A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30° below the horizontal just before it strikes a horizontal surface. The ball leaves this surface 0.50 s later with a velocity of 2.0 m/s directed 60° above the horizontal. What is the magnitude of the average resultant force on the ball?
a. 14 N
b. 11 N
c. 18 N
d. 22 N
e. 3.0 N
b
Physics & Space Science
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A conducting loop in the form of a circle is placed perpendicular to a magnetic field of 0.50 T. If the area of the loop decreases at a rate of 3.0 × 10-3 m2 /s, what is the induced emf in the loop?
A) 1.7 mV B) 4.3 mV C) 5.5 mV D) 0 mV E) 1.5 mV
Physics & Space Science
Light strikes a diamond (n = 2.42) at an angle of 60° relative to the normal to the surface. What is the angle of refraction?
a. 21° b. 30° c. 38° d. 69° e. 71°
Physics & Space Science
A Diesel engine uses adiabatic heating to ignite the fuel
Indicate whether the statement is true or false
Physics & Space Science
Calculate the radius in nanometers of the Bohr orbit of a hydrogen atom's electron with n = 6
Physics & Space Science