An “energy bar” contains 22 g of carbohydrates. If the energy bar was his only fuel, how far could a 68 kg person walk at 5.0 km/h?

Q: In a bicycle race, a rider such as Lance Armstrong (mass = 70 kg) uses energy at a rate of 6.0 W/kg…

A:

Q: A roller coaster features a near vertical drop of 150 meters. If the initial velocity was zero, the…

A:

Q: An 68.0-kg man eats a banana of energy content 436 kJ (104 kcal). If all of the energy from the…

A:

Q: Determine the number of Calories required to power the heart for one day, given that 1 Calorie…

A:

Q: Flapping flight is very energy intensive. A wind tunnel test on an 89 g starling showed that the…

A:

Q: A bucket with mass 2 kg begins holding a mass of 30 kg of sand. The bucket is to be lifted to the…

A: Given values -  Weight of rope is negligible hence -

Q: A box with a mass of 85kg is sliding horizontially at 17m/s when it reaches a ramp with an incline…

A:

Q: A kid on a bike coasts (No Pedaling) from the bottom to the top of a 25 m hill. What is the energy…

A: Given: The kid goes from bottom to top. The height of the hill is 25 m.

Q: A man lifts a pail of water of mass m= 3 kg upward at a constant speed of 2 m/s for 5 s. What is the…

A: Given that: Mass of the pail of water, m=3 kg Speed , v=2 m/s time taken, t= 5s

Q: A new ride being built at an amusement park includes a vertical drop of 71.6 meters. Starting from…

A:

Q: We heat about a cup (244 g) of milk (we’ll treat it like water, with a specific heat of 4186 J/kg…

A:

Q: A leaky bucket which initially has 20 L of water and leaks at a constant rate is hanging from a 60 m…

A:

Q: A crate of mass 9.0 kg is pulled up a rough incline with an initial speed of 1.42 m/s. The pulling…

A:

Q: Samantha wishes to maintain her weight and goes to the gym to work off the calories she consumed at…

A:

Q: Under normal conditions the human heart converts about 12.7 J of chemical energy per second into…

A:

Q: Flapping flight is very energy intensive. A wind tunnel test on an 89 g starling showed that the…

A:

Q: A bird (m=250g) is flying through the sky at 10m/s, if the birds total energy is 1000J, what is his…

A: Given data:  Mass (m) = 250 g = 0.250 kg Velocity (v) = 10 m/s Total Energy (TE) = 1000 J  Required:…

Q: Macie and Lala bought a brand new blender to make their favorite slush this summer season. This 2.75…

A: Macie and Lala bought a brand new blender to make their favorite slush this summer season. This 2.75…

Q: A 74-kg boy is surfing and catches a wave which gives him an initial speed of 1.6 m/s. He then drops…

A:

Q: A hiker wearing a backpack with combined mass of 100 kg is climbing Mount Washington in New…

A: (a). Given,m=100kg, h2=1917m, h1=820m.

Q: Sam lifts a box with a weight of 12 N to a height of 2 meters. (E-S-A is only necessary for Part…

A:

Q: 14.A crate of mass 10.0 kg is pulled up a rough incline with Man initial speed of 1.50 m/s. The…

A: a)Work done by gravity is,

Q: A new ride being built at an amusement park includes a vertical drop of 71.6 meters. Starting from…

A: The potential energy of the cart-passengers system can be calculated as,

Q: A child of mass m starts from rest from the top of the water slide. The water slide is 7.6 meters…

A: SOlution:

Q: student

A: Data provided:   Constant Speed (v) = 4.36 m/s Frictional and drag force (Fr) = 40.6 N Asked: The…

Q: Under normal conditions the human heart converts about 12.7 J of chemical energy per second into…

A:

Q: 7. (a) –168 J (b) 184 J (c) 500J (d) 148 J (e) 5.65 m/s

A:

Q: Your 1,221 kg car, moving at 6 m/s, approaches the bottom of a hill that is 24 m high. To save fuel,…

A:

Q: A crate of mass 11.0 kg is pulled up a rough incline with an initial speed of 1.48 m/s. The pulling…

A: Note : Since question has multiple sub-parts, we can only give solutions to first three sub-parts.…

Q: A girl weighing 470 N, holds suspended on the end of a rope 8 meters long. What will be her gain in…

A: Given data: The weight of the girl, W=470 N. The length of the rope, l=8 m. The angle made by the…

Q: While running, a person dissipates about 0.600 J of chemical energy to mechanical energy per step…

A:

Q: Kangaroos have very stout tendons in their legs that can be used to store energy. When a kangaroo…

A: From the graph, the energy consumed per second to attain the speed of 4 m/s by a kangaroo is greater…

Q: 09: A person trying to lose weight by burning fat lifts a mass of 10 kg up to a height of 1 m 1000…

A:

Q: A bucket is filled with sand so that the total mass (sand and bucket) is 15 kgs. The bucket is to be…

A: