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pickupchik [31]

2 years ago

10

Two identical soccer balls are rolled toward each other. What will be true after they collide head-on

1 answer:

Juliette [100K]2 years ago

6 0

no because there is no chance that it will possibly hit eachother

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The logarithmic damping decrement of a mathematical pendulum is DeltaT=0.5. How will the amplitude of oscillations decrease duri

Alika [10]

Explanation:

Finding the (maximum) respective prime powers would yield the answer. Also we need not ... Is perfectly divisible by 720^n? ... So we can say that for any positive value of n it not divisible.

3 0

3 years ago

A conducting spherical shell with inner radius ‘a’ and outer radius ‘b’ has a positive charge Q located at its center. The total

kifflom [539]

Answer:deeeznuts

Explanation:

4 0

3 years ago

A sled that has a mass of 8 kg is pulled at a 50 degree angle with a force of 20 N. The force of friction acting on the sled is

Alik [6]

1) Acceleration of the sled

The acceleration of the sled is given by the net force acting in the direction parallel to the incline. There are two forces acting along this direction: the component of the weight parallel to the ramp (downward) and the friction (upward). Therefore, the net force acting in this direction is

$F=mg sin \theta- F_f =(8 kg)(9.8 m/s^2)(sin 50^{\circ})-2.4 N=57.7 N$

And the acceleration is given by Newton's second law:

$a=\frac{F}{m}=\frac{57.7 N}{8 kg}=7.21 m/s^2$

2) Normal force

The normal force acting on the sled is equal to the component of the weight perpendicular to the incline, therefore:

$N=mg cos \theta=(8 kg)(9.8 m/s^2 )(cos 50^{\circ})=50.4 N$

5 0

3 years ago

Read 2 more answers

Móvil A : V = 16 m/s ; t = 5 sMóvil B : V = 15 m/s ; t = 6 s Móvil C : V = 24 m/s ; t = 3 s Calcular la distancia que recorre ca

patriot [66]

Answer:

dC = 72m < dA = 80m < dB = 90m

Explanation:

In order to calculate the distance traveled by each mobile, you use the following formula:

$d=vt$ (1)

d: distance traveled

v: speed of the car

t: time of the motion

You replace the values of v and t for each mobile:

mobile A:

$d_A=v_At_A=(16m/s)(5s)=80m$

mobile B:

$d_B=v_Bt_B=(15m/s)(6s)=90m$

mobile C:

$d_C=v_Ct_C=(24m/s)(3s)=72m$

Then, you obtain that he distances traveled by the mobiles show:

dC = 72m < dA = 80m < dB = 90m

4 0

3 years ago

A 75 kg bobsled is pushed along a horizontal surface by two athletes. After the bobsled is pushed a distance of 4.5m starting fr

sergejj [24]

Answer:

The net force acting on the bobsled is 300 N.

Explanation:

Given:

Mass of the bobsled is, $m=75\ kg$

Displacement is, $d=4.5\ m$

Initial speed is, $u=0$ m/s

Final speed is, $v=6.0$ m/s

Net acceleration acting on the bobsled can be determined using the following Newton's equation of motion:

$v^2=u^2+2ad$

Plug in all the given values and solve for acceleration, $a$ .

$(6.0)^2=0+2a(4.5)\\36=9a\\a=\frac{36}{9}=4\ m/s^2$

Now, as per Newton's second law, net force is the product of mass and acceleration. So,

$F_{net}=ma\\F_{net}=75\times 4=300\ N$

Therefore, the net force acting on the bobsled is 300 N.

7 0

3 years ago