How many types of quarks are there?

a. 2

b. 4

c. 6

d. 8

A 5 kg book rests on a table. How much force is it exerting on the table? (Hint: think about acceleration due to gravity.)

Speed is calculated by taking divided by time

How would you define recombination?

What is the mass of an object if it accelerates at a rate of 2.5 m/s2 when a net force 50 N? a. 20 kg c. 10 kg b. 2 kg d. 75 kg het = ma TT 11 All ina na malato clom tonfite acelerationis

Why is the water cycle important to life on earth? the water cycle puts oxygen in the water. the water cycle moves water from place to place. the water cycle stores water for use in a time of drought.

The acceleration of an object is proportional to which of the following? the mass the energy of the object the inverse of the mass the inverse of the force applied

Suppose you squeeze a sponge into a small ball. does the mass of the sponge change? Does it's density change?

A solid round bar with diameter of 2-in has a groove cut to a diameter of 1.8-in, with a groove radius of 0.1-in. the bar is not rotating.

If a pilot pulls her 12.0 kg rollaboard suitcase along the ground with a force of 25. N for 10 M. The handle she pulls on makes an angle of 36.5 degrees with the horizontal. How much work does she do over the ten meter distance?

What happens to the density when water is poured into a empty glass?