A 300 g glass thermometer initially at 20 ◦C

is put into 297 cm3

of hot water at 83 ◦C.

Find the final temperature of the thermometer, assuming no heat flows to the

surroundings. The specific heat of glass is

0.2 cal/g ·

◦ C and of water 1 cal/g ·

◦ C.

How much work is done when a 700 N refrigerator is lifted straight up a distance of 4 meters

Which is the correct life sequence of a star? main sequence, dwarf, giant, nebula nebula, giant, main sequence, dwarf dwarf, nebula, main sequence, giant nebula, main sequence, giant, dwarf

The force of gravity acting on a child's mass on earth is 490 newtons. What's the child's mass? A. 206 kg B. 4,802 kg C. 50 kg D. 800 kg

An attractive force of 7.2 N occurs between two charges that are 0.20 m apart. If one charge is 4.0 μC, what is the other charge?

As an admirer of Thomas Young, you perform a double-slit experiment in his honor. You set your slits 1.09 mm apart and position your screen 3.27 m from the slits.

If b is the amplitude of the magnetic field vector, find the complete expression for the magnetic field vector b⃗ of the wave.

A person jogs 40 km in 32 minutes then 20 km in 22 minutes and finally 10 km in 16 minutes what is his average speed in in per minute

Can an igneous rock become another igneous rock? If so, how?

Which of the following is true about how pressure varies with depth in a fluid? a. Pressure decreases with depth because it must support the fluid weight above it. b. Pressure increases with depth because it must support the fluid weight above it. c.

A car is slowed because the air it is moving through pushes against it. This contact force is know as air ... a) resistence b) impact c) tension d) stress