Given:
speed of 0.40meters/seconds
1,800 Newton's horizontal force
Required:
Power of the horse
Solution:
P = F(D/T) where P is power in
watts, F is the force, D is the distance and T is time
P = (1,800N) (0.40 meters/seconds)
P = 720 Watts
Theories
If it’s wrong oh well because I just guest buh glad to help :)
Answer: 428.57 Mpc
Explanation:
Hubble deduced that the farther the galaxy is, the more redshifted it is in its spectrum, and noted that all galaxies are "moving away from each other with a speed that increases with distance", and enunciated the now called Hubble–Lemaître Law.
This is mathematically expressed as:
(1)
Where:
is the recession velocity of the galaxy
is the Hubble constant
is the distance
Isolating from (1):
(2)
(3)
Finally:
Answer: B,E,F
Explanation:
(B) the inner core is solid. (E) the outer core is liquid and moving. (F) Earth's core is composed of iron and nickel
The upward force exerted on the board by the support is mathematically given as
Fu= 764.8 N
<h3>What is the upward force exerted on the board by the support?</h3>
Generally, the equation for is mathematically given as
Considering that the Net Force on the system is null
The weight of the children plus the weight of the board equals the upward force imposed on the support.
The upward force
Fu= 440 + 272 + 52.8 N
Fu= 764.8 N
In conclusion, he upward force exerted on the board by the support
Fu= 764.8 N
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