it might dangerous to raise an umbrella in a storm

Sally travels by car from one city to another. She drives for 26.0 min at 81.0 km/h, 46.0 min at 30.0 km/h, and 46.0 min at 52.0 km/h, and she spends 11.0 min eating lunch and buying gas. a) Determine the average speed for the trip.

A parallel-plate capacitor has square plates that are 7.20 cm on each side and 3.40 mm apart. The space between the plates is completely filled with two square slabs of dielectric, each 7.20 cm on a side and 1.70 mm thick.

When a ball is dropped it bounces until it eventually stops why does this happen A) some of the balls energy is lost B) some of the balls energy is converted to other forms such as thermal and sound C) all of the balls energy is eventually converted

Which of the following is true about all electromagnetic waves in a vacuum

What type of wave is a sound?

What is the formula of the most stable oxide of francium? A) Fr2O B) Fr2O3 C) FrO D) FrO2

17. A ranger needs to capture a monkey hanging on a tree branch. The ranger aims his dart gun directly at the monkey and fires the tranquilizer dart. However, the monkey lets go of the branch at exactly the same time as the ranger fires the dart.

Suppose a car is traveling at + 25.0 m/s, and the driver sees a traffic light turn red. After 0.340 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 7.00 m/s2.

Difference b/w polarized and unpolarized ligjt

Red and blue light are simultaneously passed through a diffraction grating. The first-order maxima for the red light is located 20 cm from middle of the central bright fringe.