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An alpha particle (m = 6.68e-27 kilogram, q = 3.20e-19 C) is moving perpendicularly to a uniform magnetic field at a speed of 7.88e6 meter per second. Because of the force exerted on it by the magnetic field, it is accelerating at 5.67e12 m/s2. Determine what is the strength of the magnetic field?
A student drops two metallic objects into a 120 g steel container holding 150 g of water at 25°C. One object is a200 g cube of copper that is initially at 75°C, and the other is a chunk of aluminium that is initially at 5.0°C.
A baseball (mass 0.14 kg, radius 3.7 cm) is spinning with an angular velocity of 98 rad/s. What is its rotational kinetic energy
A 2.20 H coil with a resistance of 2.18×10^2 ohms is in series with a 1.29×10^3 ohms resistor. What is the peak value of the potential difference across the coil
A fish swimming in a horizontal plane has velocity (4.00i + 1.00j) m/s at a point in the ocean where the position relative to a certain rock is r (initial)=(10.0i - 4.00j)m. After the fish swims for 20.0 s, its velocity is v=(20.0i - 5.00j) m/s.
When a light bulb is connected across the terminals of abattery, the battery delivers 24W of power to the bulb. What is emf of battery
During an adiabatic process, the temperature of 4.50 moles of a monatomic ideal gas drops from 515°C to 193°C. Find the change in internal energy
A particle undergoes two displacements. The first has a magnitude of 175 cm and makes an angle of 120.0° with the positive x axis. Find the magnitude and direction of the second displacement
A copper [k = 390 J/(s•m•C°)] pipe with an outer radius of 0.014 meter runs from an outdoor wall faucet into the interior of a house. Evaluate the inner radius of the pipe
A sinusoidal voltage Δv = (100 V) sin (160t) is applied to a series RLC circuit with L =50 mH, C = 100 μF, and R = 38 Ω. What is the impedance of the circuit? What is the maximum current in the circuit?
a plane leaves seattle flies 75.0rm mi at 22.0circ north of east and then changes direction to 55.0circ south of east.
a tennis ball of mass mt is held just above a basketball of mass mb and radius rb. with their centers vertically
a tow truck is pulling a car out of a ditch by means of a steel cable y 2.0 x 1011 nm2 that is 8.87 m long and has a
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