Answer:
it is to do with the static electricity produced by using the comb
Answer:
brainly getting too strict smh...
Explanation:
Answer:
2.5km
Explanation:
Assuming you also walk with the average human walking speed of 5 km/h. We know that speed=distance/time and now making distance the subject, distance is a product of speed and time. The time is 30 minutes, expressed in hours will be 30/60=0.5 hours. Substituting 5km/h for speed and 0.5 hours for time then the diatance covered will be
Distance=5*0.5=2.5 km
Answer:
The increase in temperature of the bullet is 351.1 kelvin
Explanation:
First, we should find the kinetic energy of the bullet is:

with m the mass and v the velocity.

Now we know that half of the kinetic energy of the bullet is transformed into internal energy, by second's law of thermodynamics that means heat (Q) to raise bullet temperature (T), so:

To know what the increase in temperature is, we should use specific heat of lead:

The equation that relates specific heat, change in temperature and mass is:

solving for
:


Well, kinetic energy is energy of motion, and three of these
four objects are just sitting there and not moving at all.
The tank, the car, and the boulder have no kinetic energy at all,
since they're not moving.
The fish who is swimming is the only one with any kinetic energy,
so we don't even have to calculate how much. The fish is your man.