Cooper

A ball is kicked toward Ryan with an initial velocity of 21.0 m.s at an angle of 41 degrees above the horizontal. At that instant, Ryan is 51.0m from the kicker. In what direction, and with what constant velocity, should Ryan run in order to catch the bal...

18 years ago

I posted at around 7:44 please help me, everytime I post, no one ever helps me, or it is too late...I only ever want physics help...so please, lend a helping brain! :) (Im not trying to come off mean, Im just frustrated beyond belief)

18 years ago

An 8.00-gram sampleyields 1.64grams of Zinc when the compound is decomposed. What is the compound?

15 years ago

How many ways can 6 cars line up is it 6 X 6 is it 6 squared?

15 years ago

Consider the reaction, C2H4(g) + H2(g) ® C2H6(g), where DH = – 137 kJ. How many kilojoules are released when 55.3 g of C2H4 reacts?

13 years ago

A set of fossilized triceratops footprints discovered in Texas show that the front and rear feet were 3.2 m apart. The rear footprints were observed to be twice as deep as the front footprints. Assuming that the rear feet pressed down on the ground with t...

13 years ago

A baseball bat balances 61.1 cm from one end. If a 0.600 kg glove is attached to that end, the balance point moves 22.7 cm toward the glove. Find the mass of the bat.

13 years ago

You pull downward with a force of 32 N on a rope that passes over a disk-shaped pulley of mass 1.3 kg and radius 0.075 m. The other end of the rope is attached to a 0.60 kg mass. Find the linear acceleration of the 0.60 kg mass.

13 years ago

A torque of 0.13 N*m is applied to an egg beater. If the egg beater starts at rest, what is its angular momentum after 0.50 s?

13 years ago

In each hand you hold a 0.15 kg apple. What is the gravitational force exerted by each apple on the other when their separation is 0.25 m? What is the gravitational force exerted by each apple on the other when their separation is 0.50 m?

13 years ago

When the Earth, Moon, and Sun form a right triangle, with the Moon located at the right angle, the Moon is in its third-quarter phase. Find the magnitude of the net force exerted on the Sun. Find the direction of the net force exerted on the Sun. Give the...

13 years ago

Gravity on Titan Titan is the largest moon of Saturn and the only moon in the solar system known to have a substantial atmosphere. Find the acceleration due to gravity on Titan's surface, given that its mass is 1.35 X 10^23 kg and its radius is 2570 km.

13 years ago

The largest moon in the solar system is Ganymede, a moon of Jupiter. Ganymede orbits at a distance of 1.07 X 10^9 m from the center of Jupiter with an orbital period of about 6.18 X 10^5 s. Using this information, find the mass of Jupiter.

13 years ago

Two 0.53-g basketballs, each with a radius of 17 cm, are just touching. How much energy is required to change the separation between the centers of the basketballs to 1.1 m? (Ignore any other gravitational interactions.) How much energy is required to cha...

13 years ago

Suppose one of the Global Positioning System satellites has a speed of 4.50 km/s at perigee and a speed of 3.52 km/s at apogee. If the distance from the center of the Earth to the satellite at perigee is 2.21×104 km, what is the corresponding distance at...

13 years ago

Suppose a planet is discovered orbiting a distant star with 13 times the mass of the Earth and 1/13 its radius. How does the escape speed on this planet compare with that of the Earth? Ve new ------- = ve earth

13 years ago

A communications satellite with a mass of 450 kg is in a circular orbit about the Earth. The radius of the orbit is 2.9×10^4 km as measured from the center of the Earth. Calculate the weight of the satellite on the surface of the Earth Calculate the gravi...

13 years ago

Your heart beats with a frequency of 1.35 Hz. How many beats occur in a minute? If the frequency of your heartbeat increases, will the number of beats in a minute increase, decrease, or stay the same? How many beats occur in a minute if the frequency incr...

13 years ago

A 0.55-kg air cart is attached to a spring and allowed to oscillate. If the displacement of the air cart from equilibrium is x=(10.0 cm)cos[(2.00 s ^-1)t + pi], find the maximum kinetic energy of the cart. Find the maximum force exerted on it by the sprin...

