Which of the following is the center of the universe according to the geocentric model?

A. Earth

B. Moon

C. Mars

D. Sun

Which is the most accurate description of potassium (K) ? A. It is a metalloid. B. It is dull, brittle, and a poor conductor of electricity. C. It will tend to gain an electron in a chemical reaction. D.

10. A worker uses a pulley system to raise a 24.0 kg carton 16.5 m. A force of 129 N is exerted and the rope is pulled 33.0 m. a. What is the mechanical advantage of the pulley system?

Buna! ne pune le fizica intrebari despre legarea mixta! Va rog, ma puteti ajuta? Ptr raspunsuri bune dau coroana!

Which term compares an objects mass to its volume

A 55 kg ice skater is gliding along at 3.5 m/s. Five seconds later her speed has dropped to 2.8m/s. What is the magnitude of the kinetic friction acting on her skates?

The probability that a battery will last 10 hr or more is 0.8, and the probability that it will last 15 hr or more is 0.11. Given that a battery has lasted 10 hr, find the probability that it will last 15 hr or more

What is the sum of 9260 and 3240? Express your answer numerically to at least three significant figures.

What could you do if the plant is placed in your community and later leads to pollution beyond the amounts allowed by the EPA?

The friends now feel ready to try a problem. Suppose an Atwood machine has a mass of m1 = 2.5 kg and another mass of m2 = 8.5 kg hanging on opposite sides of the pulley. Assume the pulley is massless and frictionless, and the cord is ideal.

What are the 3 main branches of natural sciences