You are driving home from school steadily at 97 km/hkm/h for 160 kmkm. It then begins to rain and you slow to 61 km/hkm/h instantly. You arrive home after driving 4.5 hours. How far is your hometown from school? answer using two significant figures.

Q: The Sojourner rover vehicle shown in the sketch below was used to explore the surface of Mars as…

A: Given data:  Power (P) = 10 W Energy (E) = 3.6×107 J Required: Time (t) in hours

Q: A weightlifter lifts an 110-kg barbell at a height of 2.3 meters above the ground. If it took 3.1…

A:

Q: A object weighing 33 kg goes up a 7 meter hill. If 231 J of thermal energy ar created how fast was…

A: Given, Mass, m=33kg Height, h=7m According to the conservation of energy,   12mv2=mgh+231

Q: The graph shows the electrical energy consumption of a typical household over the period of 24 h,…

A: Power:  Power can be defined as the time rate of consumption of energy. Mathematically, P=∆E∆t where…

Q: What is the kinetic energy in J of a 60.3 gram tennis ball approaching a tennis racket at 20.0 m/s ?

A: GivenMass m = 60.3 g = 60.3 x 10-3 kgVelocity v = 20.0 m/s

Q: What is the energy ?E required to accelerate a 1645 kg1645 kg car from rest to 27 m/s? Compared to…

A: From work energy theorem, the net work done is equal to change in kinetic energy .Write the…

Q: How much energy is required to move a 1250 kg object from the Earth's surface to an altitude twice…

A:

Q: The potential energy of a 40-kg cannon ball is 14000J. How high was the cannon ball to have this…

A: Given data: Mass of the ball (m) = 40 kg Potential energy of the ball (PE) = 14000 J Need to…

Q: How much does the gravitational potential energy of a 1.2 kg object increase if you lift it upward…

A: Given: The mass of the object is 1.2 kg. The height from the ground is 30 cm.

Q: How do you find the escape velocity for objects on the planet Venus?

A: Gravitational force  F = (GmM)/R2   m= mass of the object M = mass of the Venus G = gravitational…

Q: work and energy. What is conservation of mechnical

A:

Q: A conveyor belt uses 5 newtons​ [N] of force to move a 34 kilogram​ [kg] box to a velocity of 2.05…

A: We know As force is constant, Work done would be : W=Force.displacement=F.d=5dAnd as box reaches a…

Q: Ball A moves at 5.1 meters per second. Its mass is 17.2 grams. Ball B weighs 13.8 grams. How fast…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: Large meteors sometimes strike the Earth, converting most of their kinetic energy into thermal…

A:

Q: What is the kinetic energy of a 4 kilogram cat runnig at 5 m/sec ?

A: given that,mass of cat, m=4 kgvelocity of cat, v=5 ms

Q: If mars has a mass of 6.4 x 1023 kg and a radius of 3.39 x 106m. What is the escape speed needed…

A:

Q: In the formula W=F x d the work is measured in joules. What metric units does joules stand for?

A: Given: W = F x d

Q: How much potential energy due to gravity would a person have if he is standing on top of the…

A: Given that: Height of building, h=100 cm=1 m Mass of the person, m=100 kg

Q: A motorcycle is moving at 14 m/s when its brake is applied, bringing the cycle to rest in 4.1 s. To…

A: Given The initial speed of the motorcycle is u = 14 m/s. The time is taken by the motorcycle to…

Q: There's a good chance you're completing this HW on a laptop. A typical laptop uses about 15 W of…

A: How much energy does the laptop battery hold when it is fully charged? Given, Power(P)=15 W…

Q: c) kinetic energy of the object

A: Option - c

Q: Consider the energy we use everyday in routine tasks, where that energy comes from, and where it…

A:

Q: A 1kg cannon ball is fired horizontally with an initial velocity of 5m/s. If the cannon was atop a…

A: Given: Mass of a canon m = 1 kg. Velocity of firing canon v = 5 m/s. height of canon h = 20 m.

Q: How much power is required to lift a 3061 g chair at a height of 0.20 m in 2 s?

A: Mass of chair = 3061 gm = 3.061 kg. Weight = 3.061 ×9.8 = 30 N Workdone to lift the chair to 0.2 m…

Q: A weight lifter raises a 100 kg barbell to a height of 2 m. what is the barbell's potential energy?…

A:

Q: what are two ways an object can gain more gravitational potential energy

A: Gravitational potential energy - Gravitational energy or gravitational potential energy is the…

Q: A 86.27 kg object has a gravitational potential energy of 1,981 Joules.  How high above the ground,…

A: Given data:  Mass (m) = 86.27 kg Potential Energy (PE) = 1981 J Required: The height (h) above the…

Q: A car moving at 50km/h skid 15m with locked brakes. How far will the car skid with locked brakes at…

A: Given information:Given initial speed (u1) = 50 kmphFinal speed (v1) = 0 kmphDistance it slides (s1)…

Q: How much power is required to lift a 30 N chair 0.20 m in 2 s?

A:

Q: An object is 5m high and has a mass of 2kg. How much PE will it have on moon where acceleration is 2…

A: 50 J

Q: A cable with a mass of 3kg/meter is used to lift a 200kg load from the bottom of a 150 meter shaft.…

A: Given:-  The mass per unit length of the cable is mL=3kg/m The mass of the load is M = 200kg  The…

Q: Calculate how high a 35 kg child must be to have an energy gravitational potential of 450 J.

A: The gravitational potential energy of a mass M at a height H above the surface of the earth is U =…

Q: What will be the potential energy of 1kg mass kept at height of 5 m. Take g = 10 m/s²

A: