What is the weight of a person with a massa of 80kg

In an experiment to determine whether the popping of popcorn is affected by the temperature at which it is stored counting the popped kernels is an example of a

What is the lateral surface area of a cylinder with height of 7 m and a base diameter of 4 m (to the nearest whole number) ?

Janet pushes a cart, the cart with a net force of 60N. The mass of the cart was 48 kg. Calculate the carts acceleration

As heat is added to water, is it possible for the temperature measured by a thermometer in the water to remain constant?

If an object is NOT accelerating, then one knows for sure that it is ___. A. at rest B. moving with a constant speed C. slowing down D. maintaining a constant velocity

A star has a mass of 1.36 x 1030 kg and is moving in a circular orbit about the center of its galaxy. the radius of the orbit is 2.1 x 104 light-years (1 light-year = 9.5 x 1015 m), and the angular speed of the star is 1.1 x 10-15 rad/s.

Floating in deep space, you find yourself at rest next to a small asteroid. You reach out and tap the asteroid with a hammer. What happens to you in this process?

You walk forward at 1.5 m/s for 8s. Your friend decides to walk faster and starts out at 2.0 m/s for the first 4 s. Then she slows down and walks forward at 1.0 m/s for the next 4s. Make a distance-time graph of your motion and your friend's motion.

If the coolant in a refrigerator was not compressed back into a liquid after it flowed through the refrigerator what would happen

A electric model train travels at 0.339 m/s around a circular track of radius 1.75 m. How many revolutions does it perform per second, i. e, what is the motion's frequency?