The most practical way to guard against allergic reactions in restaurants guests is to

A projectile is shot from the edge of a cliff 160 m above ground with an initial speed of 55.0 m/s at an angle of 40° below the horizontal. How much time does it take the projectile to hit the ground?

An 80 kg skydiver jumps out of a balloon

In the metric system, the base unit for volume is the

You throw a beanbag in the air and catch it 2.2s later at the same place you threw it. How high did it go? What was its initial velocity?

1200 kg car is being driven down a road. If it has 101 kJ of kinetic energy, what is its speed?

What about a rubber band, can it change its shape? Is it a solid?

Which two subatomic particles have approximately the same mass

A blank tells you what the different symbols and lines represent on a map

How well would a piece of hot metal heat the cool water?

Explain the difference between work and power.