13 years ago

A vibrating structural beam in a spacecraft can cause problems if the frequency of vibration is fairly high. Even if the amplitude of vibration is only a fraction of a millimeter, the acceleration of the beam can be several times greater than the accelera...

13 years ago

Two people with a combined mass of 135 kg hop into an old car with worn-out shock absorbers. This causes the springs to compress by 9.80 cm. When the car hits a bump in the road, it oscillates up and down with a period of 1.76 s. Find the total load suppo...

13 years ago

A bunch of grapes is placed in a spring scale at a supermarket. The grapes oscillate up and down with a period of 0.41 s, and the spring in the scale has a force constant of 640 N/m. What is the mass of the grapes? What is the weight of the grapes?

13 years ago

A mass attached to a spring oscillates with a period of 3.15 s. If the mass starts from rest at x= 4.10×10−2 m and time t= 0, where is it at time t= 6.37s? Is the mass moving in the positive or negative x direction at t= 6.37s?

13 years ago

A ball rolls on a circular track of radius 0.65 m with a constant angular speed of 1.2 rad/s in the counterclockwise direction. Part A If the angular position of the ball at t= 0 is theta= 0, find the x component of the ball's position at the time 2.6 s....

13 years ago

Write an expression for a transverse harmonic wave that has a wavelength of 2.8 m and propagates to the right with a speed of 14.2 m/s. The amplitude of the wave is 0.13 m, and its displacement at t=0 and x=0 is 0.13 m.

13 years ago

A motorcycle and a police car are moving toward one another. The police car emits sound with a frequency of 512 Hz and has a speed of 28.0 m/s. The motorcycle has a speed of 13.0 m/s. What frequency does the motorcyclist hear?

13 years ago

A pair of in-phase stereo speakers is placed side by side, 0.85 m apart. You stand directly in front of one of the speakers, 1.2 m from the speaker. What is the lowest frequency that will produce constructive interference at your location?

13 years ago

Two ships in a heavy fog are blowing their horns, both of which produce sound with a frequency of 165.0 Hz One ship is at rest; the other moves on a straight line that passes through the one at rest. If people on the stationary ship hear a beat frequency...

13 years ago

Four point charges are located at the corners of a square with sides of length a . Two of the charges are +q, and two are -q. Find the magnitude of the net electric force exerted on a charge +Q, located at the center of the square, for the following arran...

13 years ago

An object with a charge of -4.4 uC and a mass of 1.4×10^−2 kg experiences an upward electric force, due to a uniform electric field, equal in magnitude to its weight. Find the magnitude of the electric field. Find the direction of the electric field. If t...

13 years ago

A uniform electric field of magnitude 2.70×10^4 N/C makes an angle of 37 degrees with a plane surface of area 1.60×10^−2 m^2 . What is the electric flux through this surface?

13 years ago

A +5.0 uC charge experiences a 0.44 N force in the positive y direction. If this charge is replaced with a -2.7 uC charge, what force will it experience?

13 years ago

The electric flux through each of the six sides of a rectangular box are as follows: phi 1= +150.0 N*m^2/C; phi 2= +250.0 N*m^2/C; phi 3= -350.0 N*m^2/C; phi 4= +175.0 N*m^2/C; phi 5= -100.0 N*m^2/C; phi 6= +450.0 N*m^2/C How much charge is in this box?

13 years ago

A parallel-plate capacitor is constructed with circular plates of radius 0.056 m. The plates are separated by 0.25 mm, and the space between the plates is filled with dielectric with dielectric constant k. When the charge on the capacitor is 1.2 uc the po...

13 years ago

If there were only cats and dogs at the pound and the ratio of cats to dogs was 3:4 if there were 105 cats, how many animals altogether?

13 years ago

A 0.552 g sample of ascorbic acid(Vitamin C) was dissolved in water to a total volume of 20.0 ml and titrated with 0.1103 M KOH. The equivalence point occurred at 28.42 ml. The pH of the solution at 10.0 ml of added base was 3.72. From this data, determin...

