A shooting star is a meteoroid that burns up when it reaches Earth’s atmosphere. Many of these meteoroids are quite small. A.)What is the kinetic energy of a meteoroid of mass 5.86 g moving at a speed of 48.8 km/s? b.)What is the kinetic energy of a 1066-kg car moving at 29.4 m/s (65.8 mi/h)? c.)What comparison can be drawn between the kinetic energy of the meteoroid and that of the car?

Q: Suppose a car travels 108 km at a speed of 35.0 m/s, and uses 1.80 gallons of gasoline. Only 30% of…

A: (a). The amount of work done to keep the car moving at constant speed can be calculated as follows,

Q: A 300 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 3.0 N/cm…

A:

Q: 2. A 1.0 kg particle is moving at a speed of 4.0 m/s at t = 0 s. The kinetic energy of the particle…

A:

Q: Someone drops a 63.5 g rock off of a docked cruise ship, 82.0 m from the water line. A person on a…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A 63kg skier coasts down a 30◦ slope. At the top of the slope her speed is 3.6m/s. She accelerates…

A:

Q: Suppose a car travels 108 km at a speed of 40.0 m/s, and uses 2.20 gallons of gasoline. Only 30% of…

A: a) The required force is,

Q: Jane is initially walking at a certain speed so that her kinetic energy is 150 J. Then, the rain…

A:

Q: Suppose a car travels 108 km at a speed of 40.0 m/s, and uses 2.00 gallons of gasoline. Only 30% of…

A:

Q: 5-kg mass mass is projected straight up with a speed of 15 m/s. a. To what height does the mass…

A:

Q: A 340 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 2.1 N/cm…

A: NOTE: According to the guidelines we are allowed to answer the first 3 sub-parts of a question. If…

Q: A 61.5-kg athlete leaps straight up Into the air from a trampoline with an initial speed of 9.4 m/s.…

A: Given:- mass of the athlete is m = 61.5 kg  The trampoline with an initial speed v = 9.4 m/s…

Q: A 360 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 1.0 N/cm…

A: Given that, Spring Constant, k=1.0 N/cm Mass of the Block m=0.36 kg Spring Compresses total =0.17 m

Q: (c) What is the speed of the projectile immediately before it hits the ground if air friction does…

A: C) As per the work-energy theorem, the friction’s work done can be represented as, Here, E, m, v,…

Q: Jane is initially walking at a certain speed so that her kinetic energy is 150 J. Then, the rain…

A:

Q: Suppose a car travels 108 km at a speed of 35.0 m/s, and uses 2.20 gallons of gasoline. Only 30% of…

A: Given, The energy content of gasoline is 1.30 ✕ 108 J per gallon a) F=? Volume, V=2.2…

Q: Suppose a car travels 108 km at a speed of 30.0 m/s, and uses 2.0 gal of gasoline. Only 30% of the…

A: The work done by engine of the car can be obtained as

Q: 1. What is the kinetic energy in joules of a 1000-kg automobile traveling at 90 km/h? a. What is the…

A: Given: The mass of automobile is m=1000 kg. The velocity of automobile is v=90 km/h.   The…

Q: A 0.600-kg particle has a speed of 2.00 m/s at point A and kinetic energy of 7.50 J at point B. What…

A:

Q: In the figure, a block of mass m = 2.3 kg slides head on into a spring of spring constant k = 380…

A:

Q: At NASA's Zero Gravity Research Facility in Cleveland, Ohio, experimental payloads fall freely from…

A: Mass of payload (m) = 42 kg Vertical shaft length (h) = 132 m

Q: A 340 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 2.2 N/cm…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: A person standing on the ledge of a roof of 75m high building throws a 1.5 kg ball staright up with…

A:

Q: A 46 kg bear slides, from rest, 8.9 m down a lodgepole pine tree, moving with a speed of 4.5 m/s…

A:

Q: A small 65g toy rocket is launched straight up from the ground at 120 km/h (a) What is the kinetic…

A: Given The mass of the rocket is m=65 g=65×10-3 kg. The initial velocity of the rocket is v=120…

Q: In the figure, a block of mass m = 3.90 kg slides head on into a spring of spring constant k = 320…

A: Given information: Here, m is the block’s mass, k is the spring’s constant, x is the compression,…

Q: A 49.5-kg athlete leaps straight up into the air from a trampoline with an initial speed of 9.1 m/s.…

A: At maximum height the velocity of the athlete will be zero. According to the conservation of energy…

Q: A 30 kg bear slides, from rest, 8.5 m down a lodgepole pine tree, moving with a speed of 6.0 m/s…

A:

Q: In the figure, a block of mass m = 2.70 kg slides head on into a spring of spring constant k = 440…

A: We need to find work done by spring force, increase in thermal energy of block-floor system and the…

Q: Suppose a car travels 108 km at a speed of 40.0 m/s, and uses 2.10 gallons of gasoline. Only 30% of…

A: The energy content of gasoline,

Q: A pop-up toy has a mass of 20 grams and a spring constant of 150 Newtons per meter. A Force is…

A: Mass of toy (m) = 20 grams = 0.02 kg Spring constant (k) = 15 Nm Energy stored in the spring (E) =…

Q: Suppose a car travels 108 km at a speed of 20.0 m/s, and uses 1.80 gallons of gasoline. Only 30% of…

A: The work done by a force on moving a body by a distance is given by W = F.s, where F = the force…

Q: Suppose a car travels 108 km at a speed of 40.0 m/s, and uses 1.90 gallons of gasoline. Only 30% of…

A:

Q: Does a car’s kinetic energy change more when the car speeds up from 11 to 18 m/s or from 16 to 23…

A:

Q: Suppose a car travels 108 km at a speed of 20.0 m/s, and uses 1.90 gallons of gasoline. Only 30% of…

A: Give data, Distance covered by the car, S = 108 km Initial velocity of the car, u = 20.0 m/s Total…

Q: Suppose a car travels 108 km at a speed of 25.0 m/s, and uses 2.20 gallons of gasoline. Only 30% of…

A: Given : d = 108 km = 108 x 103 m v = 25 m/s V = 2.20 gallons e = 30% = 0.30 E = 1.3 x 108 J per…

Q: A 70.5-kg hiker starts at an elevation of 1260 m and climbs to the top of a peak 2800 m high.…

A:

Q: Suppose a car travels 108 km at a speed of 30.0 m/s, and uses 2.20 gallons of gasoline. Only 30% of…

A: (A)The number of gallons of gasoline is 2.20.The percentage of gasoline goes into useful work is…

Q: 42.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 136…

A:

Q: You take a 13kg bag of lead pellets and drop it from 2m above the ground. a. How much gravitational…

A:

Q: A 2 kg block slides on a frictionless surface at 10 m/s. How much kinetic energy does it have?

A: Mass of block, m= 2 KgSurface is frictionless.Velocity,v=10 m/s

Q: The energy needed to increase the speed of a certain car from 22 m/s to 54 m/s is 2900 kJ. A) What…

A: A) From the formula to find the change in kinetic energy of a body, we know that, KE= mv2/2 2900000=…

Q: A 60.0 kg athlete leaps straight up into the air from a trampoline with an initial speed of 9.0 m/s.…

A: Given information:Mass of the athlete (m) = 60 kgInitial velocity of the athlete (u) = 9.00 m/sGiven…

Q: A horizontal force F does 80J of work on a 20 Newton box to pull it toward the right along a rough…

A:

Q: A 340 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 2.1 N/cm…

A:

Q: A 44.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of…

A:

Q: Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 90.0 kg, down a 60.0º…

A: Work done by a force over a displacement can be calculated using the following relation. W=Fd cosθ…

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.