A 6.50 × 10²-kg elevator starts from rest and moves upward for 3.00 s with constant acceleration until it reaches its cruis- ing speed, 1.75 m/s. (a) What is the average power of the

Q: what is the power used in this exercise?

A:

Q: B A coin sits on a rotating turntable as shown in the figure. At the time shown in the figure, which…

A: We need to say what the direction of friction will be on the coin on turntable.

Q: 11) A 45 kg. girl is sitting on a seesaw 0.6 m from the other side, should a 60 kg. boy sit so that…

A:

Q: Power is the rate of change in energy, regardless of whether the change is due to transformation,…

A: The rate of change in energy is called power. Energy cannot be destroyed, it can be transferred or…

Q: A uniform magnetic field with B = 2.7i [T] passes through a hemispherical shell oriented with the…

A: Magnetic flux is a measure of the strength of a magnetic field passing through a given area. It is…

Q: Find the currents flowing in the circuit in the figure below. (Assume the resistances are R, = 8 N,…

A: Given a circuit R₁ = 8 ohm, R₂ = 20 ohm, R3 = 15 ohm, R4 = 12 ohm, r1 = 0.5 ohm, r2 = 0.5 ohm , r3 =…

Q: In a longitudinal wave, what is the area where molecules are "bunched" together called? What is a…

A: 5) in a longitudinal wave the point at which molecules are bunched to geteher  is called…

Q: Which one of the following is NOT the unit of power? Watts Íb/s Nm/s O J/s

A: Power is rate of change of energy.

Q: What is the speed of electricity?

A: The word electricity  generally refers to the movement of free electron within conductor in presence…

Q: 124. The diagram below represents a 10.-newton block sliding at constant speed down a plane that…

A: Since object is moving with constant speed hence acceleration acting on it is zero so net force…

Q: electric field

A: Given: Mass of particle is m=2.5 g Charge on particle is q=-13 μC The particle is placed in uniform…

Q: 3. A box (mass = 100 g) is initially connected to a compressed (x = 80 cm) spring (k = 100 N/m) at…

A:

Q: Which of the following is not a unit of power? O J/s O N'm O horsepower Watts

A:

Q: We define power as the amount of done in a given amount of

A: When work is done equal amount of energy is transferred or consumed. Power is defined as the rate of…

Q: Determine the work done by an electric motor lifting an elevator and its occupants weighing 2200 lb…

A: weight = m g = 2200 lbdistance between each floor = 15 fttotal height = h = 5 x 15 = 75 ft

Q: A cylindrical water tank of radius 12 ft and height 16 ft is half-filled with water. How much work…

A:

Q: State law of conservation of energy.

A: Statement of Law of conservation of Energy:The law of conservation of energy states that energy can…

Q: The unit of Power (P) is

A: We have to answer the unit of Power (P)

Q: Question 8: A rectangular loop of wire wraps around your (open, vertical) laptop screen (31.0 cm by…

A:

Q: Transverse waves on a string have a wave speed of 8 m/s, amplitude 0.07 m and wavelength 0.32 m. The…

A:

Q: could you help me with these please

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Power is defined as the rate of that is done per unit of

A: In Physics, Power is the rate of doing work. The unit of power is Watt.