D I think I really don’t know
Answer:14 m
Explanation:
Given
Vertical jump make by the dolphin is given by
Suppose the dolphin jump with an initial velocity of
so u is given by
If dolphin launches at an angle then maximum horizontal range is given by
assuming the of Dolphin to be Projectile so range is given by
substitute the value of
Range will be maximum for
thus
Answer:
Angle θ ≅ 21.5°
Explanation:
Given:
speed Vi= 60 m/s, Range R= 250 m, g=9.81 m/s²
To find:
Angle θ = ?
Sol: we know that Rang R = Vi² sin 2θ / g
⇒ Sin 2θ = g×R / Vi²
Sin 2θ = (9.81 m/s² × 250 m) / ( 60 m/s)²
Sin 2θ = 0.68125
2θ = Sin ⁻¹ (0.68125)
2θ = 42.9413
θ = 42.9413 / 2
θ = 21.4706 ≅ 21.5°
<h2><u>ANSWER</u></h2>
The simplest definition of a black hole is an object that is so dense that not even light can escape its surface. If we squished the Earth's mass into a sphere with a radius of 9 mm, the escape velocity would be the speed of light. Just a wee-bit smaller, and the escape velocity is greater than the speed of light.
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