Based on the table, which isotope is best suited for use as a radioactive tracer for the body's use of calcium? calcium-40 calcium-45 calcium-47 calcium-49

A merry-go-round, with mass m and moment of inertia I, spins with angular speed ω on the Earth's equator. The merry-go-round's surface is parallel to the Earth's surface with the y-axis oriented north and the x-axis oriented east.

A car starts from rest and accelerates to 45.0 m/s in 15 seconds, after which it travels at a constant speed for 1.0 minute, and then comes to rest in 30 seconds. Calculate the acceleration of the car during the first 15 seconds.

Question 1: The wavelength of a wave is 0.5 meters, and its period is 2 seconds. What is the speed of this wave?

Which statement best describes the difference between speed and velocity? A. Velocity is speed with a direction. B. Speed is velocity with a direction. C. Velocity is acceleration with a direction. D. Velocity measures position, while speed does not.

Unbalanced forces can cause an object to do three things. What are they?

What is your mass in kilograms?

Why is it useful for pairs of DNA to be held together by men bonds and not covalent bonds?

World class speed skaters can skate a 3,000-m course in about 4 minutes. What is their average speed for this course? A. 12.5 m/s B. 1.33 m/s C. 1.25 m/s D. 13.3 m/s

A building that is 105.50 ft. feet tall is casting a shadow that is 37.50 ft. feet. If the building next to it, is casting a shadow of 41.00 ft. feet, how tall is that building?

What is the technical name for super glue type adhesives