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4 years ago

Help pls they are all going to have the same answers.

Physics

1 answer:

Liula [17]4 years ago

4 0

1.activities of daily living.
2.activity of daily living.
3.planned exercises activities.
4. planned exercises activities.
5. activities of daily living.
6. planned exercises activities.

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The air going into the tyre was warmed up by the pumping. What effect will this have on the motion of Gad molecules in the air i

Novosadov [1.4K]

Answer:

they are constantly bouncing everywhere and creating preasure

Explanation:

4 0

3 years ago

Running at 2 m/s, Bruce the 45 kg quarterback, collides with Biff, the 90 kg tackle, who is traveling at 7 m/s in the other dire

melomori [17]

Given data

*The mass of Bruce is m_1 = 45 kg

*The initial velocity of the Bruce is u_1 = 2 m/s

*The mass of the biff is m_2 = 90 kg

*The initial velocity of the Biff is u_2 = -7 m/s

*The final velocity of the first glider is v_2 = -1 m/s

According to the law of conservation of linear momentum, the total linear momentum of a system remains constant

Applying the law of conservation of momentum as

$\begin{gathered} p_i=p_f \\ m_1u_1+m_2u_2=m_1v_1+m_2v_2 \\ v_1=\frac{m_1u_1+m_2u_2-m_2v_2_{}_{}_{}_{}}{m_1} \end{gathered}$

Substitute the known values in the above expression as

$\begin{gathered} v_1=\frac{(45)(2)+(90)(-7)-(90)(-1)}{45} \\ =-10\text{ m/s} \end{gathered}$

Hence, the speed of the bruce knock backwards is v_1 = -10 m/s

3 0

2 years ago

What is the torque about the center of the sun due to the gravitational force of attraction of the sun on the planet?

Anon25 [30]

Torque, moment, or moment of force is the tendency of a force to rotate an object around an axis,fulcrum, or pivot. Just as a force is a push or a pull, a torque can be thought of as a twist to an object. Mathematically, torque is defined as the cross product of the vector by which the force's application point is offset relative to the fixed suspension point (distance vector) and the force vector, which tends to produce rotational motion. So torque about the center of the sun due to the gravitational force of attraction of the sun on the planet = (Gxm1xm2 / r^2). r sin(theta) = Gxm1xm2 /r^2). r sin0° = 0

3 0

4 years ago

Rearrange the equation current = voltage/resistance to express resistance in terms of current and voltage. Then solve the follow

MissTica

Answer:

Resistance, R = 13 ohms

Explanation:

The Ohm's law gives the direct relationship between the voltage, current and the resistance of the device. The relation is as follows :

$V=IR$

Where

I is the current

r is the resistance

The value of resistance is given by :

$R=\dfrac{V}{I}$

According to given data,

Voltage of the circuit, V = 130 V

Current rating of the circuit, I = 10 A

Resistance of the device,

$R=\dfrac{130\ V}{10\ A}$

R = 13 ohms

So, the resistance of the device is 13 ohms. Hence, this is the required solution.

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3 years ago

A runner makes one lap around a 200m track of a time of 25s . What were the runner's (a) average speed

Nady [450]

The runner runs 8 meters per second or 28.8 kilometers per hour

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4 years ago