Physics
1 + 1 = ?
2
What is the lightest element?
Hydrogen
Rotational force
What is torque?
HTTPS is a widely used privacy-ensuring program by individuals and corporations. What does the abbreviation stand for?
Hypertext Transfer Protocol Secure
The transition of a star into the red giant phase is marked by which of the following events?
Dredge-up of heavier elements from the core
Shedding outer layers due to lowered forces of gravity
Pulsations caused by instabilities in hydrostatic equilibrium
Transition from CNO cycle to proton-proton chain
Dredge-up of heavier elements from the core
Shedding outer layers due to lowered forces of gravity
Pulsations caused by instabilities in hydrostatic equilibrium
Transition from CNO cycle to proton-proton chain
Using the following reaction occurring at 723K, and the given Kc of 1.6 x 102, calculate the Kp.
N2 (g) + 3H2 (g) → 2NH3 (g)
1.6E2(0.08206 x 723)^(-1) = 2.70
Two benefits of using a Darrieus wind turbine as opposed to a usual, horizontal axis wind turbine. (can search up PICTURES of turbines)
What is can get wind from all directions, less noise pollution, less visual pollution, can be used in cramped cities, low bird mortality
What is the inclusion of a secret message in otherwise unencrypted text or images called?
Masquerade
Steganography
Spoof
Eye-in-Hand System
Steganography
This equation solves for it: (1/4πε0)((q1q2/r)
What is electric potential energy
What is a mixture of equal amounts of left- and right-handed enantiomers
What is a racemic mixture
A pair of scissor's class of lever
What is Class 1?
Easy but longer letter substitution problem:
EOI ETQDGPI ZHEO ORKHLV RL QBIL CHLN, QM JQDTYI, HY EORE BIQBPI ZHPP HLYHYE QL JQCHLV RPQLV RLN ETFHLV EQ BDE EOHLVY HL HE. EITTF BTREJOIEE
The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it. Terry Pratchett
The maximum mass that can be hung from a string without it breaking is 10 kg. A 2 m long length of this string is used to rotate a 0.5 kg object in a circle, where the string is horizontal. Assume no friction. What is the maximum speed the mass can attain without breaking?
19.8 m/s
Name all 6 fundamental flavors of quarks. Also, list the quark composition of a proton and a neutron.
up, down, charm, strange, top, and bottom
Proton: two up quarks, one down
Neutron: one up quark, two down
Werner von Braun was the leader of the America Space Program, who was his counterpart in the Soviet Union?
Sergei Korolev
Online testing platforms, such as those used in the Science Olympiad, leverage browser APIs like the Page Visibility API and onblur/onfocus event listeners to detect when a user switches tabs. Which of the following methods will potentially bypass detection methods like these?
A) Running the test in an embedded iframe.
B) Override the document visibility state to always return true.
C) Runs window.focus() periodically
D) Remove all listeners from the DOM.
B