A student pushes a box with a total mass of 50 kg. What is the net force on the box

if it accelerates 1.5 m/s2?

51.5 N.

48.5 N

75N

33.3 N

Lithium reacts with oxygen to form lithium oxide according to the equation: 4Li + 0, → 2L1,0. If 27.8 g of Li react completely with 32.0 g of Oz, how many grams of Li, are formed?

Mosses are located in which zone of deciduous forests? a. tree stratum b. ground c. shrub d. herb

Predict which current will be greater, the current passing through an electric razor or electric iron.?

A person wants to determine the spring constant of an exercise stretch cord. He pulls the cord with a force probe that exerts a 55-N force on the cord, causing it to stretch 20cm. Using the Hooke's law find the spring constant of the cord.

A jet plane leaves the stratosphere and returns to the ground. How does the temperature outside the jet change during its descent through the troposphere? A. It decreases and then increases. B. It decreases steadily. C. It increases steadily. D.

The decay constant of a radioactive nuclide is 4.6 x 10^-3 s^-1. What is the half-life of the nuclide? 2.5 min 2.0 min 1.4 min 3.6 min 3.1 min

A furlong is an old british unit of length equal to 0.125 mi, derived from the length of a furrow in an acre of ploughed land. a fortnight is a unit of time corresponding to two weeks, or 14 days and nights.

What is the unit measurement for pain relief tablets and is it SI units Or English system?

You hold a metal ring horizontally above a bar magnet standing on its end. You drop the ring and catch it before it reaches the magnet.

What do we call seismic waves that are transmitted along the outside of earth?