While a gymnast is in the air during a leap, which of the following quantities must remain constant for her? A) Angular momentum about her center of massB) positionC) velocityD) momentumE) angular velocity

How does the charge of a particle affect the direction in which the particle is deflected in a magnetic field?

If the velocity of an object changes from 15 m/s to 50 m/s during a time interval of 4 s, what is the acceleration of the object?

If the rockets of a spaceship in outer space (far from all gravity) suddenly lose power and go off, the spaceship will gradually slow to a stop. True or false?

At what angle θ must the 630-lb force be applied in order that the resultant r of the two forces has a magnitude of 1520 lb? for this condition determine the angle β between r and the vertical.

In eukaryotes, proteins that attract rna polymerase bind to __ sequences in DNA

Which tools would sara us to find an irregularly shaped objects mass and volume A. a meter stick, a ruler, and water B. a meter stick, a balance, and water C. a balance, water, and a ruler D. a balance, water, and a beaker

Scientists who study races and their origins are called A. anthropologists. B. ethnologists. C. paleontologists. D. sociologists.

Why are telescopes that detect non - optical radiation useful for studying objects in space

Which of the following is not an application of Doppler technology? police speed guns weather radar ultrasound imaging of the liver determining the motion of a star

For a constant voltage, increasing the resistance will cause the current to decrease. true or false