, on how they seemed to fit the shapes of the continents on each side of the Atlantic Ocean, such as Africa and South America. This had previously been speculated by some mapmakers.
Answer:
Explanation:
Given that,
Initial speed, u = 65,640 km/h
Final speed, v = 120,600 km/h
Time, t = 2.5 days = 60 h
We need to find the acceleration of the hyperdrive. We know that, acceleration is equal to the change in velocity per unit time. So,
So, the acceleration of the hyperdrive is equal to 
.
