If object weighs 30 n on the earth whatvis its mass

The velocity of sound in air saturated with water vapour at 30°C is 340 m/s. If the atmospheric pressure is 65cm of mercury and saturated vapour pressure of water at 30°C is 31.7 mm of mercury. Calculate the velocity of sound in dry air at 0°C.

Jack stands at rest on a skateboard. The mass of Jack and the skateboard together is 75 kg. Ryan throws a 3.0 kg ball horizontally to the right at 4.0 m/s to Jack, who catches it. What is the initial momentum of the system in kg m/s?

When you are ice skating, to get started, you push your skate backwards on the ice and, as a result, begin to move forward. Which law of motion is being described in this scenario?

How much does an 18 wheeler trailer weigh?

Why are plate tectonics a theory?

How do you determine the speed or velocity of an object using a distance vs. time graph

What is the median of 5 12 7 15 3 6 1

If you double the velocity of an object, you increase its kinetic energy by a factor of what?

2. Modern aircraft carriers use a steam powered catapult system to launch jets from a very short range. These catapults can provide a constant acceleration to bring jets up to speed in only two seconds.

Which of these best describes a situation where science is used? A. choosing a career after graduation B. brushing teeth after having dinner C. ordering food in a restaurant by looking at a menu card D.