URGENT I cannot express how thankful I am for whoever is nice enough to help me A) A cart loaded with bricks has a total mass of 13.4 kg and is pulled at constant speed by
a rope. The rope is inclined at 21.1° above
the horizontal and the cart moves 17.2 m on
a horizontal floor. The coefficient of kinetic
friction between ground and cart is 0.3.
The acceleration of gravity is 9.8 m/s.
What is the normal force exerted on the
cart by the floor?
Answer in units of N.
B)
How much work is done on the cart by the
rope?
Answer in units of kJ.
C)
Note: The energy change due to friction is a
loss of energy
What is the energy change W, due to fric-
tion?
Answer in units of kJ.

Aplane flies a distance d from west to east at a constant speed vp , with respect to the air in a time twe . on the return trip, the plane flies a distance d from east to west at a constant speed vp , with respect to the air in a time tew . on both trips the wind blows from west to east at a constant speed va , with respect to the ground 1) what is tew in terms of vp, va, and d, as needed? tew=dvp tew=dvp+va tew=dva tew=dvpâ’va tew=12dvp tew=12dvp+va tew=12dvpâ’va your submissions: b submitted: saturday, january 26 at 6: 49 pm feedback: feedback will be given once all questions have been attempted and the grade cluster button has been pressed. 2) what is twe in terms of vp, va, and d, as needed? twe=dvp twe=dvp+va twe=dva twe=dvpâ’va twe=12dvp twe=12dvp+va twe=12dvpâ’va your submissions: d submitted: saturday, january 26 at 6: 49 pm feedback: feedback will be given once all questions have been attempted and the grade cluster button has been pressed. 3) assuming d = 2300 miles, vp = 400 miles/hr, and twe = 4 hours, what is va, the speed of the wind with respect to the ground? va = 100 miles/hr va = 575 miles/hr va = 200 miles/hr va = 175 miles/hr va = 975 miles/hr 4) once again, assuming d = 2300 miles, vp = 400 miles/hr, and twe = 4 hours, what is tew, the time it takes the plane to fly a distance d miles from east to west? tew = 5.75 hours tew = 11.5 hours tew = 7.67 hours tew = 8 hours tew = 10.2 hours

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

What you see with your eyes is a form of energy. a. light b. heat c. chemical d. electrical