Which of the following statements comparing Uranus and Neptune is correct?
A. Neptune has larger diameter and smaller mass.
B. Uranus has larger diameter and more mass.
C. Neptune has larger diameter and more mass.
D. Uranus has larger diameter and Neptune has more mass.
Answer: D
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Projectile Motion: A high-speed dart is shot from ground level with a speed of 150 m/s at an angle 30° above the horizontal. What is the vertical component of its velocity after 4.0 s if air resistance is neglected?
A. 150 m/s B. 36 m/s C. 130 m/s D. 75 m/s E. 38 m/s
A container of negligible heat capacity has in it 456 g of ice at -25.0°C. Heat is supplied to the container at the rate of 1000 J/min
After how long will the ice start to melt, assuming all of the ice has the same temperature? The specific heat of ice is 2090 J/(kg K) and the latent heat of fusion of water is 33.5 × 104 J/kg.
Earth is about 150 million km from the Sun, and the apparent brightness of the Sun in our sky is about 1,300 watts per square meter. Determine the apparent brightness we would measure for the Sun if we were located half Earth's distance from the Sun
What will be an ideal response?
A paint pigment that absorbs blue light and gives off red light
A) is fluorescent. B) is phosphorescent. C) can be both of these D) neither of these