A train travels 79 kilometers in 4 hours and then 65 kilometers in 3 hours what is it average speed

Are we even real? Do we exist or are we robots or a simulation or experiment?

6.9 is how many kilometers

A crate is placed on a slipway with gradient 1 in 5 (20%). The slipway has a coating of dry seaweed, coefficient of friction m 1⁄4 0.6. Show that the crate is stable.

Question: Why is DNA useful in tracing evolutionary changes? A) DNA contains only elements, so it does not react easily. B) Many organisms do not contain DNA. C) Certain mutations in DNA happen at a constant rate.

To solve using one of the kinematic equations a person must know how many of the variables in the equation?

Your heart pumps 80 g of blood with each beat. The blood starts from rest and reaches a speed of 0.60 m/s in the aorta. If each beat takes 0.16 s, the average force exerted on the blood is a. 3.0" 102 N b. 0.22 N c. 0.16 N d. 0.30 N e. 0.98 N

What is the formula for calculating the mass when i have the number of volume and density

What is the name for potential difference that causes current to flow? (A) electric charge (B) static discharge (C) voltage

How is a herpetologist and a ecologist similar

In an oscillating lc circuit, when 75.0% of the total energy is stored in the inductor's magnetic field, (a) what multiple of the maximum charge is on the capacitor and (b) what multiple of the maximum current is in the inductor?