What allows a tightrope walker to walk across the rope?

tension

air resistance

friction

magnetic force

Isabella pushes a box with a force of 20 N. It accelerates at 2 m/s/s. What is the mass of the box?

10 kg

40 kg

22 kg

cannot be determined

What is the G. P. E of 675 newtons on 26000 meter mountain

The noise floor, also known as additive white Gaussian noise (AWGN), is a continuous noise level that appears over a wide spectrum when viewed in the frequency domain. a. Trueb. False

What is the color and frequency of the light that is produced? 1 nm = 1 x 10^-7 meters and the speed of light (c) = 3.0 x 10^8 m/s.

When the speed of an object changes, what happens to its velocity?

Lord Kelvin's calculations for dating the earth were correct, but his assumption that earth was undergoing radiant cooling from combustion of the sun was incorrect, thus he arrived at an incorrect age of 15-20 million years old. a) true b) false

What are sun spots?

Identify characteristics of objective personality tests. -self-report -scientific -paper-and-pencil -questions about behavior -objective -potentially biased answers Multiple Choice-Psychology

The Pony Express was a mail delivery system in the Old West that used a series of men on horseback to deliver mail from St. Joseph, MO to Sacramento, CA along a trail that was 2000 miles long.

In the virtual lab, calculations were made of the predicted diffraction angle, using the formula θ ≈ StartFraction lambda over L EndFraction.

What trends were seen in Mendeleev's periodic table?