Answer:
Explanation:
Since the work done is same everywhere in the universe. Hence, the work done in jumping will be same for the person on moon and earth:
Given: Mass m = 290 Kg; Height h = 7 m
Required: Work = ?
Formula: Work = Force x distance but, Force F = mg
W= fd
W = mgh
W= (290 Kg)(9.8 m/s²)(7 m)
W = 19,894 Kg.m²/s²
W = 19,894 J
Metal cooking pots and pans often have wooden handles. Wood has a higher specific heat than metal, so it takes more energy to heat a wooden handle than a metal handle. As a result, a wooden handle would heat up more slowly and be less likely to burn your hand when you touch it.
Answer:
<h2>a) secondary oil recovery.</h2>
Explanation:
Secondary oil recovery is used when the pressure inside the well is to high, being not possible to do a primary oil recovery.
To do this method, high pressure is needed, like this case because it says that ''squirts strongly''.
On the other hand, tertiary oil recovery is used when another method is not possible. Hydraulic fracturing or fracking, it's develop with a horizontal drilling, which is not the case.
Answer:
0.336 rad/s
Explanation:
= Angular speed of the turntable = -0.2 rad/s
R = Radius of turntable = 2.9 m
I = Moment of inertia of turntable = 
M = Mass of turn table = 53 kg
= Magnitude of the runner's velocity relative to the earth = 3.6 m/s
As the momentum in the system is conserved we have
The angular velocity of the system if the runner comes to rest relative to the turntable which is the required answer is 0.336 rad/s
