CASE 8 Grade Science Do Not Reproduce
5.
Volcanic explosions are often associated with widespread destruction to nearby
landscapes and inhabited areas. The explosions occur without much warning, but
experts claim that some long-term precautionary measures can be taken in active
volcanic zones.
What long-term measure can be adopted for the safety of inhabitants residing close to
an active volcano?
A Areas near volcanoes should be abandoned during the summer months when volcanoes are
most active.
B The area around the volcanic cone should be covered with trees and other vegetation to
reduce the intensity of lava flow.
C Regular monitoring practices should be planned along with evacuation protocols.
D A larger number of hospitals should be built in the area to treat any potential injuries.

Which surface feature of the moon is characterized by mountainous areas? terrae craters maria regolith

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?

Aball is thrown upward. at a height of 10 meters above the ground, the ball has a potential energy of 50 joules (with the potential energy equal to zero at ground level) and is moving upward with a kinetic energy of 50 joules. what is the maximum height h reached by the ball? consider air friction to be negligible. 1. h ≈ 10 m 2. h ≈ 50 m 3. h ≈ 30 m 4. h ≈ 40 m 5. h ≈ 20 m 003 10.0 points which of the two object shown below has the greatest kinetic energy? a m b 1 2 m v 2v 1. kinetic energies are the same. 2. a 3. b 4. unable to determine. 004 10.0 points tim, with mass 74.6 kg, climbs a gymnasium rope a distance of 3.1 m. the acceleration of gravity is 9.8 m/s 2 . how much potential energy does tim gain? answer in units of j. 005 10.0 points a car is moving at 64 miles per hour. the kinetic energy of that car is 5 × 105 j. how much energy does the same car have when it moves at 111 miles per hour? answer in units of j. 006 10.0 points an 102 kg man climbs up a 1 m high flight of stairs. the acceleration of gravity is 9.81 m/s 2 . w