What is one of the benefits that scientists have discovered from organisms' daily exposure to radioisotopes?

1. being able to Carbon date fossils

2. X-ray Imaging capability

3. radiation treatment for cancer

4. invention of microwave cooking

You want to design an ideal Carnot heat engine that wastes only 35.0% of the heat that goes into it. The lowest cold-reservoir temperature available to you is + 15.0°C. If 150.0 J of work is done per cycle, the heat input per cycle is closest to

How much net force is required to keep a 3-kg object moving to the right with a constant speed of 6.0 m/s?

Gravity is not considered matter True or false

Difference between constant speed and average speed

The vacuum tube was replaced with what electrical component?

50g of ice at 0°C is mixed with 50g of water at 80°C, what will be the final temperature of a mixture in degrees C?

If the Density of an object is 5.2 g/cm3, and its volume is 3.7 cm3, what is its mass

The direction of the magnetic field is determined by which of the following? A. energy of the current B. magnetic domain C. magnetic force D. direction of the current

A ship is traveling at 154 m/s and accelerates at a rate of 1.80 m/s^2 for 1 minute. What will its speed be after that minute? Calculate the answer in both meters per second and kilometers per hour.

Gerry is looking at salt under a powerful microscope and notice a crystalline structure. what can be known about the salt sample that Gerry is looking at