A shopping cart is pushed forward with a force of 60 N. The mass of the cart is 60 kg. The force of friction on the cart is 25 N.

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

Increasing the pressure on one spot of a fluid will increase the pressure everywhere else in the fluid a. pascals principal b. archimedes' principal c. bernoulli's principal

The velocity of sound wave in air at 35°c is 353m/s, calculate the velocity of sound at 46°c