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A 3-kilogram block slides along on a frictionless surface at 6 m/s north and strikes an obstacle that exerts an impulse on the block of 9 N-s to the south
On a frictionless surface, a 3-kilogram cart moves at a velocity of 2 meters per second west, What is this slower speed
The rate law for the reaction, 2NO(g) + O2(g) -- 2NO2(g), is found to be: rate of reaction=k[NO]2[O2]2 (PLEASE note that the 2's after the concentrations are powers, so we have NO to the power of 2
A 0.40-kilogram ball has a speed of 3 meters per second and collides with a stationary 4-kilogram block, what is the total momentum of the ball and block after the collision
Identify the acid and base on the left side of the following equations and identify their conjugate species on the right side
A force F acts on a 10kg object at rest for 3s and changes its velocity to 6m/s. What is the change in momentum of the object, What is the impulse of the force on the car
write the formula of the conjugate acid for each of the following bases: a)SO4^2- b)CN^- c)CH3-CH2-COO^- d)ClO2^- e)HS^-
A circuit is powered by a 12.0 V battery in series with R1=25 ohms A second set of resistors R2= 75 ohms, What is the voltage drop across the 75 ohm resistor
Prism of refractive index 1.53 is placed in water of refractive index 1.33. If the angle of the prism is 60. Calculate the angle of minimum deviation in water
Two current-carrying wires are exactly parallel to one another and both carry 3.5 A of current. What is the direction of the magnetic force caused by wire 2 on wire 1
A .5 kg block rests on a horizontal frictionless surface. It faces toward an inclined surface. How fast is the block going at that max height
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.875 rad/s. You, with a mass of 72.3 kg, Calculate the total angular momentum of the system.
A block is resting on a ramp with coefficient of friction between the blockand the ramp being .350, What is the max angle that the block can make without slipping
a cylindrical resistor of radius 1.0 mm and length of 1.0 cm has resistance of 10 ohms. calculate the uniform current density in the resistor when the power of the resistor is 1 watt
write the formula of the conjugate base for each of the following acids: a)HCO3^- b)CH3-NH3^+ c)HPO4^2- d)HNO2 e)HBrO
identify the acid(proton donor) and base(proton acceptor) for the reactants in each of the following
Determine the concentration of CO32? ions in a 0.18 M H2CO3 solution. Carbonic acid is a diprotic acid whose Ka1 = 4.3 x 10?7 and Ka2 = 5.6 x 10?11
If 54 J of work are needed to stretch a spring from 15 cm to 21 cm and 90 J are needed to stretch it from 21 cm to 27 cm, what is the natural length of the spring
When 15.0 L of water is added to 1.5 liter of a 2.0 M solution of potassium phosphate (aq), what is the final concentration
Typical field strengths are a few femoteslas (1fT=10^-15T). An adult brain is about 140mm wide, A reasonable magnetic field is 4.35fT at the sensor. According to this model, what is the current in the
The reduced coenzymes generated by the citric acid cycle donate electrons in a series of reactions called the electron transport chain. The energy from the electron transport chain is used for oxida
The blackbody radiation emitted from a furnace peaks at a wavelength of 3.4 10-6 m(0.0000034 m). What is the temperature inside the furnace
Two tiny spheres have the same mass and carry charges of the same magnitude. Determine the charge magnitude
Consider three charged particles arranged in an equilateral triangle with sides of length d. Find the electric field vector at the triangle's center
Identify the statements that accurately describe how hydrogen ion concentration relates to energy production in oxidative phosphorylation. ATP synthase provides energy in the form of ATP to actively