Correct answer choice is :
C) A jar with snails crawling on living plants
Explanation:
By using the power of sunlight, plants can change carbon dioxide and water into glucose and oxygen in a method described photosynthesis. As photosynthesis needs sunlight, this method only occurs during the day. We usually like to think of this as plants `exhaling in carbon dioxide and `breathing out oxygen. Gas transfer between Alveolar Spaces and Capillaries. The role of the respiratory system is to transfer two gases, oxygen and carbon dioxide. The transfer takes place in the millions of alveoli in the lungs and the capillaries that surround them.
Answer:
Straight line in the direction of the tangential velocity the ball had at the moment the string broke
Explanation:
After the string breaks, the ball now disconnected from the centripetal force that was exerted via the string, continues its travel in a straight line in the direction of the tangential velocity it had at the moment the string broke.
Answer: Sean is standing still, and Rhea is running toward Sean while kicking the ball
Explanation: Your welcome :)
Answer:
the correct answer is A, the object goes 4 times as far
Explanation:
This is a projectile launching approach. Where the parameter we are controlling is the initial speed and they ask us how far it goes from the initial one. Let's calculate the range with a speed (vo)
R1 = v₀² sin 2θ / g
Now let's double vo, the new speed is
v = 2 v₀
We calculate the scope
R2 = (2v₀)² sin 2θ / g
R2 = 4 v₀² sin 2θ / g
R2 = 4 R1
Therefore the correct answer is A, the object goes 4 times further
Answer:
Explanation:
The magnetic field in a solenoid is
B = μ₀ N / L I
Where N is the number of turns, L the solenoid length and I the current
N = B L / μ₀ I
Let's calculate
N = 5.8 10⁻³ 0.18 / 4 π 10⁻⁷ 1
N = 8.3 102 laps
N = 831 laps
Let's find the solenoid length
For this we use a rule of proportions
L_solenoid = Turns * wire diameter
L_ solenoid = 831 * 0.41 10--3
L_solenoid = 0.3407 m
We see that two turns are needed in the wire to have a length of 0.18 m
