Which explanation best describes a wave?
A. a disturbance that travels through a medium with a transfer of energy and matter
B. a disturbance that travels through a medium without a transfer of energy and matter
C. a disturbance that travels through a medium with a transfer of energy and without a transfer of matter
D. a disturbance that travels through a medium with a transfer of matter and without a transfer of energy
E. a disturbance that travels only in the absence of a material medium
A large body collides with a stationary small body from the rear end. How do the bodies behave if the collision is inelastic?
a. the bodies collide and then separate
b. the bodies stick and move together
c. the large body stops, and the smaller body starts moving
d. the small boy will not move
e. the large body will start moving in the opposite direction
(Will give brainliest) The values of the impulse and the time interval for various collisions are listed in the table. In which case is the force maximum?Collision Impulse (kilogram•meters/second) Time Interval (seconds)
A 10,000 10^+3
B 1,000 10^+2
C 100 10^+1
D 10 10^0
E 1 10^-2
A) a
B) b
C) c
D) d
E) e
The landing of a spacecraft is cushioned with the help of airbags. During its landing on Mars, the velocity of downward fall is 16 meters/second. Immediately after the impact, the velocity is reduced to 1.2 meters/second. If the spacecraft has a mass of 11.5 × 104 kilograms, what is your estimate for the impulse if the time of impact is 0.8 seconds?
A car with a mass of 1.1 × 103 kilograms hits a stationary truck with a mass of 2.3 × 103 kilograms from the rear end. The initial velocity of the car is +22.0 meters/second. After the collision the velocity of the car is -11.0 meters/second. What is the velocity of the truck after this elastic collision?
A.+13 meters/second
B.+20 meters/second
C.+15.7 meters/second
D.+7.5 meters/second
E.+9.8 meters/second
Imagine a mass hanging from a spring that behaves ideally. Which factor will not affect the period of this mass-spring system?
a. varying the displacement of the mass from its equilibrium position
b. changing the weight of the mass attached to the spring
c. changing the strength of the spring (its spring constant)
d. increasing the amount of time the oscillating system is observed
e. keeping track of the precise position of the mass through time
How are period and frequency related to each other?
A. Period is half the frequency.
B. Period is twice the frequency.
C. Period is equal to frequency.
D. Period is the reciprocal of frequency.
E. Period is the square root of frequency.