Which of the following radioactive emissions is the most penetrating?

alpha particles

beta particles

gamma rays

What force is required to give an object with mass 50 kg an acceleration of 8 m/s2?

adeen says that you can increase the resistance of a copper wire by hammering the wire to make it narrower and longer. Arnell says that you can increase its resistance by heating the wire. Which one, if either, is correct, and why

A bucket of water experiencing a gravitational force of 525 N is pulled up from a water well. The net force in the y-direction is 45 N; therefore, the magnitude of the force of tension is

After giving an intense performance, a confused and disoriented flautist has wandered onto the motorway! They are playing a constant 300 Hz tone on their flute and are essentially stationary. If you are driving along the motorway at 100 km h-1 (27.

What do you need to do in order to increase or decrease your body fat percentage?

A baseball flying through the air has kinetic energy because of its motion. true or false?

How many poles does Jupiter's magnetosphere have? a. 2 c. 8 b. 4 d. 9

Which describes nuclear fusion? The nuclei of two atoms combine to form a larger nucleus. The nucleus of one atom splits to form two smaller nuclei. The electrons of two atoms combine to form a cluster of electrons.

In a class debate, a student argues that the big bang theory is "just a theory." What is most likely to be this student's understanding of scientific theories? A. Theories agree with observations of nature. B. Theories are just guesses. C.

Look at the advertisement. A poster that reads, "There's more to resistors than resistance. If you're really serious about cost, be serious about quality." with tools. Which persuasive media technique is used in this advertisement