Or stars in the main sequence, which color of stars tend to have higher absolute brightness?

White stars

Yellow stars

Blue stars

Red stars

What vocabulary word is "wetness in the atmosphere"?

A 66 kg person is parachuting and experiencing a downward acceleration of 2.1 m/s2. The mass of the parachute is 4.0 kg. (a) What is the upward force on the open parachute from the air?

5. Which energy resources are found above the Earth's surface?

A proton moving at 4.80 10⁶ m/s through a magnetic field of 1.52 T experiences a magnetic force of magnitude 7.95 10⁻¹³ N. What is the angle between the proton's velocity and the field?

Why are the oldest parts of the ocean floor no older than about 200 million years

The luminous star Alnilam in the Orion belt is 1,340 light-years away from Earth. Use the conversion factor 1 parsec = 3.262 light-years to find the closest conversion of this distance from light-years to parsecs (pc).

How do astronomers know what conditions exist inside the Sun?

An object is moving but we don't know its mass or velocity. A force of 20 newtons to the right is exerted on the object for 20 seconds. What is the (vector) change in linear momentum for the body as a result of this impulse?

Which friction-reducing technologies are used in the Variable Compression Turbo Engine?

A quadraphonic car stereo operates on electric current provided by the car's 12V battery and is connected in series. Each channel of the stereo, which feeds the electrical signal to one of the stereo's four speakers, has a resistance of 4.1 oums.