Thermodynamics 1st law

Will upvote Wich of the following is not a simple machine? 1.) A bike 2.) A screw 3.) A incline plane 4.) A lever

How much power is required to do 40 J of work on an object in 5 seconds? A. 0 W B. 5 W C. 8 W D. 40 W E. 200 W

When energy is absorbed in process, which type of reaction is it? Question 5 options: exothermic endothermic fusion sublimation

Light travels at a constant speed of about 300,000 km/s. This speed is referred to as the speed of light. A light year is the distance that light travels in one year. One light year is equal to 9.46 trillion kilometers.

How to find power of each resistor in a parallel circuit

A runner makes one lap around a 200m track of 25s. What were the runners average speed and average velocity?

Which change occurs when an atom undergoes alpha decay?

An athlete swings a ball, connected to the end of a chain, in a horizontal circle. The athlete is able to rotate the ball at the rate of 8.44 rev/s when the length of the chain is 0.600 m. When he increases the length to 0.

A moving small car has a head-on collision with a large stationary truck 7.3 times the mass of the car. Which statement is true about the direction of the car after the collision if the collision is elastic?

In a ballistic pendulum experiment, projectile 1 results in a maximum height h of the pendulum equal to 2.0 cm. A second projectile causes the the pendulum to swing higher, to h2 = 5.5 cm.