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A 500 g cart is rolling up a dynamics track. When the cart has a height of 0.20 m, its speed is 2.5 m/s. What is the total mechanical energy of the cart.
What would the final temperature of the person be in Celsius if they started at 37 C and had an equivalent mass of water of 137 pounds?
The speed all electromagnetic waves in empty space is 3.00 x 10^8 m/s. Calculate the wavelength of electromagnetic waves emitted at the following frequencies:- radio waves at 88.0 MHz and visible light at 6.0 x 10^8 MHz
Two elastic particles, each with mass m, collide head on. Initially they have speeds v1 and v2. What are their speeds after the collision
A circular loop of wire of 250.0 turns is placed perpendicular to a uniform magnetic field of .500 T. The area of the loop is decreasing at a rate of 1.00* 10^-3 m^2 in .400 s. Calculate the induced emf in the loop. please answere in depth
a small electric car overcomes a 250 n friction force when traveling 30 kmh. the electric motor is powered by
a 25g bullet pierces a sand bag 27cm thick. if the initial bullet velocity was 64 ms and it emerged from the sandbag
To tighten a spark plug, it is recommended that a torque of 15.6 N·m be applied. If a mechanic tightens the spark plug with a wrench that is 24.2 cm long, what is the minimum force necessary to create the desired torque?
A bike rider expends a certain amount of energy to travel 12 m=s while in the upright position. How fast will the rider travel with the same amount of energy expenditure if the bent over position is elected? Assume the rider's projected area is re..
A wave on a string is described by D(x,t)=(3.6cm)x sin[2(pi)(x/(8.4m)+t/(0.12s)+1)], where x is in m and t is in s.] What is the wave number
An ideal voltmeter V is connected to a 2.0-O resistor and a battery with emf 5.0 V and internal resistance 0.5 0. as shown in Fig.
What is the minimum value of v such that the pendulum bobwill barely swing through a complete vertical circle? In otherwords, enough to cause the pendulum bob to reach the top of itscircular path.
Two identical conducting spheres each having a radius of 0.500 cm are connected by a light 1.50 m long conducting wire. Determine the tension in the wire
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