data

One key factor that can reduce social loafing appears to be:

the presence of an audience

individual accountability

the strength of the leader

the longevity of the group

Determine the frequency for the equation: 

y = 7.00sin(275t-6.0), 6.0 is in radians and 275 is in radians/sec

Round your answer to three decimal places

Determine the period for the equation: 

y = 2.00sin(302t-1.0), 1.0 is in radians and 302 is in radians/sec

Round your answer to three decimal places

A jewel thief hides a diamond by placing it on the bottom of a public swimming pool. He places a circular raft on the surface of the water directly above and centered over the diamond, as shown in the figure below. If the surface of the water is calm and the pool is h = 2.70 m deep, find the minimum diameter of the raft that would prevent the diamond from being seen.
 m

1. who was the first prime minister of India?

A light ray is incident normally to the long face (the hypotenuse) of a 45°–45°–90° prism surrounded by air, as shown in the figure below. Calculate the minimum index of refraction of the prism for which the ray will totally internally reflect at each of the two sides making the right angle.

Light containing wavelengths of 400 nm, 500 nm, and 650 nm is incident from air on a block of crown glass at an angle of 48.7°. (Assume crown glass has refractive indices of 

n400 nm = 1.53,

n500 nm = 1.52,

 and 

n650 nm = 1.51.) (a) Are all colors refracted alike, or is one color bent more than the others?
400 nm light is bent the most500 nm light is bent the most    650 nm light is bent the mostall colors are refracted alike
(b) Calculate the angle of refraction in each case to verify your answer. (Enter your answer to at least two decimal places.)
𝜃400 nm =  ° 𝜃500 nm =  ° 𝜃650 nm =  °

3. A police car is approaching you with its siren sounding apparently at 350 Hz. When it reaches you, the police car stops and the frequency of the siren is now 300 Hz. If the air temperature is 48.0 C, how fast was the police car travelling when it was approaching you? (4 marks)

4. Oscar the Grouch drops Slimey into a mine shaft 200m deep. If the temperature is 15.0C, how much time will elapse between the moment when the stone is released and the moment when the sound of the stone hitting the bottom of the mine shaft is heard?

complete the following reaction:

A speaker is rated at 200W and creates a sound waves spherically around it. Determine the intensity of the sound waves at the distance of 1.0m in front of the speaker.

Sandy invest $1500 into an account with 3.5% interest, compounded quarterly. How much money will be in the account after 8 years? 

Juan invests $3700 in a simple interest account at a rate of 4% for 15 years. How much money will be in the account after 15 years?