Which object absorbs the most visible light?

O a clear bowl

O a white rock

O a black t-shirt

O a red apple

How fast must an object move before its length appears to be contracted to one-fourth its proper length?

Describe what would happen if while wearing rollerskates you pushed as hard as you could against the wall. why does this happen

Echolocation is an acoustic principle in which some wildlife use resonance to find food at night. Question 25 options: True False

A 747 airliner reaches its takeoff speed of 173 mi/h in 35.2 s. what is the magnitude of its average acceleration

A car has a unibody-type frame and is supported by four suspension springs, each with a force constant of 47100 N/m. The combined mass of the car's frame and everything inside it (the engine, the seats, the passengers, etc.) is 1190 kg.

A merry-go-round rotates with a centripetal acceleration of 15 m/s2. If the outer horses are 7 m from the center of the ride, what is their velocity? O A. 11.8 m/s O B. 10.2 m/s O O C. 9.6 m/s D. 8.4 m/s

Which is not a part of the walking mechanism of the human body? a rigid bar a fulcrum a resistance a gear

Based on the periodic table above, which of the following elements is a metal?

Car crosses the first third of the road with unknown speed and the rest of the road with the speed of 50 km/h. What is the the speed in the first third if the average speed of a car is 30km/h?

1. A car speeds up from 10.0 m/s to 45.0 m/s in 4.0 s. What is its acceleration? In your response, show your work, the given and unknown quantities, the equation, and any necessary algebra.