A spring gun at ground level fires a tennis ball at an angle of 37°. The ball lands 22 m away. What was the ball’s initial speed? Round your answer to the nearest tenth.

Solve the initial value problem.Differential Equation: = (sec2t)i + (4t3- 3)jInitial Condition: r(0) = -6j

Find the domain of the vector-valued function.r(t) = ln (t – 1)i + j

If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the velocity vector.r(t) = (3t2 + 15)i + j

Solve the initial value problem.Differential Equation: = (3t2 + 2t)i + (4t3+ 9)jInitial Condition: r(0) = 6j

Find the principal unit normal vector N for the curve r(t).r(t) = (1 + t)i + (6 + ln(cos t))k, -π/2 < t < π/2

Find the curvature of the curve r(t).r(t) = (5 + 5 cos 10t) i – (7 + 5 sin 10t)j + 3k

Compute r”(t).r(t) = (3 ln(6t))i + (9t3)j

Which type of bone cell performs osteolysis?

Tendons and ligaments are composed of dense irregular connective tissue