355493 A pump motor is used to deliver water at a certain rate from a given pipe. To obtain thrice as much water from the pipe in the same time power of the motor has to be increased:

355494 An engine pumps water continuously through a hose. Water leaves the hose with a velocity \(v\) and \(m\) is the mass per unit length of the water jet. What is the rate at which kinetic energy is imparted to water?

355495 An electric lift with a maximum load of 2000 \(kg\) (lift + passengers) is moving up with a constant speed of \(1.5\;m{s^{ - 1}}\). The frictional force opposing the motion is 3000 \(N\). The minimum power delivered by the motor to the lift in watts is:\((g = 10\,m{s^{ - 2}})\)

355496 A force of \(2\hat i + 3\hat j + 4\hat k\,N\) acts on a body for 4 second, produces a displacement of \((3\hat i + 4\hat j + 5\hat k)m\). The power used is

355493 A pump motor is used to deliver water at a certain rate from a given pipe. To obtain thrice as much water from the pipe in the same time power of the motor has to be increased:

355494 An engine pumps water continuously through a hose. Water leaves the hose with a velocity \(v\) and \(m\) is the mass per unit length of the water jet. What is the rate at which kinetic energy is imparted to water?

355495 An electric lift with a maximum load of 2000 \(kg\) (lift + passengers) is moving up with a constant speed of \(1.5\;m{s^{ - 1}}\). The frictional force opposing the motion is 3000 \(N\). The minimum power delivered by the motor to the lift in watts is:\((g = 10\,m{s^{ - 2}})\)

355496 A force of \(2\hat i + 3\hat j + 4\hat k\,N\) acts on a body for 4 second, produces a displacement of \((3\hat i + 4\hat j + 5\hat k)m\). The power used is

355493 A pump motor is used to deliver water at a certain rate from a given pipe. To obtain thrice as much water from the pipe in the same time power of the motor has to be increased:

355494 An engine pumps water continuously through a hose. Water leaves the hose with a velocity \(v\) and \(m\) is the mass per unit length of the water jet. What is the rate at which kinetic energy is imparted to water?

355495 An electric lift with a maximum load of 2000 \(kg\) (lift + passengers) is moving up with a constant speed of \(1.5\;m{s^{ - 1}}\). The frictional force opposing the motion is 3000 \(N\). The minimum power delivered by the motor to the lift in watts is:\((g = 10\,m{s^{ - 2}})\)

355496 A force of \(2\hat i + 3\hat j + 4\hat k\,N\) acts on a body for 4 second, produces a displacement of \((3\hat i + 4\hat j + 5\hat k)m\). The power used is

355493 A pump motor is used to deliver water at a certain rate from a given pipe. To obtain thrice as much water from the pipe in the same time power of the motor has to be increased:

355494 An engine pumps water continuously through a hose. Water leaves the hose with a velocity \(v\) and \(m\) is the mass per unit length of the water jet. What is the rate at which kinetic energy is imparted to water?

355495 An electric lift with a maximum load of 2000 \(kg\) (lift + passengers) is moving up with a constant speed of \(1.5\;m{s^{ - 1}}\). The frictional force opposing the motion is 3000 \(N\). The minimum power delivered by the motor to the lift in watts is:\((g = 10\,m{s^{ - 2}})\)

355496 A force of \(2\hat i + 3\hat j + 4\hat k\,N\) acts on a body for 4 second, produces a displacement of \((3\hat i + 4\hat j + 5\hat k)m\). The power used is