Assume that the kinetic energy of a car with a mass of 1350 kg moving at 150 km/h could be converted entirely into heat. What amount of water could be heated from 25 ∘C to 48 ∘C by the car's energy? Recall that 4.184 J is required to heat 1 g of water by 1∘C
Assume that the kinetic energy of a car with a mass of 1350 kg moving at...
Assume that the kinetic energy of a 1350 kg car moving at 135 km/hr could be converted entirely into heat. What amount of water could be heated from 23 (degrees C) to 45 (degrees C) by the car's energy?
Assume that the kinetic energy of a 1000 kg car moving at 125 km/h could be converted entirely into heat.What amount of water could be heated from 16 ∘C to 52 ∘C by the car's energy? Express your answer using two significant figures.
Assume that the kinetic energy of a 1500kg car moving at 135km/h could be converted entirely into heat. What amount of water could be heated from 22?C to 55?C by the car's energy? Express your answer using two significant figures.
We learned in class that the kinetic energy (KE) of an object with mass m moving at velocity v is KE =½ m v^2. Accordingly, the kinetic energy (KE) per unit mass (m) of a body moving at velocity v is KE/m=v^2 /2. What is the asteroid’s kinetic energy per unit mass (J/kg) for an impact at this velocity? State your answer in units of J/kg. velocity is 29.8 km/s
HELP ASAP 1500kg car moving at 16 m/s suddenly collides with a stationary car of mass 1000 kg Problem3 1500-kg car moving at 16.00 m/s suddenly collides with a stationary car of mass 1000 kg a) What is the total initial momentum? b) If the two vehicles lock together, what is their combined velocity immediately after the collision? c)What is change in momentum? d)What is the impulse? e) What is the average force acting on the stationary car by the...
1. Calculate the kinetic energy of a person whose mass is 59.0 kg and is moving with a velocity of 26.5 m/s. 8 points 2. Define first law of thermodynamics. 4 points 3. How much heat could you obtain from 10.0 g of methane, CHa, assuming you have excess of oxygen. The thermochemical equation is given. CHA (6) + 20€) → CO2(g) + 2 H20 (0); AH = -890.3 kJ 10 points
A car with a total mass of 1.37 103 kg has wheels of radius 34.0 cm and moment of inertia 0.785 kg · m2. (a) Find the car's translational kinetic energy when the car is moving at a speed of 28.5 m/s. (b) Find the car's rotational energy when the car is moving at a speed of 28.5 m/s.
An object of mass 4 kg is moving in a straight line with kinetic energy 106.58 J. A force is applied in the direction of its motion for 2.7 seconds, and as a result, its kinetic energy is multiplied by a factor of 1.78. a) By what factor is its momentum multiplied? b) What was the magnitude of the force applied to the object? c) Instead of this force, if a force of the same magnitude is applied to the...
Compare the kinetic energy of a 22,000 kg truck moving at 120 km/h with that of an 81.0 kg astronaut in orbit moving at 26,500 km/h. KEtruck KE astronaut Additional Materials eBook Submit Answer Practice Another Version
Question 5.2a: A 1350-kg car is traveling with an initial speed of 26.0 m/s. Determine the car's speed after ?2.15 ? 105 J of net work is done on the car. m/s Question 5.2b: A 11.6-kg box is sliding across a horizontal floor. It has an initial speed of 1.40 m/s and the only force acting on it is kinetic friction with magnitude fk = 3.00 N. Determine the distance the box will travel before coming to rest. m