If a person does 3 sets of pushups at 15 reps a set, how many total pushups has that person done?

Describe at least TWO hazardous conditions that exist in space AND the technological features a spacecraft must have in order to protect the astronauts from these hazards.

A 100gm copper block is heated in boiling water for 10min and then it is dropped into 150gm of water at 30 C in a 200gm calorimeter. if the temperature of water is raised to 33.6 C. determine the specific heat of material of calorimeter?

can cuclin concentration durng mitosis be explained by the fact that the cell divides in two and thus divides the material in the cell into two smaller portions?

A wheelchair ramp needs to be 8 inches high how long does it have to be to have a mechanical advantage of 5

At what speed does a 1200 kg compact car have the same kinetic energy as a 1.80Ã104 kg truck going 22.0 km/hr

An RLC series circuit has an applied voltage of 240 volts. R = 48 Ω, XL = 100 Ω, XC = 36 Ω, and Z = 80 Ω. What is the voltage drop across the capacitor?

You are on an elevator that is plummeting toward the ground at 30 m/s and you jump up right before it hits the ground. you jump upward with a velocity of 5 m/s. at what speed do you hit the ground?

An electric vehicle starts from rest and accelerates at a rate of 2.4 m/s2 in a straight line until it reaches a speed of 27 m/s. The vehicle then slows at a constant rate of 1.3 m/s2 until it stops.

Factors that determine the type of magma are?

What is a compound? a poly element pure substance a homogenous mixture a single element pure substance a heterogeneous mixture