<span>D. It would move in a straight line at a constant speed.</span>
Answer:
Are very small.
Explanation:
Scientists use models to study atoms because atoms are extremely small and can't even be seen.
Answer:
2.1 rad(anticlockwise).
Explanation:
So, we are given the following data or parameters or information in the question above:
=> "The torsional stiffness of the spring support is k = 50 N m/rad. "
=> "If a concentrated torque of mag- nitude Ta = 500 Nm is applied in the center of the bar"
=> "L = 300 mm Assume a shear modu- lus G = 10 kN/mm2 and polar monnent of inertia J = 2000 mln"
Hence;
G × J = 10 kN/mm2 × 2000 mln = 20 Nm^2.
Also, L/2 = 300 mm /2 = 0.15 m (converted to metre).
==> 0.15/20 (V - w) + θ = 0.
==> 0.15/20 (V - w ) = -θ.
Where V = k = 50 N m/rad
w = 183.3 θ.
Therefore, w + Vθ = 500 Nm.
==> 183.3 + 50 θ = 500 Nm.
= 6.3
Anticlockwise,
θ = 2.1 rad.
The whole problem here is convert units of [miles per hour]
into units of [feet per second].
(48 mile/hour) x (5,280 feet/mile) x (hour/3,600 sec) = <em>70.4 ft/sec</em>
In 5.4 sec, the car travels (5.4 x 70.4) = <em>380.16 feet</em> .
That's how far back from the wreck they have to go
to find Randy's missing parts.
