Other Physics Answers

An object is projected from the ground with an initial velocity of 20.25 m/s at 50degrees above the horizontal. Find the following. (Show your complete solution.)                               a. Horizontal and vertical components of its initial velocity              b.. Time to reach the maximum height                          c. Range

Polarized glasses counter the glare from metallic surfaces by not allowing light of a particular orientation to pass through.True or False

Frame A is stationary. A ball is fired in the x-direction with a speed of 5 m/s. If Frame

B is moving along the same direction as the ball with a speed of 11 m/s, in which

reference frame is the ball moving faster?

sec/ohm is equal to

a ball was pushed by a force of 17.27 newton going to east. and travels a certain distance of 0.05678 kilometer in 0.033 minute. find the ball's momentum

149600000 km is equivalent to:

A) 149.6 Gm

B) 1.496 Tm

C) 149.6 Mm

D) 1.496 nm

The wavelength of red light is approximately 650 nanometres. This is equivalent to:

A) 650 000,000,000 m

B) 0.00000000065 m

C) 0.65 μm

D) 0.065 mm

The unit for the Young modulus is:

A) mm/m

B) %

C) Nm^-1

D) Nm^-2

The correct answer to 2 ×10⁷ × 8 ×10^-12 in standard form is:

A) 1.6 x 10^-4

B) 16 x 10¹⁹

C) 1.6 x 10¹⁹

D) 16 x 10^-5

Planck’s constant is given in Wikipedia as 6.62606957x10^-34 Js. How many significant figures is this?

A) 10

B) 9

C) 8

D) 7