What type of lava does a composite volcano have?
What will be an ideal response?
Felsic
Physics & Space Science
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The electron gun in a television tube accelerates electrons (mass = 9.11 × 10^?31 kg, charge = 1.60 × 10^?19 C) from rest to 3.00 × 10^7 m/s within a distance of 2.00 cm. What electric field is required?
Physics & Space Science
A ______________________ universe is Sun centered
Fill in the blank(s) with correct word
Physics & Space Science
Which of the following is currently supplying high resolution X-ray images from space?
A) COBE B) HEAO-2 C) ROSAT D) Chandra E) Einstein
Physics & Space Science
What happens to the magnitude of the magnetic field inside a long solenoid if the radius is doubled?
1.It becomes four times larger. 2.It becomes twice as large. 3.It is unchanged. 4.It becomes one-half as large. 5.It becomes one-fourth as large.
Physics & Space Science