An electric toaster operating on 120 volts draws a current of 6 amperes. The resistance of the toaster is __________
Fill in the blank(s) with correct word
20 ohms
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A 10 kg ball weighs 98 N in air and weighs 75 N when submerged in water. The buoyant force of the water on the ball is
A. 32 N. B. 30 N. C. 24 N. D. 23 N. E. 19 N.
Suppose the Sun were to suddenly shrink in size but its mass remained the same. According to the law of conservation of angular momentum, what would happen?
A) The Sun's angular size in our sky would increase. B) The Sun's rate of rotation would slow. C) The Sun's rate of rotation would remain the same. D) The Sun rate of rotation would increase.
Two students stand poised to leap off a high dive structure into the swimming pool below. Student B is twice as massive as student A. Which of the following is true?
a. Student B will reach the ground sooner than student A b. Both students have the same gravitational potential energy c. Both students will have the same kinetic energy just before impact d. Student B did twice as much work climbing to the top of the structure
The dark dust clouds can be explored better with infrared than with visible light
Indicate whether the statement is true or false