Multiple Choice
Force exerted by bat on ball if it strikes a ball of mass 0.16 kg initially hits bat with speed of 25 m s-1 with time impact of 0.003 s is {{}}
A) 145 N
B) 1333.33 N
C) 1456.7 N
D) 6543 N
Correct Answer:

Verified
Correct Answer:
Verified
Q10: Contrast media consist of elements with<br>A)lower atomic
Q11: A sound wave which has frequency higher
Q12: In x-ray production, the kinetic energy of
Q13: Wavelength of 2.0 MHz ultrasound waves in
Q14: Maximum energy an x-ray photon can have
Q16: Change in speed of ultrasound causes<br>A)reflection<br>B)diffraction<br>C)refraction<br>D)image
Q17: Intensity of x-rays can be increased by
Q18: Bone thickness is equal to {{}}<br>A)cΔt/2<br>B)cΔt<br>C)c/t<br>D)t/2
Q19: Thickness of material which decreases intensity of
Q20: Momentum of electron having mass 9.1 ×