13 years ago

Find a polynomial function with integer coefficients with degree 4, one root 3+radical2, and another root 4-3i. I got x^4-14x^3+80x^2-206x+175 I'm I correct?

13 years ago

Sketch the graph f(x)=-2x^2(x-5)^3(x+2)^4. What would be my coordinates. I solved it and my graph looks nothing like the one on wolframalpha. Can someone show me how you would solve this?

13 years ago

What mass of sodium benzoate should you add to 150.00 ml of a 0.15M benzoic acid solution to obtain a buffer with a pH of 4.25?

13 years ago

A 1.25 kg skateboard is coasting along the pavement at a speed of 5.04 m/s when a 0.640 kg cat drops from a tree vertically downward onto the skateboard. What is the speed of the skateboard-cat combination? Answer in units of m/s Your answer must be withi...

11 years ago

f(x)=1x, g(x)=1x, then (f∘g)(x)

10 years ago

f(x)=x2−1, g(x)=2x+2, then (fg)(x)= x2−12x+2, x≠1 so is this correct

10 years ago

Define a#b=ab-a-b+1 for all real numbers a and b. x # 7 = 42. What is the value of x?

9 years ago

The height, in meters, of a projectile can be modeled by h= -4.9t^2 + vt + s where t is the time (in seconds) the object has been in the air, v is the initial velocity (in meters per seconds) and s is the initial height (in meters). A soccer ball is kicke...

9 years ago

Describe a real-world situation that each expression might model. Tell what each variable represents. 14. 40

9 years ago

Express x^3-4/x^2(x+2) into partial fractions

8 years ago

A Ford Focus with a cross-sectional area of 3.00m^2 is driving on a highway at a speed of 88.0 km/hr, then accelerates to 113 km/hr to pass another car. How much more force does the motor have to supply to overcome air resistance at the higher speed? Assu...

5 years ago

determine the domain, range, and intercepts in these question j(x) = 4x^2 + 7x x^2 + 4x - 21

4 years ago

i need help rearanging my equation to solve for Mt Vt x Mt x Mole ratio (PS/S) = moles PS where KPS is PS and NaOH is T

4 years ago

The length of a rectangle is 2 inches less than twice its width. If the perimeter of the rectangle is 74 inches, what is the area of the rectangle?

3 years ago

Just confused a little bit as to where to start. Can the 50 m also be the Range of the ball? And if that is so, can you use that to find v2, because the ball is falling at a constant of 9.81 m/s^2...and then you could say that Ryan runs the same velocity...

18 years ago

MANAGE!! :)

18 years ago

Well I need to graph it but it days I did it wrong. I don't know what to do with the 2 in front. I made a sign chart and got +,+,+,- and used the roots -2,0,5 and grape it but I think I'm making a mistake somewhere.

13 years ago

This is what I got so far by using formaul for maximum height mu^2 sin^2 theta/2g = h and then mu^2(sin60)^2/2*9.81 = 3.048 so mu = 8.929m/s^2 please let me know if I am on correct path and what am I supppose to do next

10 years ago

so is g of x the inverse

10 years ago

f(x)=x2−1, g(x)=2x+2, then (fg)(x)= x2−12x+2, x≠1 so is this correct

10 years ago

cuz i got x ≠ -1

10 years ago

Did Oder ever help you with this?

9 years ago

Thanks!

9 years ago

I think the answer is Ethnic Differences.

9 years ago

Shouldn't it be 12.5?

9 years ago

ssfosineofnoifjos

9 years ago

The answers to the quiz is C B A D B

6 years ago

Anon is right thanks Anon!

6 years ago

stop talking bout spelling and give us the answer

5 years ago

Ive been trying to solve this question for 6 hrs!!

5 years ago

Mechanical to potential to gravitational

4 years ago

The answer is actually 38

4 years ago

You are bad at math😡

3 years ago

a

3 years ago