Please calculate and explain question (b).
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Please calculate and explain question (b).
(1 point) A car traveling at 80 km/h applies its...
d) what is its velocity when it strikes your hand? (1 point) 0 Rank in order,...
d) what is its velocity when it strikes your hand?
(1 point) 0 Rank in order, from most positive to least positive, the accelerations at points A to C on the graph A, C > B > A O B. A> B> C D. B> A> C E. C>A> B (1 point) Two bananas have very similar shapes, but one is "twice as fat as the other How much heavier do you expect this banana to be? O B. 2...
(1 point) An elastic bone is compressed 10 μm by a student's weight. The student picks...
(1 point) An elastic bone is compressed 10 μm by a student's weight. The student picks up a very heavy backpack and the sam e bone compressed by an extra 5 um. (a) How many times heavier or lighter is the student than her backpack? mstudent 1.5 (b) How much more potential energy is stored in the compressed bone with the backpack on than without? withPack4 mbackpack (1 point) Two bananas have very similar shapes, but one is "twice as...
11.78 A car is traveling at a constant speed of 54 km/h when its driver sees...
11.78 A car is traveling at a constant speed of 54 km/h when its driver sees a child run into the road. The driver applies her brakes until the child returns to the sidewalk and then accelerates to resume her original speed of 54 km/h; the acceleration record of the car is shown in the figure. Assuming x = 0) when t = 0, determine (a) the time t, at which the velocity is again 54 km/h, (b) the position...
A car of mass 772 kg is traveling 24.4 m/s when the driver applies the brakes,...
A car of mass 772 kg is traveling 24.4 m/s when the driver applies the brakes, which lock the wheels. The car skids for 5.27 s in the positive x-direction before coming to rest. a). What is the car's acceleration (in m/s2)? (Indicate the direction with the sign of your answer.) b). What magnitude force (in N) acted on the car during this time? c). How far (in m) did the car travel?
A car is traveling with a constant speed when the driver suddenly applies the brakes, giving...
A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50m/s2. The car comes to a stop in a distance of 34.0 m. What was an initial speed of the car? How long (the time) did it take for this car to stop? What was the car's speed when it had traveled 17.0 m from the point where the brakes were applied? How long did it take for this...
A car of mass 875 kg is traveling 30.0 m/s when the driver applies the brakes,...
A car of mass 875 kg is traveling 30.0 m/s when the driver applies the brakes, which lock the wheels. The car skids for 5.60 s in the positive -direction before coming to rest. (a) What is the car's acceleration? (b) What magnitude force acted on the car during this time? (c) How far did the car travel? [Ans: ()-536 m/s (b) 4690 N(c) 84,0 m]
A car traveling 93 km/h strikes a tree. The front end of the car compresses and...
A car traveling 93 km/h strikes a tree. The front end of the car compresses and the driver comes to rest after traveling 0.85 m . What was the magnitude of the average acceleration of the driver during the collision? Express the answer in terms of "g's," where 1.00g=9.80m/s2.
A car traveling 56 km/h is 22.0 m from a barrier when the driver slams on...
A car traveling 56 km/h is 22.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.03 s later. (a) What was the car's constant deceleration before impact? m/s2 (b) How fast was the car traveling at impact? m/s
14-6. When the driver applies the brakes of a light truck traveling 40 km/h, it skids...
14-6. When the driver applies the brakes of a light truck traveling 40 km/h, it skids 3 m before stopping. How far will the truck skid if it is traveling 80 km/h when the brakes are applied?
A speeder traveling at a constant speed of 99 km/h races past a billboard. A patrol...
A speeder traveling at a constant speed of 99 km/h races past a billboard. A patrol car pursues from rest with constant acceleration of (9 km/h)/s until it reaches its maximum speed of 161 km/h, which it maintains until it catches up with the speeder. How long does it take the patrol car to catch the speeder if it starts moving just as the speeder passes? Answer in units of s. How far does each car travel? Answer in units...
d) what is its velocity when it strikes your hand?
(1 point) 0 Rank in order, from most positive to least positive, the accelerations at points A to C on the graph A, C > B > A O B. A> B> C D. B> A> C E. C>A> B (1 point) Two bananas have very similar shapes, but one is "twice as fat as the other How much heavier do you expect this banana to be? O B. 2...
(1 point) An elastic bone is compressed 10 μm by a student's weight. The student picks up a very heavy backpack and the sam e bone compressed by an extra 5 um. (a) How many times heavier or lighter is the student than her backpack? mstudent 1.5 (b) How much more potential energy is stored in the compressed bone with the backpack on than without? withPack4 mbackpack (1 point) Two bananas have very similar shapes, but one is "twice as...
11.78 A car is traveling at a constant speed of 54 km/h when its driver sees a child run into the road. The driver applies her brakes until the child returns to the sidewalk and then accelerates to resume her original speed of 54 km/h; the acceleration record of the car is shown in the figure. Assuming x = 0) when t = 0, determine (a) the time t, at which the velocity is again 54 km/h, (b) the position...
A car of mass 875 kg is traveling 30.0 m/s when the driver applies the brakes, which lock the wheels. The car skids for 5.60 s in the positive -direction before coming to rest. (a) What is the car's acceleration? (b) What magnitude force acted on the car during this time? (c) How far did the car travel? [Ans: ()-536 m/s (b) 4690 N(c) 84,0 m]
14-6. When the driver applies the brakes of a light truck traveling 40 km/h, it skids 3 m before stopping. How far will the truck skid if it is traveling 80 km/h when the brakes are applied?
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Amplitude=3;
fs=8000;
n=0:399;
t=0:1/fs: n*1/fs-1/fs;
signal=3+3*cos(2*pi*1100*t)+3*cos(2*pi*2200*t)+3*cos(2*pi*3300*t);
fftSignal= fft(signal);
fftSignal=f ftshift (fftSignal);
f=fs/2*linspace(-1,1,fs);
plot(f,abs(fftsignal);
xlabel('Frequency(Hz)’)
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