Name an object that is mostly transparent, one that is translucent, one that is mostly absorbent, an one that is mostly reflective.

Which changes would cause the fusion rate in the sun’s core to increase?

a 0.145 kg baseball pitched at 39.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s. if the contqct time bewteen bat and ball is 3.00x10^-3 calculate the average force between the bat and ball during contact

how do scientists know that black holes exist A. by running experiments on the sun B. by observing objects and light around black holes C. by viewing black holes with powerful telescopes D. all of the above E. none of the above

As soon as parachute of a falling soldier opens, how will the accleration change?

For all values of x, y, and z, which expression is equivalent to 5xy. 5z? 5 (x + y + 2) 10xyz 25xyz 25 + x + y + z

The number of significant digits in the mass of a body measuring 4200.0 kg is 2.

Two forces of intensities 3 N and 4 N act simultaneously on a body. If these forces have the same direction and sense, what is the intensity of the resulting force?

Ch 31 HW Problem 31.63 10 of 15 Constants In an L-R-C series circuit, the source has a voltage amplitude of 116 V, R = 77.0 Ω, and the reactance of the capacitor is 473 Ω. The voltage amplitude across the capacitor is 364 V.

Calculate the force at sea level that a boy of mass 50 kg exerts on a chair in which he is sitting.

A 25 kg girl steps off a diving platform that is 2 m high. Neglecting the effects of friction, what is the girl's speed just before she hits the water? A. 2.0 m/s B. 6.3 m/s C. 39 m/s D. 490 m/s