Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
A ball is thrown directly upward from the ground. Its height above the ground is given by h=50t-5t2
A ball is thrown straight downward from the top of a tall building. The initial speed of the ball is 10 m/s. It strikes the ground with a speed of 60 m/s.
The graph of the velocity v(t), in ft/sec, of a car traveling on a straight road, for 0 is greater than or equal to t is greater than or equal to 50
The voltage V in volts across a fixed resistance r in series with a variable resistance R is V=(rE)/(R+r) where E is the source voltage.
Americans consume approximately 9.5 × 106 gallons of popcorn each day. Approximately how much popcorn do they eat in a 365-day year?
Is log(ab)=log(a) log(b) a true statement? Choose any positive values for a and b and then compute both sides of this equation.
Using the transfer function obtained in part (a) above, derive an expression for the phase angle of the output voltage.
A wave is traveling toward +x on a wire. The motion of a point at x1= .45 m is shown.
If a baseball is projected upward from ground level with an initial velocity of 64 feet per second, then its height is a function of time, given by s(t) = -16t
Determine the open loop transfer function G(s).
Suppose you throw a baseball straight up at a velocity of 64 feet per second. A function can be created by expressing distance above the ground
Consider a unity feed-back control system with the following feedforward transfer function:
The open loop transfer function of a unity feed-back control system is given:
the values of K and k of the closed-loop system shown in Fig so that the maximum overshoot in unit-step response is 25% and peak time is 2 sec
If a soccer ball is kicked straight up from the ground with an initial velocity of 32 feet per second, then its height above the earth in feet is given by s(t)
A body has an a equation of motion measured in metres after t seconds
The path of a falling object is given by the function s = -16t^2 + v0t + s0, where represents the initial velocity in ft/sec and represents the initial height
Suppose that a projectile is fired at an angle of 45 degrees fromthe horizontal. Its initial position is the origin in the xy-plane, andits initial velocity
If he can go 12 miles downstream in the same amount of time as it takes to go 9 miles upstream, then what is the speed of the current?
Write a computer program or Excel spreadsheet that:
Flight of a Ball If a ball is thrown upward at 96 feet per second from the top of a building that is 100 feet high, the height of the ball can be modeled
When a ball is thrown up into the air, it makes the shape of a parabola. The equation S= -10t^2 + v*t + k gives the height of the ball at any time
A bullet is fired vertically upward. Its distance s (in ft) above the ground is given by: s=2250t-16.1t^2 where t is the time (in s).
The magnitude (size) of the force, between two charged particles a distance apart is given by the equation below. Ke is a constant.
The electrical resistance R (in ohms) of a resistor is measured at different temperatures T (in Celsius). The results are in the following table.