Which of these situations gives an expert witness freedom to give opinions in court?
they have never been an expert witness before.
b)
the testimony is not based on sufficient facts or data.
the expert has been unreliable when dealing with the facts of the case.
d)
the expert's scientific, technical, or other specialized knowledge will
the trier of fact to understand the evidence.

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

Atruck with 34-in.-diameter wheels is traveling at 55 mi/h. find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes:

One hazard of space travel is debris left by previous missions. there are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. calculate the force exerted by a 0.110 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. such a collision chipped the window of the ill-fated challenger in june 1983, causing $50,000 of damage.