Bdle

A 2.7 kg solid cylinder (radius = 0.10 m , length = 0.50 m ) is released from rest at the top of a ramp and allowed to roll without slipping. The ramp is 0.80 m high and 5.0 m long.

b.) When the cylinder reaches the bottom of the ramp, what is its rotational kinetic energy?

c.)When the cylinder reaches the bottom of the ramp, what is its translational kinetic energy?

Can some one work this problem out step by step. Thanks!

A disk and a hoop of the same mass and radius are released at the same time at the top of an inclined plane. The height of the incline is 0.66 m .

B.) Calculate the speed of the HOOP at the BOTTOM of the inclined plane?

Can someone work this problem out step by step so that I can better understand it. Thanks!

The base of a solid is triangular region bounded by the y-axis and the lines x+2y=4, x-2y=4

Find the volume of the solid given that the cross sections perpendicular to the x-axis are :

a.) squares

b.) isosceles right triangles with hypotenuse on the xy-plane.

Can someone plz work this out step by step so that I can better understand?..Thanks!

After a small take off, a 50 ton airliner climbs from sea level to an altitude of 8000 m while int he same time acceleration from 100m/s to 250 m/s. Assume the total drag force on the airplane remains constant at 50kN and that the length traveled along its trajectory is 200 km. Note: Assume aerodynamic drag forces behaves exactly like kinetic friction.

B.) A small bat catches an insect in flight. To calculate the velocity of the bat AFTER the capture one should use which of the following?

the conservation of energy

the conservation of momentum

both

either one or

information about the angle at which they collide

Can someone work out the first problem and explain it to me step by step

and also explain the second problem. Thanks!

A hollow cylinder of mass M=5kg and radius R=20 cm rolls down a roof without slipping and with negligible rolling resistance. The cylinder starts from rest at the top of the roof, which has a height of h=3m.

B.) Find its angular speed at that same moment

C.) Explian what force causes the cylinders angular acceleration as it rolls down the roof?

Can some one work his problem out and explian it step by step. Thanks!

A 4.0 kg eagle soars 100m above the ground at a speed fo 30m/s when it starts a dive to catch a mouse. The work done by the eagles wings during the dive is +1400J

B.) If the eagles trajectory is an arc of a circle of radius 200m calculate its centripetal acceleration right before the catch?

C.) What is the lift generated by the eagles wings at that moment?

The given vertices

(0,0) (1,3) (3,1)

Can someone please solve this problem step by step so that I can better understand. Thanks!

A rod 6 meters long is placed on the x-axis from x=0 to x=6. The mass density is 12/sqrt(x+1) kilograms per meter

B.) what is the average mass density of the rod?

Can someone please work this problem out step by step., so that I could better understand. Thanks!

How could of solve this problem given the information.

Suppose the block has a mass of 3.1 kg, the spring has a force constant of 550 N/m , and the coefficient of kinetic friction between the block and the floor is 0.15.

On the number line A=0 B=2.0 cm

Path 2 goes down from point A, hooks a left then down a little again then hooks a right.

B.) Find the work done on the block by the spring and by friction if the block is moved DIRECTLY from point A to point B?

The two masses in the Atwood's machine have an initial speed of v = 0.17 m/s, and m2 is moving upward.

m1=3.0 kg m2=4.6 kg

A force of 4.5 N is required to stretch a certain spring by 1.4 cm.

Can someone work this out for me step by step, Thanks!

A buffer is prepared by mixing 454 mL of 0.464 M HCl with 967 mL of 0.827 M ammonia (NH3). Given that the Kb of NH3 is 1.8 x 10^-5, calculate the pH of the solution

of 46.8 mL of 0.138 M acetic acid by 0.213 M KOH. The Ka of CH3COOH is 1.8 x 10-5.

Can someone work this our for me step by step b/c i do not understand where I am getting some of the values from. Thanks!

That is 0.014 M HClO and 0.038 M KClO. GIVE YOUR ANSWER TO 1 DECIMAL PLACE AND IN SCIENTIFIC NOTATION.

Ka of HClO is 3.0 x 10^-8.

x= pi/4, 0 y= 2sec^2(x) dx

Can someone explain this problem step by step. Thanks

Can someone please solve this for me step by step thanks

I do not know how to enter this on the calculator an someone help me

A 0.00730 mol sample of a weak acid, HY, is dissolved in enough water to form 0.0684 L of solution. If the pH of the solution is 2.03, what is the Ka of HY?

I need to solve this problem but i cannot b/c I do not know how to punch that in

At t= 1.0 seconds, a 0.83 kg object is falling with a speed of 6.0 m/s . At t=2.0 seconds, it has a kinetic energy of 25 J

b.) What is the speed of the object at t=2.0 seconds?

c.) How much work was done on the object between t=1.0 seconds and t=2.0 seconds?

can someone work this out for me. the last person who did it did not read the question right. Thanks!

At t= 1.0 seconds, a 0.83 kg object is falling with a speed of 6.0 m/s . At t=2.0 seconds, it has a kinetic energy of 25 J .

b.) What is the speed of the object at t=2.0 seconds?

c.) How much work was done on the object between t=1.0 seconds and t=2.0 seconds?

Can someone work this our for me step by step so that I can better understand it? Thanks!