A bicyclist, initially at rest, begins pedaling and gaining speed steadily for 6.20s during which she covers 49.0m. What was her final speed (in given units)?

Which sound characteristic is not affected by the relative motion of an object

Acentrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. when switched off, it rotates through 54.0 revolutions before coming to rest. find the constant angular acceleration (in rad/s2) of the centrifuge. your response is within 10% of the correct value. this may be due to roundoff error, or you could have a mistake in your calculation. carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rad/s2

Mixing salt in water is an example of physical change