How much heat is released when 30 g of water at 96°C cools to 25°C? The specific heat of water is 1 cal/gºC.

Oa

b

ano

2,130 cal

0.213 cal

-2,130 cal

-0.213 cal

Which types of organisms will be affected by a decreased supply of water in an ecosystem

A 920 kg block is pushed on the slope of a 30 frictionless inclined plane to give it an initial speed of 50 cm/s along the slope when the block is 2.3 m from the bottom of the incline. The acceleration of gravity is 9.8 m/s2.

Which element is the atom shown in figure 15.6

An adventurous archeologist (m = 80.5 kg) tries to cross a river by swinging from a vine. The vine is 11.0 m long, and his speed at the bottom of the swing is 7.80 m/s. The archeologist doesn't know that the vine has a breaking strength of 1,000 N.

Which of the following determine an object's velocity? A. speed and direction B. direction and acceleration C. speed and mass D. speed, direction, and acceleration

A solid weighs 277.5 g in air and 212.5 g when totally immersed in the liquid of density 0.9 g / cc. Calculate the density of the solid.

Who first described the double-helix structure of DNA?

Suppose you are holding a basketball while standing still on a skateboard you are and the skateboard have a mass of 50 kg you throw the basketball with a force of 10 N what is your acceleration before and after you throw the ball

Which nitrogen base sequence is the partner of C-A-T-C-G-A? O C-A-T-C-G-A O G-T-A-G-C-T OT-G-C-T-A-G O G-C-A-T-G-T TI

What is the kind of energy that comes from movement?