Answer:
3.042 m/s
Explanation:
To solve this exercise it is necessary to use the Work equation and the conservation of kinetic energy in the Ice skater.
According to the description of the problem, all the work is done from north to south due to the wind direction. In this way, finding the force in this component we have,
Through the kinetic energy equations we have to
Re-arrange for
Therefore te speed after gliding 100m in this wind is 3.042m/s
The correct answer to the question is :
CALCULATION:
The angle of inclination of the hill with the horizontal ground .
The magnitude of displacement or the distance travelled by the car up that hill is given as -
distance S = 10.0 Km.
We are asked to calculate the vertical displacement.
Applying vector resolution process, we get-
(a) is the horizontal component
(b) is the vertical component.
Hence, the vertical displacement is calculated as -
Vertical displacement
= 1.392 Km.
Hence, the vertical displacement of the car is
Answer:
11.Chemical
12.Chemical
13.Chemical
14.Physical
15.Physical
16.Chemical
17.Physical
18.Physical
Explanation:
I am not entirely sure about them, but most should be correct.
Answer:
Explanation: there are three types of fossil fuels which can all be used for energy provision; coal, oil and natural gas. Coal is a solid fossil fuel formed over millions of years by decay of land vegetation. When layers are compacted and heated over time, deposits are turned into coal.
Answer:
Explanation:
An example of an intense aerobic activity would be running/ sprinting sprinting targets six specific muscle groups: hamstrings, quadriceps, glutes, hips, abdominals and calves. Sprinting is a total body workout featuring short, high-intensity repetitions and long, easy recoveries.