Just as a skydiver steps out of the helicopter, someone who's watching starts a stopwatch. so the time is zero as the skydiver steps out of the plane. what is the skydivers downward velocity at that instant, just before starting to fall

If a man has a mass of 74 kilograms runs 800 meters in 150 seconds, what is his average momentum?

Which of theses best describes the scientific process

In the Balmer series, how many spectral lines have the wavelength greater than 400 nm?

Q1. What is the frequency of rotation of 1000 loop coil of area 20cm2 in a magnetic field of 5T to generate an emf that has a maximum value of 15.7V?

A force exerted on an object produces acceleration. If the mass remains the same and the acceleration is doubled, the force must be.

A meandering river is flowing in a broad, alluvial valley and the river is silt-laden but also moves sand and a small amount of gravel. The government decides to build a dam across the valley for power and flood control.

The Sun 1. Sara has made this list to summarize what she learned in science class today: 1. Core 2. Radiation zone 3. Convection zone What is the best title for her list? a. The Layers of the Interior of the Sun b. The Layers of the Sun c.

Jack rolled a marble down a ramp and recorded the potential energy and kinetic energy of the marble at different positions on the ramp, as shown in the table.

Protons are the smallest particle of an element that retains the original Characteristics of the element. True or False

A 5kg rock and a 10kg rock are dropped from a height of 10m?