Which of the following is a problem associated with hands-free devices?

A. They cause drivers to fixate on the car in front of them.

B. They require extra attention due to poor reception.

C. They use a number of small, hard-to-reach buttons.

A bicycle tire is spinning counterclockwise at 2.70 rad/s. During a time period Δt = 1.50 s, the tire is stopped and spun in the opposite (clockwise) direction, also at 2.70 rad/s.

An object is dropped from a height of 25 meters. At what velocity will t hit the ground? A. 7.0 B. 11 C. 22 D. 49 E. 70

The triceps muscle in the back of the upper arm extends the forearm. This muscle in a professional boxer exerts a force of 2615 N with an effective perpendicular lever arm of 2.85 cm, producing an angular acceleration of the forearm of 110.

In the following reaction, which substance is the precipitate? (NH4) 2SO4 (aq) + Ba (NO3) 2 (aq) BaSO4 (s) + 2NH4NO3 (aq) (NH4) 2SO4 Ba (NO3) 2 BaSO4 NH4NO3

In a certain right triangle, the two sides that are perpendicular to each other have lengths h = 4.40 m and b = 8.70 m. What is the length of the third side of the triangle?

What can result if an earthquake causes a sudden vertical change in the sea floor? A. a tsunami B. liquefaction C. soil creep D. sheet erosion

Suppose gene A on the left chromosome is damaged and no longer functions. what form of the trait would show? Why?

I'm completely lost in physics, the Kinematics and dynamics units ... My exam is coming up ... If a biker travelling at 6.4m/s sees biker B 34m ahead on the road travelling 4.7m/s. How far will biker B get before biker A catches him?

When scientists record the volume of a gas, why do they also record the temperature and the pressure

Why is velocity most important in space launch?