The letter R in the world Warm reminds you that warm air does what

According to the definition of mechanical work, pushing on a rock accomplishes no work unless there is

LekaFEV [45]

There must be movement in the same direction as the force put on the object. Hope this helps!

4 0

3 years ago

When adjusting the valve clearances on the engine, Technician A says the valves are closed when the valve lifter or follower is

andre [41]

Answer:

A. Technician A only

Explanation:

The camshaft opening ramp is what opens the valve, it starts at the basement of the inner circle and closes at the nose while the camshaft closing ramp allows for closing a valve starts at the nose and closes at the inner base circle. Valve clearance on an engine are performed when closing a valve, and is completed when the valve lifter or follower is on the inner base circle of the camshaft lobe.

7 0

3 years ago

A grindstone of mass 12 kg and radius 0.3 m is initially rotating freely at 48 rad/sec. An axe is brought into contact with the

lesya [120]

Answer:

$I = 0.54\,kg\cdot m^{2}$

Explanation:

1) The moment of inertia of the grindstone is:

$I = \frac{1}{2}\cdot m \cdot r^{2}$

$I = \frac{1}{2}\cdot (12\,kg)\cdot (0.3\,m)^{2}$

$I = 0.54\,kg\cdot m^{2}$

4 0

4 years ago

Read 2 more answers

One object is thrown vertically upward with an initial velocity of 100 m/s and

gavmur [86]

We have that for the Question it can be said that The maximum height reached by the first object will be 100 times that of the other.

$(H_{max})_1=100*(H_{max})_2$

From the question we are told

One object is thrown vertically upward with an initial velocity of 100 m/s and another object with an initial velocity of 10 m/s. The maximum height reached by the first object will be

that of the other.

a. 10,000 times

b. none of these

c. 1000 times

d. 100 times

e. 10 times

Generally the equation for the velocity is mathematically given as

$v=\frac{d}{t}\\\\Where\\\\\frac{H_{max}_1}{H_{max}_2}=\frac{(V_1)^2}{(v_2)^2}\\\\\frac{H_{max}_1}{H_{max}_2}=\frac{10000}{(10}\\\\$

$(H_{max})_1=100*(H_{max})_2$

Therefore

The maximum height reached by the first object will be 100 times that of the other.

$(H_{max})_1=100*(H_{max})_2$

For more information on this visit

brainly.com/question/23379286

8 0

3 years ago

A ball with a mass of 5.0 g is moving at a speed of 2.0 m/s. Would doubling the mass or doubling the speed have a greater effect

Sloan [31]

Answer:

Explanation:

doubling the speed will have a greater impact on kinetic energy as KE is a product of mass and the square of velocity.

KE = ½mv²

Base KE = ½(0.005)2.0² = 0.01 J

doubling the mass

KE = ½(0.010)2.0² = 0.02 J

doubling the velocity

KE = ½(0.005)4.0² = 0.04 J

8 0

3 years ago