How many grams of matter would have to be totally destroyed to run a 100-W lightbulb for 3.0 y? Express your answer using two significant figures. m = ΜΕ ΑΣΦ ? g bo

A water jet consumes 3750 W for 126 hours a week. a. What is the energy consumed (kWh) for a one-year period? b. What is the utility energy charge for this period at a rate of P750/kWh? c. What is the energy cost savings for this period if the water jet is switched off 5 hours a day? 1 year = 365.25 days?

Determine the truth values of p and q that will make the following propositions false. a. p V ( (~ q) → p )

Scientists in the laboratory create a uniform electric field E = 1.2x106 V/m in a region of space where B = 0. ▼ Part A What are the components of the electric field in the reference frame of a rocket traveling in the positive x-direction at 7.0x105 m/s ? Express your answer using two significant figures separated by commas. ΠΠ ΑΣΦ Ez, Ey, Ez = Submit Part B Request Answer Br, By, B₂ = Submit What are the components of the magnetic field in the reference frame of the rocket? Express your answer using two significant figures separated by commas. ΠΡΕΙ ΑΣΦ ? Request Answer V/m ? T

Equation1: Q(t)=CVcap(t) Equation 2: Qcharging(t)=CV(1−e^(−t/RC)) 1. Combine equations 1 and 2 to create an equation capable of finding the time-dependent voltage across a charging capacitor. Equation 3: I(t)≡(dQ(t))/(dt) 2. Combine equations 2 and 3 to create an equation capable of finding the time-dependent current across a charging capacitor.

H.W Sheet 3 1. Write the mesh equations for the network in Fig. 6.8 kn 2.7 kn 4.7 kf E 6V 22 κο 8.2 kf 1.2 kn 5v 22 kfl 1.1 k. 흥v

Part A Assume that the cell phone has a potential rating is about 3.8 V and a charge capacity is about 2600 mAh. What is the energy capacity for this cell phone?   Express your answer in watt-hours (Wh).   Part B Convert the charge capacity Q into coulombs.   Express your answer in coulombs (C).   Part C Convert the energy capacity U into kilojoules.   Express your answer in kilojoules (kJ).   Part D If the charge Q were stored on a parallel-plate capacitor with air as the dielectric, at the potential V, what would be the corresponding capacitance?   Express your answer with the appropriate units.   Part E If the energy in the battery were used to heat 1.0 L of water, estimate the corresponding change in the water temperature? The heat capacity of water is 4190 J/kg⋅K.   Express your answer in degrees Celsius.

How much work must be done on an electron to accelerate it from rest to a speed of 0.892c? Number i Units

Qno12solve

To initiate a nuclear reaction, an experimental nuclear physicist wants to shoot a proton into a 5.50-fm-diameter 12C nucleus. The proton must impact the nucleus with a kinetic energy of 1.90 MeV, Assume the nucleus remains at rest. Part A With what speed must the proton be fired toward the target? Express your answer with the appropriate units. • View Available Hint(s) HẢ ? Value Units v = Submit Part B Through what potential difference must the proton be accelerated from rest to acquire this speed? Express your answer with the appropriate units. • View Available Hint(s) HA AV = Value Units Submit