A weightlifter does 450 J of work on a barbell in 3 s. How much power is the weightlifter generating?

Is the net force up 0.2 N and down 3 N balanced or not blanced

Water flows into a swimming pool at the rate of 5.85 gal/min. If the pool dimensions are 21.2 ft wide, 46.1 ft long and 19.4 ft deep, how long does it take to fill the pool? (1 gallon = 231 cubic inches) Answer in units of min.

On a frictionless plane inclined at angle 303. The box is connected via a cord of negligible mass to a box of laundered money (mass m2 " 2.0 kg) on a frictionless plane inclined at angle u2 " 603. The pulley is frictionless and has negligible mass.

Consider a box sitting on the floor. If you applied 275 Newtons of force horizontally to the right and the frictional force was 25 Newtons, What would be the magnitude and direction of the net force?

As the distance between two mass increases, the gravitational force of attraction between them A) decreases B) increases C) remains the same

Direction of current in a solenoid depends on the direction of magnetic field

What is your mass in kilograms?

Why is it useful for pairs of DNA to be held together by men bonds and not covalent bonds?

World class speed skaters can skate a 3,000-m course in about 4 minutes. What is their average speed for this course? A. 12.5 m/s B. 1.33 m/s C. 1.25 m/s D. 13.3 m/s

A building that is 105.50 ft. feet tall is casting a shadow that is 37.50 ft. feet. If the building next to it, is casting a shadow of 41.00 ft. feet, how tall is that building?