An object of mass m slides down an incline with angle e. Which expression

shows the net force on the object perpendicular to the surface of the incline?

O A. mg cos (0)

O B. Fn-mg sin (e)

O c. mg sin (e)

O D. Fw-mg cos (0)

A cold front is moving toward the town of La Porte at 35 km/h. The front is 200 km away from LA Ports. How long will it take the front to get to LA Ports?

A scene in a movie has a stuntman falling through a floor onto a bed in the room below. The plan is to have the actor fall on his back, but a researcher has been hired to investigate the safety of this stunt.

Which of the following describes temperature

1. if you rub a neutral glass rod with silk, the silk acquires a negative charge. if you rub a neutral glass rob with a rubber rob, the rubber rod acquired a negative charge.

A baseball pitcher loosens up his pitching arm. He tosses a 0.20-kg ball using only the rotation of his forearm, 0.28 m in length, to accelerate the ball.

Voltage can exist without A. current. B. resistance. C. a closed circuit. D. all of these

During a football game, a receiver has just caught a pass and is standing still. Before he can move, a tackler, running at a velocity of 2.60 m/s, grabs and holds onto him so that they move off together with a velocity of 1.30 m/s.

What effect does an increase in temperature have on viscosity?

Aman tosses a jart upward with a velocity of 14.1 m/s a 60° angle

Describe accuracy, precision and best fit line.