Calculate the energy needed to heat 4 kg of water from 25°C to 45°C.

heat =

80 Kcal

100 Kcal

180 Kcal

280 Kcal

Questupom What energy transformations take place when you eat a taco and then go for a jog around the neighborhood?

If a nuclear device has been detonated near your area, and you are considering the type of protective shielding you might need, you would use lead shielding for protection against which type of radiation?

If the mass of a material is 43 grams and the volume of the material is 14 cm^3, what would the density of the material be?

A speeder passes a parked police car at 26.8 m/s. instantaneously, the police car starts from rest with a uniform acceleration of 2.40 m/s2. how much time pases before the speeder is overtaken by the police car? answer in units of s.

A train travels 600 kilometers in 1 hour. What is the train's velocity in meters/second?

8. A car moving at 35 m/s has 675 joules of KE. What is the mass of the car?

What force works against gravity as water infiltrates the soil and moves underground?

When is it safe for you to place a construction load on a concrete structure

You have two pendulums with cords that are exactly the same length. one is on earth (with an acceleration due to gravity of 9.81 meters/second2) and the other one is on the moon (with an acceleration due to gravity of 1.63 meters/second2).

The magnetic field is 0.0 2M from the wire is 0.1 T what is the magnitude of the magnetic field 0.0 1M from the same wire