Classify the following elements as halogens alkali metals alkaline earth metals, transition elements or inner transitional elements calcium, gold, iron, magnesium, plutonium, potassium, sodium and uranium

A constant force of 10 N is applied to an object. The object accelerates at a constant rate of 4 m/s2. What is the mass of the object?

A motor must lift a 1500-kg elevator cab. The cab's maximum occupant capacity is 400 kg, and its constant "cruising" speed is 1.3 m/s. The design criterion is that the cab must achieve this speed within 2.

Julianna blows air onto the balloon to inflate it what can be known about the atoms of the air

What is meant by the ""total magnification"" of a microscope? How do you calculate it?

A refrigerator has a coefficient of performance equal to 4.2. How much work must be done on the refrigerator in order to remove 250 J of heat from the interior?

According to a college survey, 22% of all students work full time. find the mean for the number of 3) students who work full time in samples of size 16.

How Much Potential Energy Does A 50kg block of Ice a Height of 4m Have?

In a summer storm the wind is blowing with a velocity of 8m/s north. Suddenly in 3 seconds, the winds velocity is 23m/s north. What is the winds acceleration?

How does a bicycle rider's energy of motion changes as the gain speed while riding down a hill? Options: A) It is lost. B) It increases. C) It remains the same. D) It is stored in the bicycle rider.

When is a sailboat the stand on vessel in relations to a recreational power boat?